Topic: how things work

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Conductive copper dominoes topple to turn on this lamp

Why simply flip a switch when you can turn on a lamp with a domino chain reaction instead? This is a copper domino light created by London-based design studio Glithero. Tip over the first conductive copper switch, the...

Florida’s mangrove swamp ecosystem illustrated

Go on an illustrated adventure through a Florida mangrove swamp. New York Times best-selling author Rachel Ignotofsky has teamed up with animator Leo Thom and The Mangrove Action Project for this quick animated introd...

The Importance of Setting in a Story

The characters, the plot, the conflict they're facing, and the overall theme are all key components of a good story. But there's another important narrative element that provides context for everything that's going on...

How does sound travel to our brains?

How does a sound, like music played on a trumpet, travel from the source through our ears and to our brains? This animated video from the National Institute on Deafness and Other Communication Disorders describes the ...

The ‘Swiss Army knife’ legs of a house centipede

So. Many. Legs. Thirty legs arranged in a fluttery burst-like arrangement. This is the Scutigera coleoptrata, a house centipede. And though some may think they're creepy or gross, or dangerous to humans (they're not),...

Is climate change making hurricanes worse?

"So the important thing to understand about hurricanes is that they only form over warm water. Think of warm water as a fuel to the engine that is a hurricane. The hurricane forms when warm air over the ocean rises. A...

Why do goats have rectangular pupils?

In this 'I Wonder Why' episode from World by Charlie, Casey Engelman wants to know why goats have rectangular pupils. Her brother and host Charlie Engelman didn't know either, so they did some research. Those hori...

Raindrops: What do they really look like?

When you draw raindrops, how do you draw them? Are they tear-shaped with the point at their tops? Is that really what raindrops look like? Dr. Joe Hanson asked that very question. He then tested what happened to water...

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...

The benefits of sea cucumber poop

There are about 1,250 different species of sea cucumber across the world's oceans. This is Thelenota anax. And yes, it's doing what you think it's doing. Sea cucumber poop is surprisingly important for the ecosystem. ...

Fabulous Food Chains and The Dirt on Decomposers

Everyone eats, right? But how does that food get the energy to power you? In this episode of Crash Course Kids, Sabrina talks about the way energy moves, or flows, through an ecosystem and how that movement forms Food...

How do US Supreme Court justices get appointed?

There’s a job out there with a great deal of power, pay, prestige, and near-perfect job-security. And there’s only one way to be hired: get appointed to the US Supreme Court. But how do US Supreme Court Justices actua...

Types of Triangles, a Flocabulary math music video

This triangle is acute. Right triangle, obtuse. Isosceles, scalene. Equilateral, now you know the whole team. