SciShow
Dimmer Switches: Secretly Strobe Lights
Having the ability to dim your lights seems like a pretty simple thing, but modern dimmer switches work in a surprisingly cool way!
Crash Course
Cinema, Radio, and Television: Crash Course History of Science
Radio, Cinema, and Television have been staples in news coverage, entertainment, and education for almost 100 years. But... where did they all come from? Who started what and when and why? In this episode, Hank Green talks to us about...
Crash Course
Electric Current: Crash Course Physics
So, electric current works like a river... kinda... Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics, Shini talks to us about electric...
MinutePhysics
Lorentz Transformations | Special Relativity Ch. 3
The previous videos in this series: Chapter 1: Why Relativity is Hard Chapter 2: Spacetime Diagrams This video is chapter 3 in my series on special relativity, and it covers boosts, galilean transformations, newtonian relativity, and of...
MinutePhysics
The Origin of Quantum Mechanics (feat. Neil Turok)
The Origin of Quantum Mechanics (feat. Neil Turok)
TED-Ed
TED-ED: Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting
When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine...
Bozeman Science
Resistors and Capacitors
In this video Paul Andersen explains how resistors and capacitors affect circuits. The resistance of a resistor is affected by the resistivity of the material and the geometry of the resistor. The current through a resistor can be...
Bozeman Science
Electricity and Electric Circuits
Mr. Andersen introduces the topic of electricity. He differentiates between static electricity and current electricity. An introduction to electric circuits is also included.
Bozeman Science
AP Biology Lab 9: Transpiration
Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments.
Bozeman Science
Kirchoff's Loop Rule
In this video Paul Andersen explains how Kirchoff's Loop Rule can be used to calculate the voltage of different components of a circuit. The sum voltage throughout an entire loop will sum to zero following the law of conservation of...
Bozeman Science
Voltage, Current and Resistance
Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation.
SciShow Kids
The Power of Circuits
Have you ever wondered how you can turn the light on in your house? Or maybe why you can push a doorbell and it makes a sound? This happens because of circuits! Join Jessi and Squeaks as they learn how circuits work, and make their very...
Bozeman Science
Series and Parallel Circuits
Mr. Andersen contrasts series and parallel electrical circuits. A simulation is used to visualize electron flow through both circuit types.
Bedtime History
How Edison Turned Failure Into Success
New ReviewThomas Edison is remembered as one of America’s greatest inventors—but his path to success was filled with failure. Before the light bulb worked, it failed over 1,000 times. His early businesses struggled, and some of his inventions...
Curated Video
How to Fix a Flickering Light
Howcast - A flickering light isn't just annoying; it can be dangerous. Learn how to fix the problem.
Curated Video
L.A. Noire Walkthrough: "Slip of the Tongue" (5 of 5)
Howcast - Check out this L.A. Noire walkthrough and beat "Slip of the Tongue" with this online demo.
Curated Video
How to Remove a Broken Light Bulb from the Socket
Howcast - Use this safe and easy technique next time you need to replace a shattered light bulb.
Curated Video
How to Rewire a Lamp
Howcast - You flick the switch and... everything's not illuminated? It may be your lamp needs a quick overhaul. Hey, lighten up, we're here to help.
Curated Video
How to Choose a Compact Fluorescent Light Bulb
Compact fluorescent light bulbs, or CFLs, use about 75% less energy, give off 90% less heat, and last up to ten times longer than old-fashioned incandescents. Changing over is as easy as... well, screwing in a light bulb.
Curated Video
How to Make Invisible Ink
Write a secret message with invisible ink using these simple household items.
Bedtime History
The Story of Thomas Edison
Meet Thomas Edison, the inventor who lit up the world—literally! Known for creating the first long-lasting light bulb, Edison also helped invent the phonograph and early motion pictures. He had over 1,000 patents and believed that hard...
Curated Video
Scoop Cooks Pies
It's getting late and Skoop is making delicious cookies for his friends. It's already dark out and Skoop can't read the recipe in his book. The cookies haven't turned out well at all. Leo builds a desk lamp so Skoop can still read his...
Makematic
The Second Industrial Revolution
From barbed wire to the automobile, key inventions between 1870 and 1900 revolutionized American farming, communication, entertainment, and transportation.