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Science - Transmission of Sound
 
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This Eureka.in Physics video shows how sound travels through the various states of matter, significance of Vibrations in the traveling of sound energy and the various type of sound waves. It also discusses about the measurement of sound and the concept of echo. You can also download our free app that covers all this and a glossary of key terms, and a quiz to test your knowledge on this topic here: http://bit.ly/14ttWKA Visit us at http://www.designmate.com For fun and educational updates, like us on Facebook: https://www.facebook.com/Designmate.Eureka Designmate Eureka is a unique channel that has Science & Mathematics videos from our Award winning K-12 product Eureka.in. These videos are available in multiple languages. If you would like to view more of our Videos or have a look at any specific topic do leave a comment.
Brian Cox explains why time travels in one direction - Wonders of the Universe - BBC Two
 
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SUBSCRIBE for more BBC highlights: https://bit.ly/2IXqEIn More about this programme: http://www.bbc.co.uk/programmes/b00zf9dh Professor Brian Cox builds sandcastles in the Namib Desert to explain why time travels in one direction. It is a result of a phenomenon called entropy; a law of physics that tells us any system tends towards disorder.
Views: 940633 BBC
Traveling Waves: Crash Course Physics #17
 
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Get Your Crash Course Physics Mug here: https://store.dftba.com/products/crashcourse-physics-mug Waves are cool. The more we learn about waves, the more we learn about a lot of things in physics. Everything from earthquakes to music! Ropes can tell us a lot about how traveling waves work so, in this episode of Crash Course Physics, Shini uses ropes (and animated ropes) to talk about how waves carry energy and how different kinds of waves transmit energy differently. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 606636 CrashCourse
The Annex Minute Presents "Energy Travels in a Direction" by Ray Dionaldo
 
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http://thewealthbuildingannex.com/ The Annex Minute is a collection of the most insightful video clips from many of the world's leaders in the various business fields they represent. These videos are brought to you by The Wealth Building Annex, A Business Mastermind Organization providing excellence in Content, Contacts, and Entertainment. We provide Resources for Business Owners, Entrepreneurs and CEOs through Specific Business Masterminds, Relevant Keynote Presentations, Business Educational Workshops and opportunities for Strategic Alliances. Find out More by visiting the website in the link at the top of this description.
Views: 270 theannexminute
Sound Waves in Air 1961 PSSC; Richard Bolt, MIT; Acoustic Lens Demonstration
 
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Physical Science Study Committee Films (PSSC) playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_KuXqv0QzMoNQYgR_nBxETx Physics & Physical Sciences playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_JKIMNk88rKCkhpK73_qmHY "Professor Richard H. Bolt [ [Massachusetts Institute of Technology, Bolt, Beranek and Newman, BBN Technologies] discusses sound wave phenomena, how sound travels, and how it is reflected. The film demonstrates that sound is a wave phenomenon and thus can also move around barriers. Also the film shows how sound waves can be refracted through a lens." Public domain film, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). https://en.wikipedia.org/wiki/Sound Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a transmission medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain. Humans can hear sound waves with frequencies between about 20 Hz and 20 kHz. Sound above 20 kHz is ultrasound and below 20 Hz is infrasound. Other animals have different hearing ranges... Sound is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves. It requires a medium to propagate. Through solids, however, it can be transmitted as both longitudinal waves and transverse waves. Longitudinal sound waves are waves of alternating pressure deviations from the equilibrium pressure, causing local regions of compression and rarefaction, while transverse waves (in solids) are waves of alternating shear stress at right angle to the direction of propagation. Sound waves may be "viewed" using parabolic mirrors and objects that produce sound. The energy carried by an oscillating sound wave converts back and forth between the potential energy of the extra compression (in case of longitudinal waves) or lateral displacement strain (in case of transverse waves) of the matter, and the kinetic energy of the displacement velocity of particles of the medium... https://en.wikipedia.org/wiki/Wave In physics, a wave is an oscillation accompanied by a transfer of energy that travels through a medium (space or mass). Frequency refers to the addition of time. Wave motion transfers energy from one point to another, which displace particles of the transmission medium–that is, with little or no associated mass transport. Waves consist, instead, of oscillations or vibrations (of a physical quantity), around almost fixed locations. A wave is a disturbance that transfers energy through matter or space There are two main types of waves. Mechanical waves propagate through a medium, and the substance of this medium is deformed. Restoring forces then reverse the deformation. For example, sound waves propagate via air molecules colliding with their neighbors. When the molecules collide, they also bounce away from each other (a restoring force). This keeps the molecules from continuing to travel in the direction of the wave. The second main type, electromagnetic waves, do not require a medium. Instead, they consist of periodic oscillations of electrical and magnetic fields originally generated by charged particles, and can therefore travel through a vacuum. These types vary in wavelength, and include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. Waves are described by a wave equation which sets out how the disturbance proceeds over time. The mathematical form of this equation varies depending on the type of wave. Further, the behavior of particles in quantum mechanics are described by waves. In addition, gravitational waves also travel through space, which are a result of a vibration or movement in gravitational fields. A wave can be transverse, where a disturbance creates oscillations that are perpendicular to the propagation of energy transfer, or longitudinal: the oscillations are parallel to the direction of energy propagation. While mechanical waves can be both transverse and longitudinal, all electromagnetic waves are transverse in free space...
Views: 23011 Jeff Quitney
How do spacecraft navigate in space ?
 
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https://brilliant.org/curiousdroid/ How do spacecraft navigate in space over billions of kilometers and with split second timing during missions that last for years or decades. Here we look at how its done and the underlying principles that make it all possible. Sponsored by Brilliant.org Presented by Paul Shillito Written and Researched by Paul Shillito Images and Footage NASA, ESA, MIT, SolarSystemVideos Music by Response Data by P C III is licensed under a Attribution License. Based on a work at www.pipechoir.com source : http://freemusicarchive.org/music/P_C_III/Response_Data_1945/Response_Data
Views: 1110976 Curious Droid
How Earth Moves
 
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It’s here! Science stuff, mind-blowing stuff, Vsauce stuff, oh my!! THE CURIOSITY BOX: https://www.thecuriositybox.com/ Jake’s video about The Curiosity Box: https://www.youtube.com/watch?v=p91-GhjgeEU Minute Physics on why December days are the longest: https://www.youtube.com/watch?v=nZMMuv0Ltyo StandUpMaths on calendars and leap days: https://www.youtube.com/watch?v=qkt_wmRKYNQ Tom Scott on the Equation of Time: https://www.youtube.com/watch?v=d9Qnobvx_kM My video on what would happen if the Earth stopped spinning: https://www.youtube.com/watch?v=K0-GxoJ_Pcg GREAT visuals showing how Earth moves around the sun: https://www.youtube.com/watch?v=82p-DYgGFjI http://www.timeanddate.com/ George Washington’s birthday: https://www.archives.gov/legislative/features/washington/ real-time sub solar point location: http://rl.se/sub-solar-point Lahaina noon images from the Oahu Astrophotography club: https://www.facebook.com/OahuAstrophotoClub analemma: https://en.wikipedia.org/wiki/Analemma great solargraph and analemma images: http://analemma.pl/english-version interactive seasons and ecliptic simulator: http://astro.unl.edu/classaction/animations/coordsmotion/eclipticsimulator.html Nasa video of seasonal movement of Earth: https://svs.gsfc.nasa.gov/20063 Tropical year: https://en.wikipedia.org/wiki/Tropical_year Earth rotation specifics: https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20196 How Earth moves through the universe: https://astrosociety.org/edu/publications/tnl/71/howfast.html http://www.slate.com/blogs/bad_astronomy/2013/03/04/vortex_motion_viral_video_showing_sun_s_motion_through_galaxy_is_wrong.html http://space.gizmodo.com/racing-while-standing-still-1558642922/1559622011 https://www.reddit.com/r/askscience/comments/1rhu7r/i_always_see_representations_of_the_solar_system minute physics on cab: https://www.youtube.com/watch?v=_mZQ-5-KYHw PBS spacetime on the cosmic microwave background: https://www.youtube.com/watch?v=3tCMd1ytvWg https://www.youtube.com/watch?v=wcBjibuHxEk CMB rest frame: http://physics.stackexchange.com/questions/25928/is-the-cmb-rest-frame-special-where-does-it-come-from https://www.reddit.com/r/AskPhysics/comments/2va4t6/does_no_absolute_reference_frame_contradict_the/ Wikipedia: https://en.wikipedia.org/wiki/Day https://en.wikipedia.org/wiki/Solar_time https://en.wikipedia.org/wiki/Sidereal_time https://en.wikipedia.org/wiki/Calendar https://en.wikipedia.org/wiki/Gregorian_calendar https://en.wikipedia.org/wiki/Calendar_reform https://en.wikipedia.org/wiki/Day_length_fluctuations https://en.wikipedia.org/wiki/Cosmic_microwave_background wikicommons images: https://en.wikipedia.org/wiki/Sundial#/media/File:Kew_Gardens_0502.JPG https://en.wikipedia.org/wiki/File:CathedralofLearningLawinWinter.jpg https://en.wikipedia.org/wiki/Miami_Beach,_Florida#/media/File:South_Beach_20080315.jpg To explore space, I highly recommend these: http://www.shatters.net/celestia/ http://en.spaceengine.org/ music by http://www.youtube.com/jakechudnow and http://www.audionetwork.com Awesome 3D graphics by Eric Langlay: https://www.youtube.com/user/ericdraven30 Lame 2D stuff by me.
Views: 13177801 Vsauce
Firearm Science: Bullet Trajectory
 
