Search results “Electricity travels through the”
Flow of Electricity through a Circuit - CBSE 6
In this video, we will understand how Electricity(Electric Current) flows through a Simple Circuit. This may be a slightly advanced video for sixth graders, but we are sure that you'll still end up learning something from this! To access the entire course for free, do visit our website here: https://DontMemorise.com Don’t Memorise brings learning to life through its captivating FREE educational videos. To Know More, visit https://DontMemorise.com New videos every week. To stay updated, subscribe to our YouTube channel : http://bit.ly/DontMemoriseYouTube Register on our website to gain access to all videos and quizzes: http://bit.ly/DontMemoriseRegister Subscribe to our Newsletter: http://bit.ly/DontMemoriseNewsLetter Join us on Facebook: http://bit.ly/DontMemoriseFacebook Follow us on Twitter: https://twitter.com/dontmemorise Follow us : http://bit.ly/DontMemoriseBlog
Views: 23560 Don't Memorise
Stay safe in the workplace - Part 1
Electric shock affects the human body in three ways. It can interfere with the function of the heart, it can damage body tissue, and it can cause involuntary muscular contractions. The bodies functions are regulated by minute electrical impulses in the nervous system.  The reason the heart muscle beats is because and electrical signal initiates the contraction. An electric shock can interfere with this signal causing fibrillation that is a disruption to the heart rhythm. The damage electrical current causes to nerves and body tissue often goes unseen, however severe electric shock leaves obvious signs in the form of burns. When an electric current passes through the body it takes the path of least resistance and has both an entry and an exit point. The bodies resistance causes heating often resulting in excessive external burns as well as internal nerve and tissue damage. Electric shock causes muscles to go into contraction Currents above 10 milliamps can lock the muscles in a contracted position making it impossible to release an electrified object. Conversely, contractions to other muscle groups may violently propel the victim away leading to trauma injuries. When the body becomes part of an electrical path, the severity of the shock depends on three elements. The path of the current, the amount of the current, and the time in contact with the current.  The most dangerous path for electricity travelling through the body is for it to pass through the heart. As little as 50 milliamps of current will trigger cardiac arrest.  The real danger of electric shock is not voltage, but amperage or the amount of current. As the amount of current rises so does the damage to the body. Symptoms include severe burns, respiratory paralysis, cardiac arrest and internal organ damage. The severity of injury is also dependent upon duration, the time the current passes through the body. For example 1/10th of an amp passing through the body for just two seconds is enough to cause death. There is no such thing as a mild electric shock. All electric shocks have the potential to kill. Source: www.comcare.gov.au
Views: 29473 A-Grade Test and Tag
Don't Mix Electricity And Water!
Why do people say you shouldn't mix electricity with water? What happens if you do? Let’s find out :) Neon Sign: http://amzn.to/2nhSqSJ High-Voltage Generator: http://amzn.to/2mC9DZY 18 Gauge Wire: http://amzn.to/2n2u3Xy Plasma Ball: http://amzn.to/2n2KYJt Martini Glasses: http://amzn.to/2nzjiQf Endcard Links: Cozmo the Robot: https://goo.gl/oW3Y8D Metal Foundary Update: https://goo.gl/HMvlbo Start a Fire with a Pencil: https://goo.gl/2spVqX Vacuum Forming Play Buttons: https://goo.gl/rVUT3R Business Inquiries: For business and sponsorship inquiries please contact us directly: https://www.youtube.com/thekingofrandom/about See What Else I’m Up To: Instagram: https://goo.gl/C0Q1YU Facebook: http://bit.ly/FBTheKingOfRandom Pinterest: http://bit.ly/pingrant Song: Rob Gasser - Ricochet [NCS Release] Music provided by NoCopyrightSounds. Video: https://youtu.be/T4Gq9pkToS8 Download: http://http://ncs.io/Ricochet WARNING: This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Have fun, but always think ahead, and remember that every project you try is at YOUR OWN RISK.
Views: 9834374 The King of Random
Electric Potential: Visualizing Voltage with 3D animations
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.
How Does Electricity Reach Our Homes? | Animated Fun Facts of Science for Kids | Electricity
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: 80234 Cine Kids
How Fast is an Electron and Electricity
How fast is an electron in a wire and how fast is electricity? An electron moves surprisingly slow, slower than a snail, while electricity moves at near the speed of light. Electrons move at what's called the drift velocity. This video illustrates all this in an entertaining and informative way. Enjoy! This video has correct English captions. Click on the CC button at the bottom of the video to see them. For "How Radiation Works - Americium 241, Alpha Particles and Gamma Rays", see: http://youtu.be/aJkx6hAD-4E For "How to make solar cells (DIY/homemade solar cell)", see: http://youtu.be/g5Edw99PgzQ For "Fresnel lens - what is it, testing focal length, solar heat generated", see: http://youtu.be/11n0ZaZMj3A To follow me on Twitter: https://twitter.com/#!/RimStarz http://rimstar.org 3D modelling and animation done using Blender 2.63. Original Earth image from NASA/courtesy of nasaimages.org.
Views: 259641 RimstarOrg
Electrical Grid 101 : All you need to know !
Join the movement www.studentenergy.org An electrical grid is an interconnected network for delivering electricity from producers to consumers for example to run your electric griddle and other home appliances. It consists of generating stations that produce electrical power, high voltage transmission lines that carry powerfrom distant sources to demand centers, and distribution lines that connect individual customers Power stations may be located near a fuel source, at a dam site, or to take advantage of renewable energy sources, and are often located away from heavily populated areas. They are usually quite large to take advantage of economies of scale. The electric power which is generated is stepped up to a higher voltage at which it connects to the electric power transmission network. The bulk power transmission network will move the power long distances, sometimes across international boundaries, until it reaches its wholesale customer (usually the company that owns the local electric power distribution network). On arrival at a substation, the power will be stepped down from a transmission level voltage to a distribution level voltage. As it exits the substation, it enters the distribution wiring. Finally, upon arrival at the service location, the power is stepped down again from the distribution voltage to the required service voltage(s).
