Topic: power

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The powder that can turn sludge into clean drinking water

When people don't have access to clean drinking water, they can become ill or worse from water-borne bacteria and viruses, disease-causing microorganisms, and other pollutants. In DRINKING NASTY SWAMP WATER (to save t...

Smash and Grab, a Pixar Sparkshorts film

In Smash and Grab, an action-packed, sci-fi Sparkshorts film from Pixar, two robots work diligently to power the engine car of a locomotive. Together, they make the best of the grind, until one discovers that there ar...

Notable Women, an AR app that adds 100 historic American women to U.S. currency

Notable Women is an augmented reality experiment that lets anyone see 100 historic American women where they’ve historically been left out: U.S. currency. Discover the accomplishments of activists, artists, scientists...

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...

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...

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...

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...

The rise and fall of the Inca empire

It was the western hemisphere's largest empire ever, with a population of nearly 10 million subjects. Yet within 100 years of its rise in the fifteenth century, the Inca Empire would be no more. What happened? With...

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...

The complicated history of surfing – TED Ed

Today, surfing is a multi-billion-dollar global industry, with tens of millions of enthusiasts worldwide. For some it’s a serious sport; for others, just a way to let loose. But despite its casual association with fun...

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? ...

Why don’t perpetual motion machines ever work?

Perpetual motion machines — devices that can do work indefinitely without any external energy source — have captured many inventors’ imaginations because they could totally transform our relationship with energy. Ther...

An ‘Awesome’ 360° View At America’s First Offshore Wind Farm

At 5:30am on May 1, 2017, the Block Island Wind Farm replaced a local diesel generating plant and became America's first offshore wind farm. According to Business Insider, "it will emit about 40,000 fewer tons of gree...

1953: Preserving and operating a wimmenumermolen polder mill

In a 250 year old polder mill in Noord Holland, Eric Zwijnenberg pumps excess water out of the area to avoid flooding. The drainage mill was first rented by his parents as a summer vacation house in 1953... After ...

Water powered hammer (Monjolo) – Primitive Technology

For farmers, millers, engineers, and artisans who live near a river or stream, a monjolo or kara-usu—a water powered hammer—can slowly grind grains into flours or soft stones into powders without repetitive human effo...

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