SciShow
Your Fridge Isn’t Green, but It Could Be
Refrigeration and air conditioning are among the largest sources of carbon, and the refrigerants we use are greenhouse gases, too. But green refrigerants are on the way, from elastocaloric cooling to a method a bit like salting an icy road.
MinutePhysics
Windmills Are NOT Like Dams
The Solution to the Windmill Paradox. This video is about the tradeoff of Windmills: the fact that the more kinetic energy you extract from the wind the slower the wind goes, the less wind you have to extract energy from, etc. How much...
SciShow
Can It Be Too Hot To Fly?
How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.
SciShow
The 3 Coolest Things Built By Bugs
Long before there were strip malls, skyscrapers, and combination Pizza Hut/Taco Bells, nature had its own architects: all kinds of creatures create all kinds of structures for living, raising offspring, or maybe just the occasional...
SciShow
Liquid Fluoride Thorium Reactors (LFTR): Energy for the Future?
Hank addresses a highly requested topic - liquid fluoride thorium reactors - and tells us how LFTR might be the future of energy in ... China?
Bozeman Science
PS3D - Energy in Chemical Processes and Everyday Life
In this video Paul Andersen explains how energy is used in chemical processes and everyday life. Students should understand that energy is neither created or destroyed but is converted. Most of the energy is delivered to our planet from...
Bozeman Science
Energy Reduction
The best form of energy available to the world is energy reduction. In this video Paul Andersen explains how energy conservation and energy efficiency and be used to decrease energy during peak demand. Tiered and variable pricing, as...
MinutePhysics
The Unreasonable Efficiency of Black Holes
This video is about how efficient various reactions are at converting mass to energy (as we know from the Einstein mass-energy equivalence of E=mc^2). Antimatter is very efficient but it is not naturally-occurring. Chemical reactions...
TED Talks
Amory Lovins: A 40-year plan for energy
In this intimate talk filmed at TED's offices, energy innovator Amory Lovins shows how to get the US off oil and coal by 2050, $5 trillion cheaper, with no Act of Congress, led by business for profit. The key is integrating all four...
TED Talks
Margaret Heffernan: The human skills we need in an unpredictable world
The more we rely on technology to make us efficient, the fewer skills we have to confront the unexpected, says writer and entrepreneur Margaret Heffernan. She shares why we need less tech and more messy human skills -- imagination,...
TED-Ed
How do wind turbines work? | Rebecca J. Barthelmie and Sara C. Pryor
Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. And unlike coal or oil, this resource is totally renewed each day. So how can we harness this incredible...
TED Talks
TED: Wireless data from every light bulb | Harald Haas
What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human...
TED Talks
Amory Lovins: Winning the oil endgame
In this energizing talk, Amory Lovins lays out his simple plan for weaning the US off oil and revitalizing the economy.
TED Talks
TED: Averting the climate crisis | Al Gore
With the same humor and humanity he exuded in "An Inconvenient Truth," Al Gore spells out 15 ways that individuals can address climate change immediately, from buying a hybrid to inventing a new, hotter brand name for global warming.
SciShow
How Does a Box-Shaped Fish Swim?
Box-shaped fish might seem like they don't have the most efficient body shape, but there are some surprising perks to being an underwater cuboid creature.
TED Talks
Daniele Quercia: Happy maps
Mapping apps help us find the fastest route to where we’re going. But what if we’d rather wander? Researcher Daniele Quercia demos “happy maps” that take into account not only the route you want to take, but how you want to feel along...
SciShow
The 3 Coolest Things Built By Bugs
Long before there were strip malls, skyscrapers, and combination Pizza Hut/Taco Bells, nature had its own architects: all kinds of creatures create all kinds of structures for living, raising offspring, or maybe just the occasional...
TED-Ed
TED-Ed: How does your body process medicine? - Celine Valery
Have you ever wondered what happens to a painkiller, like ibuprofen, after you swallow it? Medicine that slides down your throat can help treat a headache, a sore back, or a throbbing sprained ankle. But how does it get where it needs to...
MinutePhysics
The Twins Paradox Hands-On Explanation | Special Relativity Ch. 8
This video is chapter 8 in my series on special relativity, and it presents a hands-on explanation of the resolution to the Twins Paradox using the mechanical minkowski diagram, aka mechanical Lorentz transformation, aka spacetime globe....
SciShow
Electric Airplanes for the Future!
Hank tells us the outcome of the 2011 Green Flight Challenge and tells us why electric airplanes are the future of air travel.
SciShow
Facts About Fracking
Hank gives us a summary of the important facts about fracking: what it is, why we do it, and how it actually isn't all butterflies and cupcakes.
TED Talks
Gary Lauder's new traffic sign: Take Turns
Fifty percent of traffic accidents happen at intersections. Gary Lauder shares a brilliant and cheap idea for helping drivers move along smoothly: a new traffic sign that combines the properties of "Stop" and "Yield."
MinuteEarth
Why It's Good To Have A Weak Hand
We might have a strong hand because having a weak hand is actually useful.
SciShow
Purple Bacteria: Turning Poop Into Biofuel
Scientists are turning wastewater into fuel, using special bacteria, and other scientists have unveiled bionic mushrooms that can produce electricity!