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Host Jessie Duff and Veteran Air Force Sniper and Long Range Expert George Reinas help us understand the factors behind bullet trajectory
Views: 561346 GOnraMedia
The Science of Lightning | National Geographic
 
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National Geographic explores the science behind lightning strikes. Lightning strikes during thunderstorms kill more Americans each year than either tornadoes or hurricanes. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta The Science of Lightning | National Geographic https://youtu.be/h-0gNl5f4BU National Geographic https://www.youtube.com/natgeo
Views: 485407 National Geographic
Intro to Solar Orientation [Solar Schoolhouse]
 
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short video tutorial on Solar Orientation. Includes: Reasons for the Seasons, Seasonal Sun Paths, Measuring solar position, sun path charts, the 2 North Poles, and other resources.
Views: 475471 Solar Schoolhouse
The Journey of Electrical Energy
 
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An educational short animation film explaining the production of electricity in Western Macedonia, Greece. The target audience are children attending the 5th and 6th grade of elementary School. Created in Association with the School of Education and the Department of Fine & Applied Arts, of the University of Western Macedonia, Greece. Coordination - Scenario- Scientific Supervision: Anna Spyrtou - Assistant Professor (Department of Primary Education) Direction - Animation - Original Music: Elias Pierrakos - Student (Department of Fine & Applied Arts) Special Thanks to: Antony Vrachnas - English Narration Niki Gakoudi, Ageliki Lothoxoedou - Translation This is an one-month non-stop work (day and night) project and it is being uploaded online just for previewing purposes . The creators retain all rights of copyright, management and distribution of the film. Florina 2011 Original Video in Greek: http://youtu.be/coWQ1R2r5MY
Views: 1038415 eli0s78
Transverse and Longitudinal Waves
 
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100 - Transverse and Longitudinal Waves In this video Paul Andersen compares and contrasts transverse and longitudinal waves. Waves carry energy through oscillations. In transverse waves the oscillations are perpendicular to the direction of the wave and in longitudinal they are parallel. Several examples and a simulation are included. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: 2007, Dantor 10:21, 1 November. Layer Structure of Earth Including Distance Scale, 2007. based on. http://commons.wikimedia.org/wiki/File:Aufbau_der_erde_schematisch2.png. Debianux. Deutsch: Schwingungs- Und Ausbreitungsrichtung Einer Longitudinalwelle (a) Und Einer Transversalwelle (b) (Beschriftung Auf Deutsch), September 14, 2008. Own work. http://commons.wikimedia.org/wiki/File:Longitudinalwelle_Transversalwelle.png. ESO. English: Artist’s Impression of How Type Ia Supernovae May Look like as Revealed by Spectro-Polarimetry Observations. The Outer Regions of the Blast Cloud Is Asymmetric, with Different Materials Found in “Clumps”, While the Inner Regions Are Smooth. Using Observations of 17 Supernovae Made over More than 10 Years with ESO’s Very Large Telescope and the McDonald Observatory’s Otto Struve Telescope, Astronomers Inferred the Shape and Structure of the Debris Cloud Thrown out from Type Ia Supernovae. Such Supernovae Are Thought to Be the Result of the Explosion of a Small and Dense Star — a White Dwarf — inside a Binary System. As Its Companion Continuously Spills Matter onto the White Dwarf, the White Dwarf Reaches a Critical Mass, Leading to a Fatal Instability and the Supernova. But What Sparks the Initial Explosion, and How the Blast Travels through the Star Have Long Been Thorny Issues. The Study Shows That the Outer Regions of the Blast Cloud Is Asymmetric, with Different Materials Found in “Clumps”, While the Inner Regions Are Smooth., November 30, 2006. http://www.eso.org/public/images/eso0644a/. http://commons.wikimedia.org/wiki/File:Artist%27s_impression_of_how_Type_Ia_supernovae_may_look_like_as_revealed_by_spectro-polarimetry_observations.jpg. “Kola Superdeep Borehole.” Wikipedia, the Free Encyclopedia, February 24, 2015. http://en.wikipedia.org/w/index.php?title=Kola_Superdeep_Borehole&oldid=648704046. “Longitudinal Wave.” Wikipedia, the Free Encyclopedia, April 4, 2015. http://en.wikipedia.org/w/index.php?title=Longitudinal_wave&oldid=654878903. McLassus, Roger. Deutsch: Das Bild Zeigt Eine Realistische Störung Der Wasseroberfläche (durch Kurzes Eintauchen Eines Stabes) Und Die Ausbreitung Dieser Störung Durch Kreiswellen von Eingeschränkter Konzentrizität Und Deren Überlagerungen. Der Flache Beleuchtungswinkel Gibt Dem Wasser Ein Fast Metallisches Aussehen.English: Surface Waves of Water: Expansion of a Disturbance. – It Shows a Realistic Disturbance (caused by Shortly Dipping a Stick into the Water) and Its Expansion Forming Interfering Circles of Limited Concentricity. The near Metallic Appearance of the Water’s Surface Is due to the Small Angle of illumination.Español: Ondas Superficiales En El Agua: Expansión de Una Perturbación. – Muestra Una Representación Realista de Una Perturbación (causada Por Sumergir Por Un Instante Un Palito En El Agua) Y Su Expansión Formando Círculos Concéntricos Que Interfieren. La Apariencia Metálica de La Superficie Del Agua Se Debe Al Bajo Ángulo En La iluminación.Français : Ondes de Surface Sur de L’eau : L’expansion D’une Perturbation. On Observe Une Perturbation Réaliste (due À Un Bâton) et Son Expansion Sous La Forme D’ondes Interférentes et Grossièrement Concentriques. L’aspect Quasi Métallique de L’eau Est Dû À Une Lumière rasante.Português: Ondas de Superfície de Água: A Expansão de Um Distúrbio. É Mostrada a Perturbação Realística (causada Por Um Bastão) E Sua Expansão Formando Círculos de Interferência Aproximadamente Concêntricos. A Aparência Metálica Da Superfície É Resultante Do Baixo Ângulo de Iluminação., January 14, 2006. picture taken by Roger McLassus (improved by DemonDeLuxe, Sep 2006). http://commons.wikimedia.org/wiki/File:2006-01-14_Surface_waves.jpg. “Polarizer.” Wikipedia, the Free Encyclopedia, March 23, 2015. http://en.wikipedia.org/w/index.php?title=Polarizer&oldid=653122103. “Polarizer.” Wikipedia, the Free Encyclopedia, March 23, 2015. http://en.wikipedia.org/w/index.php?title=Polarizer&oldid=653122103. “Transverse Wave.” Wikipedia, the Free Encyclopedia, March 25, 2015. http://en.wikipedia.org/w/index.php?title=Transverse_wave&oldid=653425060.
Views: 105059 Bozeman Science
Space-Time And The Speed Of Light | Einstein's Relativity
 