Views: 172120 Engineering World
The journey of electricity
Ever wondered how electricity gets into your home so you can play the computer or make some toast? Join Mike Sparks on the electrical journey!
Views: 16750 EnergexLtd
Electrical conductivity with salt water
#ElectricExperimentsRoobert33 This experiment is a demonstration, it serves to understand how the salt dissolved in water facilitates an optimum condition for the passage of the current between the two electrodes. The working voltage for this experiment must be 230 volts DC or AC. MATERIALS: A light bulb 500W 230V or 230V 100W 5 bulbs in parallel between them ..Two iron nails or other conductive metal. glass tray.Water and salt.Two electric wires.https://www.youtube.com/channel/UCrgd8qJ7CE97PSaPJySR6wA
The Journey of Electrical Energy
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: 1120951 eli0s78
Wood burning with 2000 volts of electricity! (Lichtenberg Figures)
Making lightning tree figures (aka Lichtenberg Figures) using the transformer out of a microwave oven that produces about 2000 volts run on 120 VAC. A solution of sodium bicarbonate is painted on the wood to increase its conductivity, then the transformer is applied. The circuit creates an unpredictable, treelike burn pattern. This is extremely dangerous. It can kill you.
Views: 1301784 Brad Russell
Which Way Does Electricity Flow ?
Which way does electricity flow? http://www.roley.co.uk/which-way-does-electricity-flow.html A simple question that anyone could answer - which way does electricity flow? Even if you know nothing about electronics, you still have a 50 percent chance of correctly guessing which way electricity flows. Okay fair enough if you're going to answer left or right or even up or down then....no even if you were going to answer one of those, this simple which way current flows video will still be a chance for you to get it right. Just watch it and give it a go. Unlock MORE http://www.roley.co.uk/ Copyright © Roley 2016. All rights reserved.
Views: 9153 Roley
IGCSE Chemistry Electricity Lesson 1: Intro
CORE LO: • Describe the reasons for the use of copper and (steelcored) aluminium in cables, and why plastics and ceramics are used as insulators. SC: • Remember that at home or office, electricity travels through a good electrical conductor like copper (which is unreactive) and is insulated by a non-conducting plastic. • Remember that electrical cables from the power plant have lightweight aluminium that electricity travels through. The cables are reinforced with steel to prevent excessive sagging of the cables and the cable is insulated with ceramic to prevent electrical loss.
What happens When Electricity Passes through Mercury
Mercury is a liquid metal in room temperature that conduct electricity hence it has applications in electronics
Views: 7451 Techs Science
Do Volts or Amps Kill You? Voltage, Current and Resistance
There's a saying that "it's not the volts that kills you, it's the amps" and while that's true in a way, you can't have amps without volts and skin resistance plays a big part too. This video explores all this, introducing voltage, current and resistance for those new to these things. Support RimstarOrg on Patreon https://www.patreon.com/user?u=680159 Subscribe for new videos every week http://www.youtube.com/user/rimstarorg?sub_confirmation=1 Go to the main channel page here https://youtube.com/rimstarorg Sources for the table on the effect of current: http://www.cdc.gov/niosh/docs/98-131/pdfs/98-131.pdf http://www.ohsbok.org.au/wp-content/uploads/2013/12/23-Hazard-Electricity.pdf?x71776 See also: Wimshurst machine - How to make using CDs http://youtu.be/puC6-UaT9Fk How Fast is an Electron and Electricity http://youtu.be/jbi7gJTPSXk Fresnel lens solar cooker using TV lens http://youtu.be/wprlzCDfLm8 A few sources: Worker deaths by electrocution - U.S. Department of Health and Human Services http://www.cdc.gov/niosh/docs/98-131/pdfs/98-131.pdf Physical Hazards: Electricity - Safety Institute of Australia Ltd http://www.ohsbok.org.au/downloads/23_Electricity.pdf 3D modelling and animation done using Blender 2.63. Follow behind-the-scenes on: Twitter https://twitter.com/#!/RimStarz Google+ https://plus.google.com/116395125136223897621 Facebook https://www.facebook.com/rimstarorg http://rimstar.org A Darker Heart - music by audionautix.com
Views: 1886564 RimstarOrg
Energy Experiment: Electricity Flow through the body
Ross Ferguson's Energy Experiment: Electricity flow through the body
Views: 6727 Allan Ferguson
What Really Happens To Your Body When You're Electrocuted?
Over 100 people in the United States die each year from electrocution. What happens when electric charges surge through your body? Watch More: What Really Happens To Your Body When You Drown? ►►►► https://www.youtube.com/watch?v=CMxHQ5B7dZ8 Support Life Noggin on Patreon: https://www.patreon.com/LifeNogginStudios?ty=h Follow Us! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin Click here to see more videos: https://www.youtube.com/user/lifenoggin Life Noggin is a weekly animated educational series. Whether it's science, pop culture, history or art, we explore it all and have a ton of fun doing it. Life Noggin Team: Director/Voice: http://lifenogg.in/patgraziosi Executive Producer: http://lifenogg.in/IanDokie Director of Marketing: http://lifenogg.in/JaredOban Animation by Steven Lawson Head Writer: http://lifenogg.in/KayleeYuhas Sources: https://www.osha.gov/oshstats/commonstats.html http://www.esfi.org/resource/holiday-data-and-statistics-359 https://www.merriam-webster.com/dictionary/electrocute http://www.si-units-explained.info/ElectricCurrent/#.WMQNIjsrKUk https://www.physics.ohio-state.edu/~p616/safety/fatal_current.html http://www.realclearscience.com/blog/2015/02/what_electricity_does_to_your_body.html https://www.osha.gov/dte/grant_materials/fy09/sh-18794-09/electrical_safety_manual.pdf http://www.healthguidance.org/entry/17291/1/What-Happens-to-Your-Body-When-You-Get-Electrocuted.html http://hypertextbook.com/facts/2000/JackHsu.shtml http://www.resuscitationcentral.com/defibrillation/history-science/ http://www.zoll.com/resources/sudden-cardiac-arrest/ http://www.sca-aware.org/sudden-cardiac-arrest-faqs#faq1 https://www.osha.gov/dte/outreach/construction/focus_four/electrocution/electr_ig.pdf http://engineering.mit.edu/ask/how-do-birds-sit-high-voltage-power-lines-without-getting-electrocuted Written by Michael Sago
Views: 1322135 Life Noggin
Woodworking With Electricity #1
http://www.ElectrifiedArts.com -----DO NOT TRY THIS AT HOME----- - If you have any suggestions on what you would like me to do next, message me or post a comment - Done with a Microwave Oven Transformer (MOT) Hope you enjoyed!
