Topic: energy

Sort: Date | Title | Sort Ascending
View:

Cooling without polluting: Two new green air conditioning innovations

The starry night sky seems remarkably distant from the topic of air conditioning, but it’s revolutionizing the field in quite an unexpected way. In this episode of "The Spark," watch how scientists from across the glo...

How to make a rocket

"What's the best scientific formula for a powerful rocket with oxidizer and fuel?" In this video clip from Bang Goes The Theory Series 5, via BBC Earth Lab, we get a quick peek at the mix of chemistry and physics that...

Geothermal energy in Iceland

Iceland is a geothermal energy pioneer. Their unique geology, thanks to volcanism along a rift in the Eurasian tectonic plate and North American tectonic plate, provides a sustainable advantage: Heat from the ground. ...

Using seawater and sunlight to grow sustainable food in the desert

Australia's Sundrop Farms uses sunlight to desalinate seawater. The resulting fresh water is used and re-used to power and irrigate four hydroponic greenhouses with 175,000 tomato plants in each. Those sustainable yea...

Soil Life in Action: Bioturbation with and without soil fauna

Bioturbation is the mixing of (plant) residues into soils and sediments by biotic activity. It is one of the fundamental processes in ecology, as it stimulates decomposition, creates habitats for other (micro)fauna an...

The Solar Grandmothers of Ambakivao, Madagascar

Not having access to electricity, life in Ambakivao, Madagascar was dark. A group of grandmothers decided to change that, bringing light to their community by becoming the village’s first solar engineers. With the hel...

The Science Of Firework Color

Sodium in yellow bursts, strontium in red, calcium gives us orange, barium for green, and copper for blue hues... and there are more where those came from. The science of firework color, as explained above by SkunkBea...

A lemon-powered supercar and making the world’s largest lemon battery

Can you power an electric supercar with lemon-power? It depends on the lemon-power. In the video above, science YouTuber and former NASA JPL engineer Mark Rober attempts to fill a 48-kilowatt-hour battery with electri...

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 ...

« Prev


 
Not finding what you're looking for? A few suggestions:
• Fewer words might give better results. Look up cats instead of funny cats.
• No need to search with the words videos or for kids included.
• Use related words: If searching for iceberg isn't working, try ice or glacier.
• Is everything spelled correctly?
• Browsing topics might help, too!