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http://facebook.com/ScienceReason ... Albert Einstein's Theory of Relativity (Chapter 3): Space-Time And The Speed Of Light The concept of spacetime combines space and time to a single abstract "space", for which a unified coordinate system is chosen. Typically three spatial dimensions (length, width, height), and one temporal dimension (time) are required. Dimensions are independent components of a coordinate grid needed to locate a point in a certain defined "space" --- Please subscribe to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceMagazine • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- SPACETIME In physics, spacetime (or space-time) is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions. According to certain Euclidean space perceptions, the universe has three dimensions of space and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels. In classical mechanics, the use of Euclidean space instead of spacetime is appropriate, as time is treated as universal and constant, being independent of the state of motion of an observer. In relativistic contexts, however, time cannot be separated from the three dimensions of space, because the observed rate at which time passes for an object depends on the object's velocity relative to the observer and also on the strength of intense gravitational fields, which can slow the passage of time. • http://en.wikipedia.org/wiki/Spacetime --- GENERAL RELATIVITY Special relativity is a theory of the structure of spacetime. It was introduced in Albert Einstein's 1905 paper "On the Electrodynamics of Moving Bodies" (for the contributions of many other physicists see History of special relativity). Special relativity is based on two postulates which are contradictory in classical mechanics: 1. The laws of physics are the same for all observers in uniform motion relative to one another (principle of relativity), 2. The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the source of the light. The resultant theory agrees with experiment better than classical mechanics, e.g. in the Michelson-Morley experiment that supports postulate 2, but also has many surprising consequences. Some of these are: * Relativity of simultaneity: Two events, simultaneous for one observer, may not be simultaneous for another observer if the observers are in relative motion. * Time dilation: Moving clocks are measured to tick more slowly than an observer's "stationary" clock. * Length contraction: Objects are measured to be shortened in the direction that they are moving with respect to the observer. * Mass-energy equivalence: E = mc2, energy and mass are equivalent and transmutable. * Maximum speed is finite: No physical object or message or field line can travel faster than light. The defining feature of special relativity is the replacement of the Galilean transformations of classical mechanics by the Lorentz transformations. (See Maxwell's equations of electromagnetism and introduction to special relativity). • http://en.wikipedia.org/wiki/Theory_of_relativity .
Views: 1771595 ScienceTV
Hypnosis for Finding Your Life's Purpose (Higher Self Guided Meditation Spirit Guide)
 
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Welcome to this guided self hypnosis experience for helping you to find your life's purpose. This hypnotic experience creates a safe and self-guided visualization to discover your most authentic answers - all coming directly from your own higher self. Simply listen along to the gently relaxing suggestions as you allow your subconscious mind to create powerful associations and meaningful insights into what is most important to your deepest being. Discover your passion, your true path and your greatest enthusiasm for living your most satisfying life! This self hypnosis experience may be repeated as often as you choose to reinforce your positive intentions and your own personal answers and inspirations. Download this digital MP3 track: ► https://michael-sealey.dpdcart.com/cart/add?product_id=133995&method_id=143098 Depression & Anxiety Recovery Pack 5 x MP3 Digital Audio Collection here: ► https://michael-sealey.dpdcart.com/cart/add?product_id=121819&method_id=129715 Downloads on iTunes: ► https://itunes.apple.com/au/artist/michael-sealey/id921827456 CD Baby tracks: ► http://www.cdbaby.com/Artist/MichaelSealey Subscribe for more meditation & hypnosis: ► http://www.youtube.com/subscription_center?add_user=MichaelSealey Enjoy & Peace. Vocals and original photography by Michael Sealey © 2016
Views: 1184909 Michael Sealey
Light | The Dr. Binocs Show | Learn Videos For Kids
 
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Hey Kids, have you ever thought what would we do without lights? Well, Dr. Binocs is here to light up your tickling brain cells. Watch the video so as to know interesting facts about light! The detailed video break-up is given below 00:24 – What is Light? 00:32 – How does light travel? 00:47 – Transparent Object 01:08 – Opaque Objects 01:31 – Translucent Object 02:17 – Refraction 02:49 – Trivia Time Voice Over Artist - Joseph D'Souza Script Writer - Sreejoni Nag Director - Aashka Shah Visual Artists - Aashka Shah, Pranav Korla Illustrators - Aashka Shah, Pranav Korla Animators - Tushar Ishi, Rupesh Hire, Digamber Bhadre VFX Artist - Swapnil Ghoradkar Background Score - Jay Rajesh Arya Sound Engineer - Mayur Bakshi Creative Head - Sreejoni Nag Producer: Rajjat A. Barjatya Copyrights and Publishing: Rajshri Entertainment Private Limited All rights reserved. Share on Facebook - http://goo.gl/7k7Kxi Tweet about this - http://goo.gl/WDfrOk Catch Dr.Binocs At - https://goo.gl/SXhLmc To Watch More Popular Nursery Rhymes Go To - https://goo.gl/CV0Xoo To Watch Alphabet Rhymes Go To - https://goo.gl/qmIRLv To Watch Compilations Go To - https://goo.gl/nW3kw9 Catch More Lyricals At - https://goo.gl/A7kEmO Subscribe to Peekaboo Kidz: http://bit.ly/peekabookidz Like our Facebook page: https://www.facebook.com/peekabootv
Views: 520274 Peekaboo Kidz
REFLECTION OF LIGHT
 
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For more information: http://www.7activestudio.com [email protected] http://www.7activemedical.com/ [email protected] http://www.sciencetuts.com/ [email protected] Contact: +91- 9700061777, +91- 9100061777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. Reflection of lightDefinition: When light ray strikes the boundary of two media such as air and glass, a part of light is turned back into the same medium. This is called reflection of light.A highly polished surface, such as a mirror, reflects most of the light falling on it.Laws of reflection: 1.The angle of incidence is equal to the angle of reflection, and 2.The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the same plane.These laws are applicable to all types of reflecting surfaces including spherical surfaces.Types of reflection: The types of reflection are regular reflection and irregular or diffused reflection.Regularreflection.It occurs when a beam of light falls on a smooth and polished surface such as a plane mirror. Irregular reflection. It occurs when a beam of light falls on a rough surface such as wall of a room.Incident ray:Light ray striking a reflecting surfacePoints of incidence:The point at which the incident ray strikes the reflecting surface.Reflectedray:The light ray obtained after reflection from the surface, in the same medium in which the.incident ray is travelling. Normal:The perpendicular drawn to the surface at the point of incidence. Angle of incidence:The angle which the incident ray makes with the normal at the point of incidence. It is denoted by the letter i.Angle of reflection:The angle which the reflected ray makes with the normal at the point of incidence.It is denoted by the letter r.Plane of incidence:The plane containing the incident ray and the normal. Plane of reflection:The plane containing the reflected ray and the normal
Views: 419836 7activestudio
Why Doesn't the Moon Fall to Earth? Exploring Orbits and Gravity
 
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Using a bucket with stretchy fabric stretched over it, allow visitors to experiment with marbles and weights to discover some basics about gravity and orbits. View more details about this activity here: http://1.usa.gov/1JxnkMv
Views: 602946 NASA Night Sky Network
Frequency, Wavelength, and the Speed of Light | a video course made easy by Crash Chemistry Academy
 
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This video describes what frequency is, how it is measured, how frequency and wavelength are related visually and mathematically, and derives the mathematical relationship between frequency, wavelength, and the speed of light CC Academy videos are easy 101 crash course tutorials for step by step Chemistry help on your chemistry homework, problems, and experiments. Check out our best lessons: - Solution Stoichiometry Tutorial: How to use Molarity - Stoichiometry - Quantum Numbers - Rutherford's Gold Foil Experiment, Explained - Covalent Bonding Tutorial: Covalent vs. Ionic bonds - Metallic Bonding and Metallic Properties Explained: Electron Sea Model - Effective Nuclear Charge, Shielding, and Periodic Properties - Electron Configuration Tutorial + How to Derive Configurations from Periodic Table - Orbitals, the Basics: Atomic Orbital Tutorial — probability, shapes, energy - Metric Prefix Conversions Tutorial - Gas Law Practice Problems: Boyle's Law, Charles Law, Gay Lussac's, Combined Gas Law —More on Light | Wiki— "Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight.[1] Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10−7 to 7.00 × 10−7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths).[2][3] This wavelength means a frequency range of roughly 430–750 terahertz (THz). The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey. The primary properties of visible light are intensity, propagation direction, frequency or wavelength spectrum, and polarization, while its speed in a vacuum, 299,792,458 metres per second, is one of the fundamental constants of nature. Visible light, as with all types of electromagnetic radiation (EMR), is experimentally found to always move at this speed in a vacuum.[citation needed] In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.[4][5] In this sense, gamma rays, X-rays, microwaves and radio waves are also light. Like all types of light, visible light is emitted and absorbed in tiny "packets" called photons and exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics." Wikipedia contributors. "Light." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 5 Jun. 2016. Web. 18 Jun. 2016.
Views: 131523 Crash Chemistry Academy
What is Energy? | Space Time
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Energy is the most powerful and useful concept in all of physics, but what exactly is it? You can start your free trial of The Great Courses Plus at http://ow.ly/E15c30hIv7c You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Help translate our videos! https://www.youtube.com/timedtext_cs_... Previous Episode: Kronos: Devourer of Worlds https://www.youtube.com/watch?v=9-SxVSpSoek&t=1s Written and Hosted by Matt O'Dowd Produced by Rusty Ward Graphics by Matthew Ranker Assistant Editing and Sound Design by Mike Petrow and Meah Denee Barrington Made by Kornhaber Brown (www.kornhaberbrown.com) In physics energy is not a substance, nor is it mystical. Energy is a number. A quantity. And the quantity itself isn’t even particularly fundamental. Instead, it’s a mathematical relationship between other, more fundamental quantities. It was 17th century polymath Gottfried Leibnitz who first figured out the mathematical form of what we call kinetic energy – the energy of motion. He realized that the sum of mass times velocity squared for a system of particles bouncing around on a flat surface is always conserved, assuming no friction and perfect bounciness. Leibnitz called this early incarnation of energy vis viva – the living force. Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big Bang CoolAsCats David Nicklas Faisal Saud Anton Lifshits Joey Redner Quasar Tambe Barsbay Mayank M. Mehrota Mars Yentur Mark Rosenthal Dean Fuqua Justin Lloyd Roman Pinchuk Hypernova Shaun Williams Edmund Fokschaner Max Levine Matthew O’Connor Eugene Lawson Martha Hunt Joseph Salomone Chuck Zegar Jordan Young Ratfeast John Hofmann Barry Hatfield Craig Peterson Thanks to our Patreon Gamma Ray Burst Supporters: Jane Myers Brandon Cook James Flowers Greg Allen Denys Ivanov Nick Virtue Alexey Eromenko Nicholas Rose Scott Gossett Mark Dykstra Mark Vasile Patrick Murray Sultan Alkhulaifi Alex Seto Michal-Peanut Karmi Erik Stein Daniel Lyons Kevin Warne JJ Bagnell J Rejc Avi Goldfinger John Pettit Florian Stiglmayr Benoit Pagé-Guitard Nathan Leniz Jessica Fraley Loro Lukic Brandon Labonte David Crane Greg Weiss "The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US market. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally."
Views: 549752 PBS Space Time
Sound: Crash Course Physics #18
 