Views: 146454 Electrified Arts
Blue Sky Science: How does electricity move through wires?
Blue Sky Science is a collaboration of the Wisconsin State Journal and the Morgridge Institute for Research. The questions are posed by visitors to Saturday Science events at the Discovery Building, a monthly series that features interactive exploration stations centered around a particular topic. The Blue Sky Science team then sets out to find an expert to answer the questions. To view other videos in the series, see http://go.madison.com/bluesky. For more on the Morgridge Institute, see http://morgridge.org/.
Views: 1706 madison.com
Electric fence experiment ends as expected (original) HD
We made a T-Shirt and other merchandise for the vid - Electric Fence Experiment! You can check it out at http://www.cafepress.com/electricfenceexperiment and get yourself a shirt! :D Joel is the guy on the end! Joel has no insulator :P FOR YOUR T-SHIRT/MERCHANDISE: http://www.cafepress.com/electricfenceexperiment A chain of friends touch an electric fence and fall to the ground! Scientific explanation for those interested: For the benefit of the wider science community, I thought I would explain the basic principles behind this video. The electric fence used was a pulse electric fence. It shoots an electric pulse every few seconds. Note the first in line is holding the electric fence for the entire duration of the film. He is standing on plastic which is an insulator, therefore the electric current couldn't travel through the plastic into the ground so it just keeps going down the wire and not into the human chain. However, when the last in line takes of his shoes, it means the electricity can run right through the chain through his feet and into the ground. I have heard from other sources that the closer you are to the end of the line the more resistance you cause and therefore get the greatest shock. Poor guy! :) Hope that helps!
Views: 1192938 Angus Fowles
Electrons inside a copper wire
I was asked to try and explain electron flow inside a wire. This short animation is my response. Please give us your comments
Views: 29900 Mallinson Electrical
How Current Flows In A Conductor : CBSE Class 10 Physics
Learn the concept of how current flows in a conductor / Circuit with the help of examples. Effect of electricity on atoms, electrons, protons, neutrons. Here is a demo of online video lecture. You can watch this complete video at : http://www.shikshaabhiyan.com/
Views: 31053 Shiksha Abhiyan
Sound to Electricity:  How do Microphones and Speakers Work?
Imagine turning turning sound into usable electricity! Wouldn't that be amazing? Well, it already happens everyday, watch this video to find out how! Previous Video: http://youtu.be/vqhAPEPByus Google+: https://plus.google.com/b/104548625245914242393/104548625245914242393 Facebook: https://www.facebook.com/pages/Cramboom/626670507378336 Script: Youtube, it's Cram. Sound. It is amazing, allowed us to perceive the world through vibrations in their air. And electricity, flowing electrons that power our modern world. These two seem like they couldn't be more different, but in fact they are different forms of the same thing. They are both forms of energy, and can be converted to one another. How? To figure this out, lets use the microphone as a starting point. It takes sound in from the top part, which has several holes in it, processes it somehow, and then sends it off as electricity through a wire.It seems simple enough, except for the processing part. Microphones are a kind of transducer, something that can convert one form of energy to another. In this case, it is sound to electricity. There are many kinds of microphones, but one thing they all have in common is called the diaphragm, a thin piece made of a material, commonly plastic, aluminum or paper. This acts in a similar fashion to our eardrums, it vibrates because of sound waves. Ok, but our eardrums don't convert sound into electricity. We're all familiar with a simple electrical generator, right? Basically, there is a coil, typically a conductor like copper, and inside the coil is a magnet. As the magnet rotates/ moves, an electrical current passes through the coil. This is because of electromagnetism, and electricity can be used to make a magnet, the opposite is also true. So when this material vibrates, it is attached to the magnet, therefore moving the magnet, thus creating an electrical signal. This signal is passed through a wire to a speaker, or anything that plays music. This speaker is also a transducer. It does the opposite though. Remember how electricity can be used to create a magnet? Well, that's what's happening. The electricity flows through the coiled conductor inside the speaker, in turn moving the magnet. This magnet usually moves a cone, instead of a thin material, which produces the sound. This is why larger speakers typically have more bass, since the cone is bigger, larger wavelengths can travel further, thus having more "oomph" and cleaner sound. Wait, so if sound can make energy, why don't we use it as a renewable source of energy? That's because the amount of energy is extremely low, too low to even bother with. Or it would be the end of the energy crisis we face today. I hope you enjoyed this video as much as I appreciated you watching. Subscribe to stay up to date on all my latest science videos, and until next time, Cram Out. Credits: ♫ 'Daggers' by Metiri Metiri Facebook: http://facebook.com/metiridubstep Metiri YouTube: http://youtube.com/metiridubstep Proof of Permission: http://i40.tinypic.com/2l8uclx.png
Views: 51608 CramBoom
Transmission Lines - Signal Transmission and Reflection
Visualization of the voltages and currents for electrical signals along a transmission line. My Patreon page is at https://www.patreon.com/EugeneK
How the cardiac cycle is produced by electrical impulses in the heart
This was part of a series of 3 short animations: The cardiac cycle http://www.youtube.com/watch?v=5tUWOF6wEnk Electrocardiograph http://www.youtube.com/watch?v=ygsvAZVA6sc How the cardiac cycle is produced by electrical impulses in the heart http://www.youtube.com/watch?v=fZT9vlbL2uA And some additional medical illustrations here: http://pinterest.com/luxson/luxson-medicaltm/
Views: 236041 LUXSONTube
How the Heart Works - Electrical System of the Heart Animation - Cardiac Conduction Video - ECG
