Topic: energy

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The Coupled Pendulum, a physics demonstration

See the simple laws of physics at work: Two pendulums swing on a string, transferring energy from one to the other and back again. This demonstration by MarkHacks, made with cardboard, screw hooks, tape, string, and t...

What Can You Actually Do About Climate Change?

The average carbon footprint of a person in the US is 16.5 tons –TONS. So, what can you actually do decrease this number and make a meaningful difference? Miriam Nielsen itemizes how our individual choices can hav...

Running Lights, an animated short by Ged Sia

The unfortunate death of a wild hare turns into a remarkable experience for a couple of children who find his little body. They feel obliged to solve this matter; therefore, they bury him in a playground. Once buried,...

What’s the difference between hibernation and sleep?

The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping into a state of suspended animation. The female black bear can give birth while she hibernates. The fat-tailed dwarf lemur prepares ...

How long have we known about climate change?

What is climate change, how long have we known about it, what will its effects be, and what can we do to help solve it? Hot Mess is a new PBS Digital Studios YouTube series from hosts Miriam Nielsen, Talia Buford, and...

Learning from leaves: Going green with artificial photosynthesis

Releasing too much carbon dioxide into the atmosphere, thanks to the burning of fossil fuels, isn't a good thing. But what if leaves can provide some ideas for how we can turn this 'nuisance gas' into useful chemicals...

Stephen Hawking explains black holes in 90 seconds

What are black holes? What's happening inside of them? You can't tell from the outside... but could you travel through one to find out? From his BBC Reith Lecture and animated by Aardman Studios for BBCRadio4, British...

L’orchestre d’hibernation animaux and how animals hibernate

A flute playing wood frog who freezes. A bassoon blowing painted turtle who (ahem) breathes through its butt. A trumpet blasting common poorwill who falls asleep anywhere, anytime. A harp plucking mosquito who goes in...

The Engineering of the Drinking Bird

How is a drinking bird like a heat engine? In this video from Engineer Guy Bill Hammack, we can see how this famous drinking/dipping bird toy "exploits a temperature difference to convert heat energy to a pressure dif...

The surprising interactions between copper and neodymium magnets

Experiments with super strong neodymium magnets and copper! These surprising demonstrations of magnetic damping go beyond the magnet through a copper tube demo that we've previously seen. Watch as Night Hawk in Light ...

Powered by Poop at the Straus Family Creamery

Farms around the world are embracing sustainable practices and circular economy models that can help fuel and fund their farming as a part of the business. In this Flipside Science video from the California Academy of...

Nowhere and Everywhere at the Same Time, No. 2

Swinging plumb bobs hang in a gridded formation across a large room as visitors attempt to walk among them without making contact. The installation, Nowhere and Everywhere at the Same Time, No. 2 by William Forsythe, ...

Homemade marble track demonstrations by science teacher Bruce Yeany

Science teacher Bruce Yeany uses this collection of physics marble tracks to introduce and reinforce his students' ideas about perpetual and kinetic energy, motion, acceleration, inertia, and more. The tracks—stringle...

How a failed invention lead to a potentially life-saving new idea

Inventor Hahna Alexander spent years developing an idea that people said they really liked: Shoes that generate power as you walk, making it possible to charge a battery with them. But after starting a company and tes...

How do solar panels work?

The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? ...

Engines of Destruction: The Science of Hurricanes

Harvey, Irma, Jose, Katrina, Maria, Sandy. Hurricanes have been major news stories in 2005 and 2012, and continue to be in 2017, starting in August when Harvey crossed the Caribbean and made landfall in Texas. What ca...

You’re A Firework (Scientifically Speaking)

"You have more in common with a firework than you might think. The same process that powers those explosions is going on inside a grill when you cook a hot dog, and inside your body when you eat that hot dog." Sku...

Sandwich Bag Fire Starter

The intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun's rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fol...

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