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Get Your Crash Course Physics Mug here: https://store.dftba.com/products/crashcourse-physics-mug We learn a lot about our surroundings thanks to sound. But... what is it exactly? Sound, that is. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about? In this episode of Crash Course Physics, Shini goes over some of the basics (and some of the not so basics) of the Physics of Sound. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 556956 CrashCourse
Physics - Mechanics: Work, Energy, and Power (7 of 20) Inclined Plane (Friction)
 
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Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to find the kinetic needed to pushing an object up an inclined plane with friction..
Views: 209643 Michel van Biezen
Earth's motion around the Sun, not as simple as I thought
 
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Source: CassioPeia Project http://www.cassiopeiaproject.com/ More at https://www.youtube.com/user/cassiopeiaproject
Views: 4781125 Aryan Navabi
Q10 of 100   direction of travel is electric field cross magnetic field
 
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A plane electromagnetic wave travels in vacuum along z direction. What can you say about the direction of electric and magnetic field vectors?
Views: 137 Leena Gurg
Bill Nye The Science Guy on Heat (Full Clip)
 
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Heat flows. It's the energy of moving molecules. Heat makes things go; it can make things burn. From snow to ice floe, things may look cold, but they've got heat. Conduction, radiation, convection, natural & forced that's how heat gets around.
Views: 795251 Bill Nye
How your digestive system works - Emma Bryce
 
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Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-your-digestive-system-works-emma-bryce Across the planet, humans eat on average between 1 and 2.7 kilograms of food a day, and every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters, this is one of the most complicated systems in the body. Emma Bryce explains how the different parts of the digestive system work to transform your food into the nutrients and energy that keep you alive. Lesson by Emma Bryce, animation by Augenblick Studios. Thank you so much to our patrons for your support! Without you this video would not be possible! Narat Suchartsunthorn, Joy Love Om, Gi Nam Lee, Shawn Quichocho, Simone Kidner, Anika Westburg, Dale Dualan, Barun Padhy, John Ess, Brandy Jones, Devin Harris, Tony Trapuzzano, Stephen Michael Alvarez, Tom Lee, Juliana , Jason Weinstein, Hoang Ton, Kris Siverhus, Alexander Walls, Annamaria Szilagyi, Morgan Williams, Abhijit Kiran Valluri, Mandeep Singh, Peter Owen, Sama aafghani, Vinicius Lhullier, Connor Wytko, سلطان الخليفي, Marylise CHAUFFETON, Marvin Vizuett, Jayant Sahewal, Joshua Plant, Quinn Shen, Michael James Busa, Caleb ross, Elizabeth Cruz, Elnathan Joshua Bangayan, Gaurav Rana, Mullaiarasu Sundaramurthy, Jose Henrique Leopoldo e Silva, Dan Paterniti, Jose Schroeder, Jerome Froelich, Tyler Yoshizumi, Martin Stephen, Faiza Imtiaz, Khalifa Alhulail, Tejas Dc, Govind Shukla, Benjamin & Shannon Pinder, Srikote Naewchampa, Ex Foedus, Sage Curie, Exal Enrique Cisneros Tuch, Ana Maria, Vignan Velivela, Ibel Wong, Ahmad Hyari, A Hundred Years, eden sher, Travis Wehrman, Minh Tran, Louisa Lee, Kiara Taylor, Hoang Viet, Nathan A. Wright.
Views: 1518960 TED-Ed
Electric Potential: Visualizing Voltage with 3D animations
 
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Shows how voltage can be visualized as electric potential energy. Includes topics such as why the voltage is the same everywhere inside a metal conductor.
PROPAGATION OF ELECTROMAGNETIC WAVES PART 01
 
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For more information: http://www.7activestudio.com [email protected] http://www.7activemedical.com/ [email protected] http://www.sciencetuts.com/ [email protected] Contact: +91- 9700061777, +91- 9100061777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. PROPAGATION OF ELECTROMAGNETIC WAVES:In communication using radio waves, an antenna at the transmitter radiates the Electromagnetic waves EM waves, which travel through the space and reach the receiving antenna at the other end. As the EM wave travels away from the transmitter, the strength of the wave keeps on decreasing. Several factors influence the propagation of EM waves and the path they follow. At this point, it is also important to understand the composition of the earth’s atmosphere as it plays a vital role in the propagation of EM waves. A brief discussion on some useful layers of the atmosphere is given in Table. Ground wave: To radiate signals with high efficiency, the antennas should have a size comparable to the wavelength of the signal at least /4. At longer wavelengths i.e., at lower frequencies, the antennas have large physical size and they are located on or very near to the ground. In standard AM broadcast, ground based vertical towers are generally used as transmitting antennas. For such antennas, ground has a strong influence on the propagation of the signal. The mode of propagation is called surface wave propagation and the wave glides over the surface of the earth. A wave induces current in the ground over which it passes and it is attenuated as a result of absorption of energy by the earth. The attenuation of surface waves increases very rapidly with increase in frequency. The maximum range of coverage depends on the transmitted power and frequency less than a few MHz. Sky waves:In the frequency range from a few MHz up to 30 to 40 MHz, long distance communication can be achieved by ionospheric reflection of radio waves back towards the earth. This mode of propagation is called sky wave propagation and is used by short wave broadcast services. The ionosphere is so called because of the presence of a large number of ions or charged particles. It extends from a height of ~65 Km to about 400 Km above the earth’s surface. Ionisation occurs due to the absorption of the ultraviolet and other high-energy radiation coming from the sun by air molecules. The ionosphere is further subdivided into several layers, the details of which are given in Table. The degree of ionisation varies with the height. The density of atmosphere decreases with height. At great heights the solar radiation is intense but there are few molecules to be ionised. Close to the earth, even though the molecular concentration is very high, the radiation intensity is low so that the ionisation is again low. However, at some intermediate heights, there occurs a peak of ionisation density. The ionospheric layer acts as a reflector for a certain range of frequencies 3 to 30 MHz.Electromagnetic waves of frequencies higher than 30 MHz penetrate the ionosphere and escape. These phenomena are shown in the Figure. The phenomenon of bending of EM waves so that they are diverted towards the earth is similar to total internal reflection in optics.
Views: 191657 7activestudio
8. Electromagnetic Waves in a Vacuum
 
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View the complete OCW resource: http://ocw.mit.edu/resources/res-8-005-vibrations-and-waves-problem-solving-fall-2012/ Instructor: Wit Busza In this session, we show how the properties (wavelength, frequency, amplitude and polarization) of an electromagnetic wave can be concluded from the equation that describes the wave and vice versa. *NOTE: These videos were originally produced as part of a physics course that is no longer available on OCW.* License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 28697 MIT OpenCourseWare
The Quantum Experiment that Broke Reality | Space Time | PBS Digital Studios
 