The cardiac conduction system is a group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of the cardiac conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. The SA node (anatomical pacemaker) starts the sequence by causing the atrial muscles to contract. From there, the signal travels to the AV node, through the bundle of His, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract. This signal creates an electrical current that can be seen on a graph called an Electrocardiogram (EKG or ECG). Doctors use an EKG to monitor the cardiac conduction system’s electrical activity in the heart. Electrical conduction system of the heart The normal electrical conduction in the heart allows the impulse that is generated by the sinoatrial node (SA node) of the heart to be propagated to, and stimulate, the cardiac muscle (myocardium). The myocardium contracts after stimulation. It is the ordered, rhythmic stimulation of the myocardium during the cardiac cycle that allows efficient contraction of the heart, thereby allowing blood to be pumped throughout the body. Electrical signals arising in the SA node (located in the right atrium) stimulate the atria to contract, and travel to the atrioventricular node (AV node), which is located in the interatrial septum. After a delay, the stimulus diverges and is conducted through the left and right bundle of His to the respective Purkinje fibers for each side of the heart, as well as to the endocardium at the apex of the heart, then finally to the ventricular epicardium. On the microscopic level, the wave of depolarization propagates to adjacent cells via gap junctions located on the intercalated disk. The heart is a functional syncytium (not to be confused with a true "syncytium" in which all the cells are fused together, sharing the same plasma membrane as in skeletal muscle). In a functional syncytium, electrical impulses propagate freely between cells in every direction, so that the myocardium functions as a single contractile unit. This property allows rapid, synchronous depolarization of the myocardium. While advantageous under normal circumstances, this property can be detrimental, as it has potential to allow the propagation of incorrect electrical signals. These gap junctions can close to isolate damaged or dying tissue, as in a myocardial infarction (heart attack). The heart’s electrical system is responsible for creating the signals that trigger the heart to beat. The process begins in the upper chambers of the heart (atria), which pump blood into the lower chambers (ventricles). The ventricles then pump blood to the body and lungs. This coordinated action occurs because the heart is "wired" to send electrical signals that tell the chambers of the heart when to contract. The Heartbeat How the Heart is Wired You may know or have heard of someone with an artificial pacemaker or other implantable device to regulate the beat of the heart. Pacemakers and the wiring that run through the heart coordinate contractions in the upper and lower chambers, which makes the heartbeat more powerful so it can do its job effectively. We normally have our own natural pacemakers that tell the heart when to beat. The master pacemaker is located in the atrium (upper chamber). It acts like a spark plug that fires in a regular, rhythmic pattern to regulate the heart's rhythm. This "spark plug" is called the sinoatrial (SA), or sinus node. It sends signals to the rest of the heart so the muscles will contract. First, as soon as the signal is sent, the atrium contracts. Like a pebble dropped into a pool of water, the electrical signal from the sinus node spreads through the atria. Next, the signal travels to the area that connects the atria with the ventricles. This electrical connection is critical. Without it, the signal would never reach the ventricles, the major pumping chambers of the heart. The electrical signal reaches another natural pacemaker called the atrioventricular node (AV node). As the signal continues and crosses to the ventricles, it passes through a bundle of tissue called the AV bundle, also called the bundle of His. The bundle divides into thin, wire-like structures called bundle branches that extend into the right and left ventricles. The electrical signal travels down the bundle branches to thin fibers. Lastly, these fibers send out the signal to the muscles of the ventricles, causing them to contract and pump blood into the arteries. In a normal heart, this coordinated series of electrical signals occurs about once every second, maintaining the steady, rhythmic pattern of the heart’s beat.
Views: 44810 AniMed
How electric current flow works. ✔
More details visit: http://www.techtrixinfo.com/ Plz Join Our Face Book Page. http://www.facebook.com/pages/TechTrixInfo/271447906234307 Related topics: Technical explained working of explanation repair maintenance automobile engineering mechanical details on cars vehicles technology technical the best worlds best perfect well very good explanation gears how does it work animations of design invention discovery works what is where service practical machines real dismantling assembling production creation torque fixing servicing installation installed handling teaching tutorial hands on training operation techtrixinfo greasing maintenance scheduled designing process removing welding fabrication fabricating recommended recommented warranty weight procedure standard vibration load efficiency efficient productivity consumption fuel network wear and tear crack stroke hydraulics flow diagram circuit.
Views: 262179 TechTrixInfo
Explaining why metals can conduct electricity.
This short flash video looks at what makes metals capable of conducting an electric current. This is explained in terms of delocalised electrons that can flow and carry an electric charge.
Views: 70596 FranklyChemistry
Explaining an Electrical Circuit
A simple explanation on how an electrical circuit operates.
Views: 922222 Region 10 ESC
Electrical fireball in Lachine
To use this video in a commercial player or in broadcasts please email [email protected]
Views: 4661634 Huw Griffiths
Energy & Electricity in Science : How Fast Does Light Travel?
Light is a form of electromagnetic radiation, which always travels at a speed of 186,000 miles per second in a vacuum. Discover how light travels slower in transparent media with information from a science teacher in this free video on electromagnetic radiation and science lessons. Expert: Steve Jones Contact: www.marlixint.com Bio: Steve Jones is an experienced mathematics and science teacher. Filmmaker: Paul Volniansky
Views: 5363 eHow
Uniform Electric Field, Motion of Charged Particles, Electron - Physics Practice Problems
This physics video tutorial discusses the motion of charged particles such as an electron and a proton in an uniform electric field. Particles with a positive charge will accelerate in the direction of the electric field. The opposite is true for negatively charged particles. This video contains plenty of examples and practice problems such as calculating the net force on an electron in an electric field, the acceleration, final speed of an electron accelerating from rest, kinetic energy, and the time it takes the electron to travel from one end of the plate to the other end. The electric field is generated across two parallel plates. In addition, the kinetic energy was calculated using the work energy principle / thereom where Work = Force x displacement is also equal to the change in kinetic energy.
How Electricity Passes through Human body for A.C. & D.C. Systems
Gives a clear idea regarding how electric Current Passes through a human body when a person goes in contact with live wire and necessary constraints to experience shock etc.....
