TED-Ed
TED-Ed: How does your smartphone know your location? - Wilton L. Virgo
GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are? Wilton L. Virgo explains how the answer lies 12,000 miles over your head, in an...
TED-Ed
TED-ED: Could we create dark matter? - Rolf Landua
Eighty-five percent of the matter in our universe is dark matter. We don't know what dark matter is made of, and we've yet to directly observe it, but scientists theorize that we may actually be able to create it in the Large Hadron...
Crash Course
Low Mass Stars
Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion years. More massive stars like the Sun live shorter lives. They fuse hydrogen into...
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...
Crash Course
In Da Club - Membranes & Transport: Crash Course Biology
Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.
Bozeman Science
Using Gibbs Free Energy
In this video Paul Andersen explains how you can use the Gibbs Free Energy equation to determine if a process is spontaneous or not spontaneous. If the _G is less than zero the process is spontaneous. If the _G is greater than zero the...
Crash Course
Reversibility & Irreversibility: Crash Course Engineering #8
How do we design the most efficient machines and processes? Today we’ll try to figure that out as we discuss heat & work, reversibility & irreversibility, and how to use efficiency to measure a system.
SciShow
World's Most Asked Questions What Is Energy
What is Energy? The short answer is EVERYTHING. But what does that mean? Let SciShow explain.
SciShow
Strong Interaction: The Four Fundamental Forces of Physics #1b
Hank continues his primer on the strongest of the four fundamental interactions of physics, the strong interaction. Today he talks about the nuclear force and a force carrier called a pion.
SciShow
How to Supercool Water: A SciShow Experiment
Water doesn't always freeze when it's supposed to. Learn about supercooling, and how to supercool a bottle of water at home -- and then turn it to ice instantly!
Bozeman Science
Energy Concepts
In this video Paul Andersen explains the different forms and units for energy. A discussion of the laws of thermodynamics is also included. Sample conversion problems using dimensional analysis is also included.
Bozeman Science
Wave Model of an Electron
The wave model of the electron can be used to explain the Bohr model. Electrons are found in certain orbits because they interfere with themselves and create standing waves. When the wavelengths don't match up with a whole integer they...
Crash Course
Big Guns: The Muscular System - CrashCourse Biology
Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax.
SciShow
Hydrogen: The Savior of the Shipping Industry
Huge container ships relying on fossil fuels transport all kinds of goods across the ocean, creating a huge climate change impact. But there's a better way to power this transport using, of all things, water.
SciShow
The Coldest Place in the Universe
When the Cold Atom Laboratory launches to the International Space Station in 2016, it will become the coldest spot in the universe. Learn how scientists are going to get closer than ever to absolute zero -- and why they want to.
Curated Video
Quantum Mechanics - Part 1: Crash Course Physics
What is light? That is something that has plagued scientists for centuries. It behaves light a wave... and a particle... what? Is it both? In this episode of Crash Course Physics, Shini introduces to the idea of Quantum Mechanics and how...