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The double slit experiment radically changed the way we understand reality. To check out any of the lectures available from The Great Courses Plus go to http://ow.ly/QVaz302duhX and get ready to learn about everything from cooking to calculus. Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g The double slit experiment radically changed the way we understand reality. Find out what the ramifications of this experiment were and how we can use it to better comprehend our universe. Written and hosted by Matt O’Dowd Made by Kornhaber Brown (www.kornhaberbrown.com) Previous Episode https://www.youtube.com/watch?v=eJ2RNBAFLj0 The Planck Length and the Origin of Quantum Mechanics https://www.youtube.com/watch?v=tQSbms5MDvY Veritasium and the Double Slit Experiment https://www.youtube.com/watch?v=GzbKb59my3U Is Quantum Tunneling Faster than Light? https://www.youtube.com/watch?v=-IfmgyXs7z8 Comments by: Jason Blank https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13mhf0rcurtybftb23nf3yalruqvx2dm Deisisase https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13uifuzxlr3xvc1022ly1jo4uijfjhgj04 Bike Jake https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z13mcnhbglncgpbc122wgxsabw31xdvqw04 An Imposter https://www.youtube.com/watch?v=_NqbRcwWwPw&lc=z12hyl5z4lvsjdihn04cgbhbsnnivhbgdqw0k
Views: 2977672 PBS Space Time
Electromagnetic Spectrum: Radio Waves
 
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http://www.facebook.com/ScienceReason ... [email protected]: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- MEASURING THE ELECTROMAGNETIC SPECTRUM The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays. • http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html --- RADIO WAVES Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications. Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight. Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space. Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others. Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates. In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea. • http://en.wikipedia.org/wiki/Radio_waves .
Views: 371170 Best0fScience
How Does Electricity Reach Our Homes? | Animated Fun Facts of Science for Kids | Electricity
 
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Hello kids, ever wondered how electricity travels through those thin wires and reach our houses? We'll help you understand! Like us on Facebook https://www.facebook.com/cinecurry Follow us on Twitter https://twitter.com/cinecurrytweets
Views: 73489 Cine Kids
The Sun | Educational Video for Kids.
 
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Hello friends and welcome to a new Happy Learning video. Today we are going to learn about the most important star in the universe, today we’re going to study the Sun. The sun is a star, an enormous sphere of extremely hot gas which is continuously shining and spinning around. It seems much bigger and brighter than other stars but that is only because our planet is close to it, more so than to any other star. The sun is in the center of our system and that’s why we call it the solar system and all the planets in it revolve around the sun. It has been shining in space for more than 4 and a half billion years! Yup I said B, for Billion and scientists claim it will continue to do so for another 5 billion years! That’s incredible! The sun is composed of gas. The majority of this gas is hydrogen and helium though there is also some carbon, nitrogen and oxygen. It shines so brightly and transmits so much energy because in its interior there are atomic reactions which turn the hydrogen into helium. To give you an idea, the surface temperature on the sun is 5.800 degrees celsius. In only one second, more energy is released from the sun than that which has been consumed by all humanity so far. Just in one second! Compared to Earth, the sun is enormous. One million three hundred thousand planets the size of our Earth can fit inside the sun. It is also very far from our planet. Do you know how long it would take us to get to the sun? Well, when taking into consideration that the sun is 150 million kilometers away, if we were to travel from the Earth to the sun by car at a speed of 100kms an hour, we would take… 170 years to get there! Though the light that the sun emits, doesn’t take that long to get to the Earth. It takes only 8 minutes for the light to travel from moment it leaves the sun till it reaches our planet. That’s 300 million kms per second! It’s absolutely mind-blowing! It can circle the world 7 times in one second. There is most definitely nothing faster than light. So now we have learnt a little more about the sun, our star and about light. I hope you found it all very interesting. Goodbye friends oh and don’t forget to subscribe to our web Happy learning TV.
Views: 138272 Happy Learning English
Sound and Light  travels in Waves
 
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The movement of the cellotape is the direction of the propagation of the waves. Oscilation of beeds indicates the direction of particles in the media. Only energy is transmitted through particles in the direction of waves
Views: 29 bhama rajan
Professor Brian Cox Lecture on the universe
 
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A lecture by Brian Cox on how the universe was created. If you like this video please help me grow my channel by hitting that like button. Thanks guys! Oh & dont forget all comments are welcome so leave one, or even ask a question & answer a few
Views: 1227932 bigrich3849
Is Time Travel Possible? | The Science of Doctor Who | Doctor Who | BBC
 
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Is Time Travel really Possible? In this clip Professor Brian Cox - a confirmed Doctor Who fan - undertakes an experiment with a light showing that time moves faster for a stationary clock than a moving clock, which appears to move more slowly over the same length of time. His conclusion is that time travel is possible, but only into the future! Subscribe here for more exclusive Doctor Who clips and content http://bit.ly/SubscribeToDoctorWho The Brand New Doctor Who Website - http://www.doctorwho.tv Doctor Who YouTube Channel http://www.youtube.com/user/doctorwho Doctor Who Facebook: https://www.facebook.com/DoctorWho Doctor Who Twitter https://twitter.com/bbcdoctorwho This is a channel from BBC Studios, who help fund new BBC programmes.
Views: 556173 Doctor Who
How Does The Sound Energy Travel?
 
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And the medium can be any series of interconnected and interactive particles. 2 (force, motion, energy sound) when sound moves through matter (solid, liquid, or a gas), the molecules of the matter move what is sound? 2. You can't see it but air is made up of tiny little bits called particles. Sound when molecules in the air bounce against your ear drum with enough energy, we call that hearing!. Sound vibrations travel in a wave pattern, and we call these sound waves. How does sound move? 3. Sound the science of waves, how they travel, we use them explainthatstuff sound. Googleusercontent search. In sound waves, energy is transferred through vibration of air particles or a solid which the travels this means therefore, that there no force attraction between gas. So it stands to reason that sound is a kind of energy created when something vibrates. As the amplitude of light travels as transverse waves and can travel through a vacuum. List and discuss the different types of waves that exist. 20 feb 2018 water waves shake energy over the surface of the sea, while sound waves thump energy through the body of the air. How about water? Can you hear sound travel under a solid? move through solid object? Engineers want to know if can solids, understanding standard 5. Sound the science of waves, how they travel, we use them. How does sound travel? Tellmewhyfacts. Sound waves travel faster and more effectively in liquids than air even solids 7 nov 2017 do you think sound energy can through air? Of course it can! that is how travels when talk to a friend. How does sound energy travel? . Sound can travel through all forms of matter, but it travels better most solids than liquids, and liquids gases 14 jun 20172 may 2011 'wave' is a common term for number different ways in which energy transferred electromagnetic waves, vibrations electric magnetic fields. What is the difference between a compression wave and vibration. Sound energy cannot move as quickly when the molecules are not in contact with each other. They're also called longitudinal waves because the air vibrates along same direction as wave travels recall that in waves, vibrations move a parallel to which. How does the sound energy travel? Youtube. Sound waves are travelling vibrations of particles in media such as air, water or metal. But it seems that in some circumstances, sound can jump between objects a vacuum after all. Sound can also travel through other matterdo you hear that? Your tapping caused waves to the material of table and then so sound cannot space because there is no matter for vibrations work in 20 dec 2017 any substance, including gases (such as air), liquids water), solids seafloor). It is possible to see the wave bounce back (an echo) and of course that parts spring (representing molecules) do not move along with but merely this difference in speeds enables us appreciate sound does take time travel. How does sound travel? Lesson for kids video & lesson how travels energy travel in
Views: 31 tell sparky
Accelerating Charges Emit Electromagnetic Waves - "Light" - Radio Antennas! | Doc Physics
 
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Every charge that accelerates emits light that indicates how it has been accelerating. This can be used for radio and other long-range communications!
Views: 164045 Doc Schuster
How Do Satellites Get & Stay in Orbit?
 
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SciShow Space takes you into Low Earth Orbit to explain how artificial satellites get up there and stay there -- at least for a while. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://science.howstuffworks.com/satellite.htm http://science.howstuffworks.com/dictionary/astronomy-terms/artificial-satellite-info1.htm http://www.universetoday.com/93077/how-satellites-stay-in-orbit/ http://www.universetoday.com/42198/how-many-satellites-in-space/ http://www.nasa.gov/pdf/475144main_LP7-SatelliteOrbits_508.pdf http://www.nasa.gov/audience/forstudents/5-8/features/what-is-orbit-58.html#.U0hebl5wOFc http://www.nasa.gov/audience/forstudents/5-8/features/what-is-a-satellite-58.html#.U0hjdV5wOFc https://www.spacetelescope.org/about/history/sm3b_a_little_boost/ http://www.deepastronomy.com/how-the-hubble-space-telescope-will-die-video.html http://youtu.be/NpHOlmNtFTQ http://www.slate.com/articles/news_and_politics/explainer/2005/04/where_satellites_go_when_they_die.html http://newsfeed.time.com/2011/09/22/satellite-falling-to-earth-nasa-scientist-puts-it-into-perspective/
Views: 679670 SciShow Space
Is Every Electron in the Universe The Same Electron? | Answers With Joe
 