Views: 1133 seshasai kumar
how electricity flows through a wire
This video explains Walter Russell's openion on how electricity flows through a wire. April 10, 2011 12:50 PM
Views: 10249 delphinny
Action Potential Explained - The Neuron
Action Potential Explained - The Neuron. An Action potential is the neurons way of transporting electrical signals from one cell to the next. This is a picture of a neuron, where you have dendrites in one end, and the axon terminal in the other end. In the middle of the neuron you will find the axon, which is where the electrical signal will travel from the dendrites to the axon terminal to the synapse. This is a picture of a myelinated neuron, which is covered with a myelin sheath that allows the electrical signal to travel faster through the axon. So instead of activating every ion channel down the axon, only channels in the small spaces between each myelin sheath called the Node of Ranvier is activated and generates an action potential. So lets take a closer look at the axon. On the membrane of the neuron, you will find small ion channels that are closed when the cell is in its resting state. The neuron is able to create an action potential because of the concentration difference of ions between the intracellular space and the extracellular space. There is a higher concentration of sodium ions outside the neuron and a higher concentration of potassium inside the neuron. the extracellular space is more positive than inside the neuron. This creates a voltage difference of -- 70 mV, which is created with the help of leaky ion channels that are more permeable to potassium ions than sodium ions, which will cause potassium to leave the cell and only small amount of sodium to enter. The sodium potassium pump also regulates the intracellular environment, by pumping out 3 sodium ions in exchange for 2 potassium ions. The -- 70 mV is the neurons resting potential, but when the neuron is stimulated by a presynaptic neuron, it causes sodium channels to open, letting in positive ions. This will change the electrical environment and make it more positive on the inside and less positive on the outside. This is called Depolarization, and which causes a chain reaction where the next sodium channels will open letting in positive ions, all the way down the axon. Shortly after a channels have opened, they will close again and potassium channels will then open letting out positive potassium ions, to recreate the negative environment inside the neuron and the positive environment outside. This happens at around + 40 mV, and causes a Repolarization where the intracellular space is becoming negative again. The neuron then reaches a state of Hyperpolarization where the cell has let out too many ions and has now become more negative than the cells resting potential. This is quickly corrected by the leaky channels and the sodium potassium pump, and the neuron stabilize at the resting potential at a -- 70 mV. The action potential that has traveled through the axon, reaches the axon terminal, where vesicles with neurotransmitters are released out into the synaptic cleft to transport the signal to another neuron.
Views: 631617 Bittersweet Biology
How To Do Time Travel Using Your Mind Power
Time travel using your mind power Ajj ki Video Time Travel pr hai iss video mai aapko Yeh bhi pta chl jayega ki How to Time Travel समय यात्रा ki Hr Cheez aapko yha pta chl jayegi Yeh bahut main question hai is time travel possible Isme mai aapko Albert einstein ki Relativity theory bhi bta dunga Time machine Time travel ke liye iss video ko last tk zrrur dekhna is time travel really possible? Today we dig into this age old question and investigate what Science has to offer us in this realm. Time travel can be made possible in a few different ways. Worm holes, time dilation we are gonna discuss everything here! Watch the entire video to know about it! Time travel is the concept of movement between certain points in time, analogous to movement between different points in space, typically using a hypothetical device known as a time machine, in the form of a vehicle or of a portal connecting distant points in time. Time travel is a recognized concept in philosophy and fiction, but traveling to an arbitrary point in time has a very limited support in theoretical physics, and usually only in conjunction with quantum mechanics or Einstein–Rosen bridges. In a more narrow sense, one-way time travel into the future via time dilation is a proven phenomenon in relativistic physics, but traveling any significant "distance" requires motion at speeds close to the speed of light, which is not feasible for human travel with current technology. 5 Ways to do time travel In Hindi : 1. Black holes 2. Wormholes 3. Speed of Light 4. Warp Drive 5. Cosmic Strings Agrr Video pasnad aaye to Like and share zrrur krna and agr aap iss channel pr naye hai to channel ko subcribe krna mat bhulna Thanks For watching Astral Travel :- https://youtu.be/TvMK6xxJR4I Telepathy:- https://youtu.be/SeYUoUZGhis Meditation:- https://youtu.be/uOS3Gbtartw How to open Third Eye :- https://youtu.be/DirjzlqLWZo 10 sign Your third eye has opened https://youtu.be/jcTufL0FAg4 Telekinesis (Dimag ki shakti se kisi cheez ko kaise hilaye) :- https://youtu.be/BCVJfU3m4g4 Agrr Aap Bhi Time Travel Real mai krna chahte hai to Yeh book aapke liye bahut zyada Better rahegi jiska link mai neeche de rha hu agr aap iss link se book Buy(purchase) krte hai to aapko website discount degi BOOK LINK:- Ready For Time Travel Albert EINSTEIN http://amzn.to/2EEAQnH -~-~~-~~~-~~-~- Please watch: "Top 5 Mysteries Science Can't Explain " https://www.youtube.com/watch?v=cbigJ0Qrh_4 -~-~~-~~~-~~-~-
Views: 16464 Crazy Technology
Energy & Electricity in Science : How Does Light Travel?