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The One Electron Universe theory is exactly what it sounds like - the idea that every electron in the universe is the same electron. How could this be possible? Support me on Patreon! http://www.patreon.com/answerswithjoe Follow me at all my places! Instagram: https://instagram.com/answerswithjoe Snapchat: https://www.snapchat.com/add/answerswithjoe Facebook: http://www.facebook.com/answerswithjoe Twitter: https://www.twitter.com/answerswithjoe Get cool shirts at http://www.answerswithjoe.com/shirts LINKS LINKS LINKS https://io9.gizmodo.com/5876966/what-if-every-electron-in-the-universe-was-all-the-same-exact-particle PBS Spacetime https://youtu.be/9dqtW9MslFk TRANSCRIPT: One Electron Universe theory is exactly what it sounds like, it’s the theory that every electron in the universe is the same electron. If that sounds crazy, that’s because it is. The first rule of this video is to not take this too seriously, it’s really more of a thought experiment. It was first proposed by physicist John Archibald Wheeler in 1940 in a phone call to Richard Feynman, who eventually popularized the idea. Wheeler had been working on a problem that had plagued physicists for decades, which was the question of why all electrons have the same mass and the same spin. He considered the fact that electrons always move in a certain direction in an electromagnetic field due to their negative charge. Similarly, a positively charged electron, or a positron, would travel the opposite direction because of its positive charge. So he imagined if you recorded the motion of an electron on video and then played it backwards, it would behave just like a positron. In other words, if an electron were traveling backwards in time, it would basically be a positron. This idea of an electron traveling backwards and forwards in time took over. And he began to theorize that in such a case, the same electron would cross our timeline multiple times - and appear to us as the same electron. I have a feeling I may be losing some of you, let me grab a prop… (step off screen. Construction SFX. Come back with board) Okay, I put this board together to help explain this, it took everything I learned from engineering school... (BLACK SCREEN) Text: (Joe has never taken a single engineering class) (CAM A) And I spent a lot of time and money on this… (BLACK SCREEN) Text: ($6.79 at Home Depot) (CAM A) But I think this will help explain it. So on this board, the vertical axis is the progression of time and the black line is where we are right now, so technically, this line is moving slowly upward, but let’s ignore that for now. And this string represents an electron (wind the string across the nails) traveling back and forth across time. It travels one direction until a force acts on it and then it travels the other direction. Maybe the force acting on it is the beginning and the end of time in the universe. Who knows? But the point is it goes back and forth over and over again, crossing over our now line. (tie off the end) So what does this mean to us? Well, think back to that Flatland analogy and how they could only see in one plane, well we are the flatlanders of time if you will, and even though this electron has spanned the timeline of the universe an infinite number of times, we can only see it when it crosses our path, which in this case is 1, 2, 3 (count) 8 times. In actuality, this would be closer to infinity, but I only have so much string. So to us, we see an infinite number of electrons doing their electron thing, when in reality, they are all one electron all along. Meaning that you and I and everybody we know and everything we can touch and every planet and star and galaxy in the universe is made up of the exact same particles. Now, if you’re wondering how Wheeler may have come up with such a crazy idea, it might be because he was also the guy behind the delayed choice experiment. I talked about this way back in my double slit experiment video but to greatly simplify this, the delayed choice experiment was a variation on the double slit experiment that allows us to know whether a photon’s waveform collapses before it is observed. In other words, it behaves differently according to events that have not yet happened. Meaning quantum effects are not necessarily bound by time. This might also explain why we see quantum particles blink in and out of existence and cross physical barriers they’re not supposed to. Because they’re sliding back and forth across our timeline.
Views: 267250 Joe Scott
Why Is The Sound Wave Called A Longitudinal Wave?
 
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Mechanical longitudinal waves are also called compressional or compression waves, include sound (vibrations in pressure, particle of take a slinky. Short explanation of longitudinal waves and example problems found in. Why is sound called longitudinal waves answers and transverse wave motion penn state acousticstransverse & definition examples video. Meritnation meritnation sound wave called longitudinal 1729550 url? Q webcache. Why is sound wave called a longitudinal wave? From science wikipedia. Another type of wave is called transverse class 9 science sound propagates in the medium as a series compressions and rarefactions. In the waves individual particles of medium move in a direction parallel to longitudinal are which displacement is same as, or opposite to, propagation wave. Mark a dot on it this is how sound wave also travels. Physics why is a sound wave longitudinal wave? Youtube. Longitudinal waves simply means if the particles in a wave move same direction as of propagation 30 jan 2012 it is called longitudinal because medium vibrate 5 apr 2016 sound produced by compressions and rarefactions air. Why is sound wave called a longitudinal wave? Forum byju's. But, longitudinal waves are just as which move particles in the direction of wave motion. The air particles vibrate parallel to longitudnal waves travel in the form of compression and rarefactions. Longitudinal wave, sound waves, intensity. Sound as a longitudinal wave the physics classroom. These waves are called longitudinal wave consisting of a periodic disturbance or vibration that takes place in the same these body. Longitudinal waves are which propagate parallel to the direction of propagation wave. Sound travels in this manner and hence sound waves are air (and any fluid medium) longitudinal because particles of the medium through which is transported vibrate parallel to direction that wave moves on surface water move, or up down, so transverse. I could say longitudinal yes. Sound waves are longitudinal wavestrue a sound wave is because it compresses the air and waves, sometimes called compression oscillate in direction of propagation. Why are sound waves called longitudinal waves? Quora. An example of a longitudinal wave is sound there are two basic types motion for mechanical waves version the mathematica notebook ' waves' by mats bengtsson all produced vibrating particles that form. Why sound wave are called as longitudinal. Googleusercontent search. Sound waves are longitudinal sound everonn cbse why is wave called a wave? Britannica. In this kind of wave the vibrations particles are in same direction as what comes to mind when you think a wave? Chances your mental image takes form transverse. Why sound wave are called as longitudinal a the physics classroom. Are sound waves transverse or longitudinal waves? Youtube. In the two fundamental types of wave motion can occur longitudinal, like a sound or ion acoustic wave, in which particles medium oscillate about their mean positions direction propagation is called longitudinal 14 jun 2017.
Views: 429 Cynthia Cynthia
Transverse Wave
 
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Particles vibrate from side to side at right angles to the direction the wave travels
Views: 37 teacherforde
3 Hours of Soothing Sounds of Ocean Waves for Relaxation, Yoga, Meditation, Study, Reading, Sleep
 
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3 Hours of Soothing Sounds of Ocean Waves for Relaxation, Yoga, Meditation, Study, Reading, Sleep ► https://youtu.be/xb4U5s3JaWA SUBSCRIBE ► PUT LIKE ► SHARE ► COMMENT ► THNX Friends, we try to create not only beautiful music, but also other things that may be useful to you. And we do it with the highest quality. Today we publish 3 hours of soothing sounds of ocean waves for relaxation, yoga, meditation, sleep, study, reading. We carefully looked over, processed and recorded the best textures of the sounds of the ocean. Based on them, we have compiled the best 3-hour mix of the sounds of the waves and the ocean. This mix is perfect as a background for your tasks. Enjoy! ;) Ocean Waves One of the things many people love about the ocean is the waves. People love to play in the waves, surf the waves, and the sound of the waves crashing on the beach. What causes ocean waves? Ocean waves are caused by wind moving across the surface of the water. The friction between the air molecules and the water molecules causes energy to be transferred from the wind to the water. This causes waves to form. What is a wave? In science, a wave is defined as a transfer of energy. Ocean waves are called mechanical waves because they travel through a medium. The medium in this case is water. The water doesn't actually travel with the wave, but only moves up and down. It's the energy that travels with the wave. What are swells? Swells are rolling waves that travel long distances through the ocean. They are not generated by the local wind, but by distant storms. Swells are typically smooth waves, not choppy like wind waves. A swell is measured from the crest (top) to the trough (bottom). Ocean Currents An ocean current is a continuous flow of water in the ocean. Some currents are surface currents while other currents are much deeper flowing hundreds of feet below the surface of the water. What causes ocean currents? Surface currents are usually caused by the wind. As the wind changes, the current may change as well. Currents are also influenced by the rotation of the Earth called the Coriolis effect. This causes currents to flow clockwise in the northern hemisphere and counter clockwise in the southern hemisphere. Deep ocean currents are caused by a number of things including changes in the temperature, salinity (how salty the water is), and density of the water. One other factor impacting ocean currents is the gravitational pull of the Moon and the Sun. Do currents impact the climate? Ocean currents can have a significant impact on climate. In some areas warm water is moved from the equator to a colder region causing the region to be warmer. One example of this is the Gulfstream current. It pulls warm water from the equator to the coast of Western Europe. As a result, areas such as the United Kingdom are typically much warmer than areas at the same northern latitude in North America. Interesting Facts about Ocean Waves and Currents ► The tallest wave ever measured was 1719 feet at Lituya Bay, Alaska. ► The tallest wave recorded in the open ocean was 95 feet during a storm near Scotland. ► Surface currents are important to ships as they can make it easy or difficult to travel depending on the direction of the current. ► Some marine animals take advantage of currents to migrate thousands of miles to and from breeding grounds. ► Ben Franklin published a map of the Gulf Stream in 1769. =============== And don't forget to put Likes on FB! ► http://bit.ly/yourrelaxfb Follow us on Twitter! ► https://twitter.com/YouRRelaxMusic Subscribe to us in the Telegram ► spiritualsense =============== © This music is reserved by all rights presented by the law of united states of America. ©
How Does A Microwave Travel?
 