In order to understand how light travels, it's important to think of it as a wave or a particle. Learn about the properties of light, such as reflection and refraction, with information from a science teacher in this free video on properties of light and science lessons. Expert: Steve Jones Contact: www.marlixint.com Bio: Steve Jones is an experienced mathematics and science teacher. Filmmaker: Paul Volniansky
Views: 12927 eHow
Mercedes-Benz eCitaro Electric Bus Handover to Mannheim and Heidelberg
▪ eCitaro buses for Heidelberg's historic city centre and Mannheim's new Franklin district ▪ Daily mileage of more than 200 kilometres planned ▪ Daimler Buses' operational concept for the electrification of transport businesses Today, on January 7th, Rhein-Neckar-Verkehr GmbH (rnv) ceremoniously started operation of three fully-electric Mercedes Benz city buses. At the bus depot in Mannheim, Till Oberwörder, Head of Daimler Buses, and Martin in der Beek, Technical Managing Director at rnv, presented the new eCitaro buses in the presence of Dr. Peter Kurz, Mayor of Mannheim, as well as Christian Specht, first Mayor of Mannheim, and then in the presence of Professor Eckart Würzner, Mayor of Heidelberg. "The eCitaro is redefining conventionally driven bus transportation and is for us the symbol for future-oriented local public transport. A holistic approach is very important to us. That is why we have put together a comprehensive package comprising the vehicle, charging management and consultation with which we are supporting the transport company in its endeavour to electrify its buses," says Till Oberwörder. Dr. Peter Kurz, Mayor of Mannheim, and Prof. Eckart Würzner, Mayor of Heidelberg, praise the far-sighted commitment of rnv with regard to "green urban traffic". Dr. Peter Kurz: "The local public transportation system in Mannheim stands for a holistic concept comprising both buses and trains. The electrification of buses is now an important milestone on the way to a clean city and will make local public transport significantly more attractive.“ First electric bus services in the Rhine-Neckar triangle The first purely electric eCitaro bus service in Heidelberg goes from the main train station via the Seegarten to the Karlsplatz and then later to the Altstadt commuter rail station. Bus route 20 travels through Heidelberg's city centre every 20 minutes, whereby it is expected that in the future two vehicles will cover the four kilometre long route with 12 stops. One of Mannheim's electric bus routes leaves from Käfertal train station and travels via Wasserwerkstraße to the Franklin district, a new district where members of the US armed forces used to live. The other route begins at the Platz der Freundschaft and ends at the new Taylor industrial estate, which also once belonged to the US armed forces. One eCitaro will be in operation on each route. In Heidelberg, the vehicles will be on the road between 9.00 a.m. and 10.00 p.m. and in Mannheim between 6.00 a.m. and midnight. This corresponds to a daily mileage of about 200 kilometres or more per vehicle. Accordingly lithium-ion batteries with a total capacity of 243 kWh will provide the electric power. The battery design is modular, comprising 10 modules each with an output of 25 kWh. In addition to the six battery modules on the vehicle's roof, four battery modules in the rear take the position of today’s drive system combination of combustion engine and transmission. Charging technology in the depot With its charging technology the eCitaro adapts to the conditions provided by rnv. The target is a mileage of 200 km or more for each vehicle which can be achieved with fast charging in the form of top-up charging during breaks in operation. During these breaks another eCitaro will be in operation in Heidelberg and Mannheim, otherwise it would not be possible to meet requirements. The buses are charged using a combi-2 plug, located on the right in the direction of travel above the front wheel housing. The new ISO 15118 standard offers extended functions which enable for example automatic authentication of vehicles without a separate charging card. With the help of extended data transmission, Mercedes Benz developed a function with which automatic control of preconditioning in buses is realised via the charging connector. Thus, there is no need for additional cables or lines for compressed air, low voltage or communication. The newly developed charging device has an output of up to 150 kW and is to be delivered to rnv together with the eCitaro. This guarantees the simplest, fastest and most favourably priced variant of the power supply. Mercedes-Benz will continue to support the rnv after the buses and charging stations have been purchased: Together with energy management specialists, “The Mobility House” from Munich, Mercedes-Benz is developing and implementing a customised charging management system. Charging is optimised in a way that the connection power of the charging devices and the requirements of the vehicle battery are taken into account. #Electric_Bus #Mercedes-Benz
Views: 1277 The Wheel Network
What is Electricity
Hi, I'm Emerald Robinson. In this "What Is" video we're going to take a closer look at electricity. Electricity is a natural force that we've harnessed for our energy needs. To understand electricity, we need to know a little about atoms, the tiny particles that make up our universe. Three smaller particles make up atoms: neutrons, electrons and protons. Electrons have a negative charge, protons have a positive charge, and neutrons are neutral. The center of the atom includes neutrons and protons, while the electrons orbit the center like the earth orbits the sun. Stable atoms have an equal number of protons and electrons, and have no charge. If a material holds on to its electrons tightly, it is known as an insulator. If its electrons are more loosely bound, it's called a conductor. When a large number of free electrons "pile up" at one end of a conductor, particles that have the same charge repel each other, while particles that have opposite charges attract. These negative electrons push each other apart, jumping from atom to atom through the conductor...  creating electricity. There are two forms of electricity -- current and static. Current electricity travels. It is composed of flowing electrons passing from one atom to another through a conductive material. It's this form of electricity that powers our homes. Static electricity is a charge at rest on an object. Sometimes your body picks up extra electrons through friction and becomes negatively charged. When you touch a conductor, like a metal door knob, you experience a small shock as this static charge jumps from your body to the door knob. Electricity is a secondary energy source, meaning we have to convert energy from another source into electric power. Sources of electricity include burning natural gas and coal, nuclear power, and natural sources of power, such as wind, water, and solar energy. And that's the shocking truth about electricity.