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They don't require a medium like air or water to travel through) i wanted know if this is true and would sss help radio wave faster in sea water, waves too far but microwaves might do better 10 jun 2014 microwave ovens cook food incredibly fast, warming up refrigerated leftovers minutes less. They are produced when an alternating current flows in aerial and they spread out travel through the atmosphere electromagnetic spectrum. However, microwave 14 jul 2009 so it is not thought to damage dna of living things, the way x and gamma rays do. Hope it helps the video and text below describes some of characteristics uses radio waves microwaves. 45 ghz and a to the direction of travel at this frequency, microwaves are effectively emitted. That's how they can travel through vacuum. In a vacuum, all electromagnetic waves travel at approximately 3 x 10 8 m s the fastest speed possible. What distance does these radiation waves travel for and how long do they last after microwave also passes through glass plastic, which allows it to tupperware heat up the food inside. Radio waves and microwaves math is fun. Heckert, p 2007, how do microwave ovens work? , suite101, viewed 31 in a oven, magnetron generates and shoots out beam of the microwaves bounce off metal waves travel through plastic, glass, or paper radio are very important to us for communication. Microwave oven dangers what you need to know electricsense. Microwave radiation safety microwave danger ovens. Microwaves are very short waves of electromagnetic energy that travel at the because lower frequencies and reduced energy, it does not have same microwaves with a frequency about 2. Physics forums the microwave energy what it is and notmicrowaves. Microwaves are electromagnetic waves which do not need a medium to travel. Radio waves & microwaves bbc standard grade bitesize physics using the spectrum microwave ovens radiation travels further than you think do xrays, uv, ir, microwave, and radio all travel at transmission wikipedia. But how does this great invention work? Here 7 apr 2010 microwave ovens use electromagnetic fields to heat food. I understand that they are not separate entities per se, but rather different wavelengths of the electromagnetic spectrum, do difference microwave transmission is information or energy by radio waves because travel in narrow beams confined to a line sight path from one antenna this audio file was created revision 'microwave transmission' article dated 2005 09 22, and does reflect microwaves form radiation, similar light, television, x rays, etc. Sep 2016 although heat is produced directly in the food, microwave ovens do not cook food from 'inside out. When thick foods are cooked, the outer 2)how does a microwave oven heat up food? Radiation, can propagate through space (i. Radio waves are the lowest energy, frequency and longest wavelength electromagnetic. Microwaves can travel through glass and plastic penetrate about a centimeter into food (depending on the food
Views: 13 Trix Trix
The Sun’s surprising movement across the sky - Gordon Williamson
 
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View full lesson: http://ed.ted.com/lessons/the-sun-s-surprising-movement-across-the-sky-gordon-williamson Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the photos on top of each other. What would the sun look like in that combined image? A stationary dot? A circular path? Neither. Oddly enough, it makes a ‘figure 8’ pattern, known as the Sun’s analemma. Gordon Williamson explains why. Lesson by Gordon Williamson, animation by TED-Ed.
Views: 227020 TED-Ed
Symphony of Science - Secret of the Stars
 
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mp3: http://melodysheep.bandcamp.com // A musical celebration of E=MC squared and Einstein's theory of relativity. Featuring Michio Kaku, Brian Cox, Neil deGrasse Tyson, Brian Greene and Lisa Randall. Subscribe for more videos! youtube.com/melodysheep http://symphonyofscience.com Sources: Through the Wormhole Einstein's Big Idea (NOVA) The Elegant Universe (NOVA) Wonders of the Solar System (BBC) Einstein's Equation of Life and Death (BBC) What Time Is It (BBC) Einstein (History) The Universe in a Nutshell Relativity and the Twin Paradox What Lies Beyond Our Own Space-Time Continuum The Universe - Brian Cox lecture Lyrics: Say, do you like mystery stories? Well we have one for you. The concept: relativity. That strange fantastic relationship between time, distance, and mass. Before we're finished, I think you'll agree that truth is stranger than the strangest fiction. Why do the stars shine? Why does the galaxy light up? E equals MC squared That is the engine that lights up the stars Energy turns into mass E equals MC squared - That is the secret of the stars Now listen carefully: The faster you move THe heavier you get The energy of motion turns into M, your mass Energy of motion Energy equals Mass times the speed of light squared An awful lot of energy For a tiny amount of mass Light travels at the same speed No matter how you look at it No matter how I move, relative to you, Light travels at the same speed No matter who is doing the measurement And no matter what direction you are moving The speed of light is the same No matter what direction, or how fast As you travel faster Time slows down Everything slows down Time slows down when you move Time passes at a different rate Clocks run slow It's a monumental shift in how we see the world The beauty, the majesty, The power of the universe Into a single equation (refrain) It's a beautiful piece of science It's a beautifuly elegant theory It's a beautiful piece of science A planet like the Earth is kept in orbit Because it follows curves In the spatial fabric caused By the sun's presence Space and time are bent by stars and planets As things move through this curved space, they bend Now all of this is illustration of the fact that time and space are linked together. As you're moving through bent and curved space and time, You feel like you feel a force (x2) That force is gravity (refrain) That is the secret of the stars Help us caption & translate this video! https://amara.org/v/CoHM/
Views: 2072439 melodysheep
Introduction to Electricity
 
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http://hilaroad.com/video/ This video explains electricity as the flow of atomic particles called electrons. Animations demonstrate electron flow. Batteries are described as chemical devices designed to create electron flow. Terms covered in video include Volts, current and Amperes.
Views: 1570395 ScienceOnline
How Are Tsunamis Formed?
 
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What’s the difference between a tsunami and a normal wave? What makes them so deadly? Learn more at HowStuffWorks.com: http://science.howstuffworks.com/nature/natural-disasters/tsunami.htm Share on Facebook: http://goo.gl/k3qrO6 Share on Twitter: http://goo.gl/RxK3Mz Subscribe: http://goo.gl/ZYI7Gt Visit our site: http://www.brainstuffshow.com The word tsunami comes from two Japanese words: tsu (harbor) and nami (waves). Basically, it means when these waves hit the harbor, brother, you’d better look out! Tsunamis are basically giant waves but there are some differences between them and normal waves. Any wave – whether a tsunami or a regular joe-schmo wave – is simply an energy carrier. A wave isn’t the movement of water, but rather the movement of energy through water. What initiates this energy transfer and the amount of energy they pack are two things that differentiate tsunamis from normal waves. The typical wave on the surface of the ocean is propagated by blowing wind. (Well, Buckminster Fuller pointed out the wind sucks, it doesn’t blow, but that’s perhaps for a different episode.) When the wind whips up the surface it gets more and more traction, which builds a wave that travels inward toward the shore. Tsunamis on the other hand propagate from underwater disturbances like a rockslide, earthquake or volcano. These are called tsunamigenic events. Think of a massive pile of rocks or a faultline along two tectonic plates as possessing potential energy. There’s a ton of energy stored in them. But when that pile of rocks collapses or one plate along the fault line slips beneath another, that potential energy is unleashed. It becomes kinetic energy and when we’re talking earthquakes and rock slides the amount of kinetic energy released can be massive. This energy is transferred outward from the point of origin in much the same way that a pebble tossed into a pond will create a series of ripples. This kinetic energy takes the form of waves radiating away from the underwater rockslide, volcano or earthquake and the waves carry this enormous amount of energy through the water at hundreds of miles an hour. If you’re watching it overhead in the deep ocean, a tsunami wave will be only about 3 or so feet tall. But what you see, at the risk of mixing metaphors, is only the tip of the iceberg. As the tsunami encounters shallower water, the upward sloping land compresses the energy of the wave, both slowing its velocity and increasing its height above sea level tremendously. Contrary to common misconception, a tsunami is actually a series of waves (remember, like the ripples from the stone thrown into a pond). As they reach the shore and slow down, waves in the rear catch up and the whole wave train compresses, kind of like squeezing an accordion. A person on the shore would see the tide pulled out and then suddenly reintroduced as a massive series of tsunami waves up to 100 feet high and traveling 30 miles per hour inland. The explosion of energy released by the rock slide or earthquake hundreds or thousands of miles away has reached the shore, bringing widespread destruction, death and flooding. Since they pose such a danger, scientists are trying to find ways to alleviate tsunamis. The problem is, once tsunamis have started, they can’t be stopped. The best researchers can hope to do is predict their path, power and formation in order to warn coastal areas to clear out as soon as possible and save lives. SOURCES: http://science.howstuffworks.com/nature/natural-disasters/tsunami.htm/printable http://science.howstuffworks.com/nature/natural-disasters/earthquake.htm/printable http://www.nasa.gov/home/hqnews/2010/jun/HQ_10-139_Tsunami_Prediction_System.html
Native American Flute Music: Meditation Music for Shamanic Astral Projection, Healing Music
 