Views: 26792 red Orbit
How Nervous System Works Animation - Nerve Conduction Physiology. Central & Peripheral Anatomy Video
The nervous system is composed of two divisions, the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and the spinal cord and the PNS consists of thousands of nerves that connect the spinal cord to muscles and sensory receptors. A peripheral nerve is composed of nerve bundles (fascicles) that contain hundreds of individual nerve fibers (neurons). Neurons consist of dendrites, axon, and cell body. The dendrites are the tree-like structures that receive signals from other neurons and from special sensory cells that sense the body’s surrounding environment. The cell body is the headquarters of the neuron and contains its genetic information in the form of DNA. The axon transmits signals away from the cell body to other neurons. Many neurons are insulated like pieces of electrical wire. This insulation protects them and also allows their signals to move faster along the axon. Without this insulation, signals from the brain might never reach the outlying muscle groups in the limbs. The operation of the nervous system depends on the flow of communication between neurons. For an electrical signal to travel between two neurons, it must first be converted to a chemical signal, which then crosses a space of about a millionth of an inch wide. The space is called a synapse, and the chemical signal is called a neurotransmitter. Neurotransmitters allow the billions of neurons in the nervous system to communicate with one another, making the nervous system the master communication system of the body. The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts. The brain and spinal cord form the control center known as the central nervous system (CNS), where information is evaluated and decisions made. The sensory nerves and sense organs of the peripheral nervous system (PNS) monitor conditions inside and outside of the body and send this information to the CNS. Efferent nerves in the PNS carry signals from the control center to the muscles, glands, and organs to regulate their functions. Nervous System Anatomy Nervous Tissue: The majority of the nervous system is tissue made up of two classes of cells: neurons and neuroglia. Neurons. Neurons, also known as nerve cells, communicate within the body by transmitting electrochemical signals. Neurons look quite different from other cells in the body due to the many long cellular processes that extend from their central cell body. The cell body is the roughly round part of a neuron that contains the nucleus, mitochondria, and most of the cellular organelles. Small tree-like structures called dendrites extend from the cell body to pick up stimuli from the environment, other neurons, or sensory receptor cells. Long transmitting processes called axons extend from the cell body to send signals onward to other neurons or effector cells in the body. There are 3 basic classes of neurons: afferent neurons, efferent neurons, and interneurons. Afferent neurons. Also known as sensory neurons, afferent neurons transmit sensory signals to the central nervous system from receptors in the body. Efferent neurons. Also known as motor neurons, efferent neurons transmit signals from the central nervous system to effectors in the body such as muscles and glands. Interneurons. Interneurons form complex networks within the central nervous system to integrate the information received from afferent neurons and to direct the function of the body through efferent neurons. Brain The brain, a soft, wrinkled organ that weighs about 3 pounds, is located inside the cranial cavity, where the bones of the skull surround and protect it. The approximately 100 billion neurons of the brain form the main control center of the body. The brain and spinal cord together form the central nervous system (CNS), where information is processed and responses originate. The brain, the seat of higher mental functions such as consciousness, memory, planning, and voluntary actions, also controls lower body functions such as the maintenance of respiration, heart rate, blood pressure, and digestion. Spinal Cord The spinal cord is a long, thin mass of bundled neurons that carries information through the vertebral cavity of the spine beginning at the medulla oblongata of the brain on its superior end and continuing inferiorly to the lumbar region of the spine. In the lumbar region, the spinal cord separates into a bundle of individual nerves called the cauda equina (due to its resemblance to a horse’s tail) that continues inferiorly to the sacrum and coccyx. The white matter of the spinal cord functions as the main conduit of nerve signals to the body from the brain. The grey matter of the spinal cord integrates reflexes to stimuli.
Views: 217130 AniMed
World's Simplest Electric Train
This is birth video of world's simplest electric train. Thank you for watching from around the world. (Run outside the coil) - http://youtu.be/Y1MDOerruDU (Speed Battle) - https://youtu.be/yL0TRmprhEM (How to make) - https://youtu.be/IXeXcbvBPJw This “Train” is made of magnets copper wire and a dry cell battery. Please enjoy watching this simple structure electric train (electromagnetic train). - Previous title - World's Simplest Electric Train 【世界一簡単な構造の電車】 【Structure and How to make】 ※日本語での説明は欄の下 It's possible to get such power using a dry battery, neodymium magnets (super strong magnets which plated with metal) and a bare copper wire. A point is that a magnet's diameter is bigger than a dry cell battery's diameter. And an electric current flows to a coil through a neodymium magnets, and a coil will be an electromagnet only in an area between the magnet and the magnet. The electromagnet and a neodymium magnet poles repel each other at one side. The other side poles pull against each other. They work same direction, and it become a big force. The phenomenon also continues at a movement destination. ※Another important point is magnets direction (e.g.) NS battery SN Thank you for reading. How about making this simplest electromagnetic train for science fair projects? 【My YouTube Channel】 In this video's URL https://www.youtube.com/channel/UCuDG1RIJehn2kTPB95DPixA 【Subscribe】 http://goo.gl/cckoxX 【動く仕組み・作り方】 https://youtu.be/IXeXcbvBPJw 乾電池、ネオジム磁石(メッキされているもの)、裸銅線を用いてこのような動力を得ることが出来ます。 ポイントは、磁石は乾電池の直径より大きいものを用いることです。 それによりコイルにはネオジム磁石を通して電流が流れ、磁石と磁石の間の区間だけはコイルが電磁石になります。 その電磁石と中のネオジム磁石が片側では反発し合い、片側では引き合い大きな推進力となります(同じ方向に力が働く)。 そして、それが移動先でも続きます ただし、そのような動力を得るためには、磁極の向きが重要で、両端が同じ極、例えば、 NS 乾電池 SN という具合にする必要があります。 お暇なときにお子さんたちと一緒に作って遊んでみてはいかがでしょうか。
Views: 26329038 君AmazingScience
RadCam II HD Video of "Electric Guitar" in a 5 MeV Particle Accelerator
A shielded High Definition video camera setup was created by one of our team members, Todd Johnson, to capture HD video of objects while they were being irradiated by a multimillion volt electron beam. The camera was mounted about 15 inches above the surface of the cart so that it could look down on objects being irradiated. A combination of high density polyethylene and lead sheets were used to "gracefully" slow down electrons emerging from the accelerator to prevent them from potentially cooking the innards of the HD camera below. In this clip, the camera is looking down on an acrylic guitar blank that is resting on one of the moving material handling carts. The cart first travels through a radiation-blocking S-shaped labyrinth, and then emerges in the beam room. As it gets closer to the accelerator, high energy x-ray photons begin penetrating the camera body, directly hitting the image sensor. These cause an ever-increasing number of speckles and streaks in the image. Finally, secondary electrons also begin hitting the sensor and the combined radiation begins to saturate the image sensor. However, as the beam passes over the guitar, a multitude of lightning-like discharges can clearly be seen (and heard) until the camera passes directly underneath the beam. The accelerator's 100 Hz scanning frequency can clearly be heard as the beam directly interferes with the camera's audio circuitry. As the camera emerges from the beam, the flashes of secondary discharges can clearly be seen in the guitar blank as radiation speckling slowly subsides, For more information about Captured Lightning sculptures (Lichtenberg Figures), please see our other videos or visit our Lichtenberg information pages at: http://www.capturedlightning.com/frames/lichtenbergs.html http://www.capturedlightning.com/frames/interesting.html http://www.capturedlightning.com/frames/interesting3.html
Views: 33042 Bert Hickman
current flow in a wire
STD 10 Science and Technology - Electricity
Views: 39631 MahaEduTechNet
Energy & Electricity in Science : How Fast Does a Photon Move?
A photon is a bundle of electromagnetic energy, which travels at 186,000 miles per second. Discover how photons can move at the speed of light with information from a science teacher in this free video on electromagnetic energy and science lessons. Expert: Steve Jones Contact: www.marlixint.com Bio: Steve Jones is an experienced mathematics and science teacher. Filmmaker: Paul Volniansky
Views: 3375 eHow
Cardiac Conduction System and Understanding ECG, Animation.
This video and other related images/videos (in HD) are available for instant download licensing here: https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/cardiology-and-vascular-diseases ©Alila Medical Media. All rights reserved. Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia The cardiac conduction system consists of the following components: - The sinoatrial node, or SA node, located in the right atrium near the entrance of the superior vena cava. This is the natural pacemaker of the heart. It initiates all heartbeat and determines heart rate. Electrical impulses from the SA node spread throughout both atria and stimulate them to contract. - The atrioventricular node, or AV node, located on the other side of the right atrium, near the AV valve. The AV node serves as electrical gateway to the ventricles. It delays the passage of electrical impulses to the ventricles. This delay is to ensure that the atria have ejected all the blood into the ventricles before the ventricles contract. - The AV node receives signals from the SA node and passes them onto the atrioventricular bundle - AV bundle or bundle of His. - This bundle is then divided into right and left bundle branches which conduct the impulses toward the apex of the heart. The signals are then passed onto Purkinje (pur-KIN-jee) fibers, turning upward and spreading throughout the ventricular myocardium. Electrical activities of the heart can be recorded in the form of electrocardiogram, ECG or EKG. An ECG is a composite recording of all the action potentials produced by the nodes and the cells of the myocardium. Each wave or segment of the ECG corresponds to a certain event of the cardiac electrical cycle. When the atria are full of blood, the SA node fires, electrical signals spread throughout the atria and cause them to depolarize. This is represented by the P wave on the ECG. Atrial contraction , or atrial systole (SIS-toe-lee) starts about 100 mili-seconds after the P wave begins. The P-Q segment represents the time the signals travel from the SA node to the AV node. The QRS complex marks the firing of the AV node and represents ventricular depolarization: - Q wave corresponds to depolarization of the interventricular septum. - R wave is produced by depolarization of the main mass of the ventricles. - S wave represents the last phase of ventricular depolarization at the base of the heart. - Atrial repolarization also occurs during this time but the signal is obscured by the large QRS complex. The S-T segment reflects the plateau in the myocardial action potential. This is when the ventricles contract and pump blood. The T wave represents ventricular repolarization immediately before ventricular relaxation, or ventricular diastole (dy-ASS-toe-lee). The cycle repeats itself with every heartbeat. All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Views: 2263672 Alila Medical Media
Traveling Waves: Crash Course Physics #17
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: 682263 CrashCourse
JUCY Electric Camper Travels Dunedin to Queenstown!
Thanks to Heloise and Solene for creating Episode 5 of their electric campervan journey around New Zealand! Find out more about JUCY's EV trial jucy.co.nz/useful-stuff/jucy-ev/ Follow www.facebook.com/jucyworld Instagram - @JUCYworld
Views: 254 Jucy World
Cell Games Across the Multiverse - TeamFourStar (TFS) | Dragon Ball Z Abridged (DBZA)
Team Four Star is a group of voice actors, sound designers, musicians entertainers and Anime lovers based out of Texas. TFS loves to make comedy and specifically parody. Dragonball Z Abridged Parody follows the adventures of Goku, Gohan, Krillin, Piccolo, Vegeta and the rest of the Z Warriors as they gather Dragonballs and fight intergalactic evil. With the comedic writings of Lanipator, Takahata101, and Kaiserneko this may not be the DBZ you remember but TFS hopes you enjoy it all the same. How high can the Krillin Owned Count get? Who will be the next to go Super Saiyan? Can Vegeta's ego get any bigger? Find out NOW on DBZ Abridged! WE DO NOT OWN DRAGONBALL. DragonBall is Owned by TOEI ANIMATION, Ltd. and Licensed by FUNimation Productions, Ltd.. All Rights Reserved. DragonBall, DragonBall Z, DragonBall GT and all logos, character names and distinctive likenesses thereof are trademarks of TOEI ANIMATION, Ltd.
Views: 3564861 TFS Lists
The Heart, part 2 - Heart Throbs: Crash Course A&P #26
Today we're talking the heart and heart throbs -- both literal and those of the televised variety. Hank explains how your heart’s pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting electricity travels through the cardiac conduction pathway from SA Node to Purkinje fibers, allowing your heart to contract. He's also going to make you better able to spot inaccuracies in medical dramas by explaining how defibrillators work to reset the rhythm of your heart. Table of Contents Pacemaker Cells Generate Their Own Action Potentials 2:47 The Cardiac Conduction Pathway 3:45 SA Node to Purkinje Fibers 4:48 How Defbrilators Work 6:46 *** Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Anna-Ester Volozh, Robert Kunz, Jason A Saslow, Christian Ludvigsen, Chris Peters, Brad Wardell, Beatrice Jin, Roger C. Rocha, Eric Knight, Jessica Simmons, Jeffrey Thompson, Elliot Beter, Today I Found Out, James Craver, Ian Dundore, Jessica Wode, SR Foxley, Sandra Aft, Jacob Ash, Steve Marshall ***SUBBABLE MESSAGES*** TO: Beth FROM: Joey I Love You Beth Ronie With All Of My Heart! -- TO: The WORLD FROM: Future Is The Future Awesome gender neutral vintage clothing: http://futureisthefuture.com ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Matthew Feickert, Stephen DeCubellis, Ethi Raj, Paul Castillo, Katrina Castillo, @bdb_i_am, Laura South, Philip Oddie, Suné Horn, @joshlama -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 1222481 CrashCourse