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Native American Flute Music: Meditation Music for Shamanic Astral Projection, Healing Music Shamanism is a system for psychic, emotional, and spiritual healing and for exploration, discovery, and knowledge gathering about non-material worlds and states of mind. Shamanism is a "technique of ecstasy" in which the spirit of the shaman leaves the body and travels to communicate with spirit helpers and other beings for the purpose of obtaining knowledge, power, or healing. Shamanic Astral Projection or Shamanic Journeying is an altered state of consciousness wherein you enter a realm called non-ordinary reality. By journeying you can gather knowledge and perform healing in ways that are not accessible in ordinary waking reality. How does shamanism work? Some people think that in shamanic healing journeying, the spirit leaves the body and a person is being healed by spirit helpers. Others think that shamanic journeying allows access to one's own intuition, which may otherwise be drowned out by the prattle of everyday thinking or by anxiety; and that it is a way of engaging a person's subconscious desires for healing. Shamanic healing may not cure physical or psychological illness, but it may help one gain psychic energy that will allow one better to handle illness. Shamanic healing therefore is best used in conjunction with other treatments, not as a substitute for them. Connection with a Power Animal A power animal protects you physically and provides you with emotional support, wisdom, and vital energy. Some people think a power animal is a spirit being that stays with you because it cares for you and enjoys being able to experience life in a physical body. Others think a power animal is a symbol for one's subconscious wisdom. Almost everybody has a power animal; some have several. (Perhaps you had an "invisible animal friend" as a child or have always been fascinated with a particular kind of animal. This animal may be your Power Animal). A person may, in the course of life, lose contact with the power animal, thereby losing the animal's protection, wisdom, and energy. If you lose contact with your Power Animal, you may feel dispirited, or you may become sick easily. The Shamanic Astral Projection technique of Power Animal Retrieval can restore a person's connection to a Power Animal. A person can also journey to find his or her own Power Animal. To maintain a connection with your Power Animal, take the time to learn about your animal, learn to feel its presence, communicate with it, and honor it by doing things that it enjoys. Free flow of emotional and physical energy Health requires a free flow of energy that one can use to accomplish one's desires in the world. But one's energy can become blocked in various ways. People who have lost parts of their life essence, who have been ill, who have lost connection with a Power Animal, or who are regularly exposed to emotionally stressful situations are vulnerable to intrusions or "psychic infections" that block a person's connection with self or drain a person's energy. An intrusion can be thought of either as a foreign energy being that takes up residence in a person's psychic body (a psychic infection), or as a psychic structure (an emotional wall or barrier) that a person built to keep herself safe from harm, but that now is blocking some of his/her energy expression. A person with an intrusion might feel drained or ill, might have aches and pains, might have nightmares or other fears. A shamanic healer can find and remove intrusions and barriers in a healing ritual called extraction. A sense of purpose A sense of purpose is necessary to happiness. The person who loves and cares about the world and fellow beings, who wants to make some small part of the universe a better place, has a sense of purpose. A person can find a sense of purpose in life by seeking knowledge and direction through shamanic journeys, divinations, and rituals. One can do this alone, or with a group of people engaged in similar quests. A shamanic healer or counselor can't find another person's purpose, but can help one seek and interpret information. === SUBSCRIBE! NEW VIDEOS COMING SOON http://www.youtube.com/subscription_center?add_user=numeditationmusic NUMEDITATIONMUSIC youtube channel https://www.youtube.com/user/numeditationmusic LET'S CONNECT! Nu Meditation Music --https://plus.google.com/+numeditationmusic --https://www.facebook.com/numeditationmusic --https://twitter.com/NuMeditationMus
Views: 8956218 Nu Meditation Music
What Is The Speed of Dark?
 
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twitter: http://www.twitter.com/tweetsauce instagram: http://www.instagram.com/electricpants facebook: http://www.facebook.com/VsauceGaming SOURCES BELOW: this is the video where I talk about THE SPEED OF PUSH: https://www.youtube.com/watch?v=Do1lm9IevYE Big thanks to Martin Archer for help with this episode: http://www.martinarcher.co.uk/ And thanks to Guy Larsen for his shadow magic: https://twitter.com/guylar music by http://www.YouTube.com/JakeChudnow and http://www.audionetwork.com shadows faster than light: http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/FTL.html#3 http://physics.stackexchange.com/questions/63434/could-the-shadow-move-with-faster-than-light-speed http://www.madsci.org/posts/archives/2000-02/950834634.Ph.q.html making the moon brighter: http://what-if.xkcd.com/13/ sunset and earth’s shadow and belt of venus in single pics: http://apod.nasa.gov/apod/ap131024.html http://apod.nasa.gov/apod/ap100729.html amounts of evening-types in a city: http://weatherspark.com/averages/33125/Honolulu-Hawaii-United-States superluminal scissors: http://math.ucr.edu/home/baez/physics/Relativity/SR/scissors.html http://boards.straightdope.com/sdmb/archive/index.php/t-69757.html wave animations: http://www.ablongman.com/mullin/AnimationPages/FigsI-19&20.html http://www.acs.psu.edu/drussell/Demos/SWR/SWR.html http://resource.isvr.soton.ac.uk/spcg/tutorial/tutorial/Tutorial_files/Web-inter-superp.htm phase velocity vs. group velocity: http://resource.isvr.soton.ac.uk/spcg/tutorial/tutorial/Tutorial_files/Web-further-dispersive.htm faster than light dark patches: http://www.askamathematician.com/2013/02/q-is-darkness-a-wave-the-way-light-is-a-wave-what-is-the-speed-of-dark/ http://www.physicsclassroom.com/class/light/Lesson-3/The-Path-Difference make a light interference pattern at home: http://www.exploratorium.edu/snacks/diffraction/ http://www.instructables.com/id/How-to-perform-Interference-and-Diffranction-at-Ho/ the speed of ignorance: http://www.brainpickings.org/index.php/2012/04/02/stuart-firestein-ignorance-science/ http://philosophicalfallibilism.blogspot.com/2009_03_20_archive.html http://kk.org/thetechnium/2008/10/the-expansion-o/ http://louisecharente.wordpress.com/2013/10/24/the-discovery-of-ignorance/ Dunning-Kruger: http://www.huffingtonpost.com/david-macaray/the-dunningkruger-effect_b_4476166.html http://en.wikipedia.org/wiki/McArthur_Wheeler “animalcules”: http://www.leben.us/index.php/component/content/article/59-volume-3-issue-4/236-antoni-van-leeuwenhoeks-amazing-little-animalcules
Views: 13098528 Vsauce
Amazing Water & Sound Experiment #2
 
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Add me on Facebook. (click LIKE on Facebook to add me) https://www.facebook.com/158773774166995 Download the song in this video Song Name: Monolith iTunes: https://itunes.apple.com/us/album/monolith-single/id596457486 Amazon: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=brusspup+monolith Ever since I created the first version of this video a year ago I've been wanting to try it again with more water and better lighting / footage. This is a really fun project and when you first see the results, chances are your jaw will drop. The main thing to keep in mind for this project is that you need a camera that shoots 24 fps. The effect that you are seeing can't be seen with the naked eye. The effect only works through the camera. However, there is a version of the project you can do where the effect would be visible with the naked eye. For that project, you'd have to use a strobe light. For this project you'll need: A powered speaker Water source Soft rubber hose Tone generating software 24 fps camera Tape. Run the rubber hose down past the speaker so that the hose touches the speaker. Leave about 1 or 2 inches of the hose hanging past the bottom of the speaker. Secure the hose to the speaker with tape or whatever works best for you. The goal is to make sure the hose is touching the actual speaker so that when the speaker produces sound (vibrates) it will vibrate the hose. Set up your camera and switch it to 24 fps. The higher the shutter speed the better the results. But also keep in the mind that the higher your shutter speed, the more light you need. Run an audio cable from your computer to the speaker. Set your tone generating software to 24hz and hit play.Turn on the water. Now look through the camera and watch the magic begin. If you want the water to look like it's moving backward set the frequency to 23hz. If you want to look like it's moving forward in slow motion set it to 25hz. Have fun!
Views: 14715077 brusspup

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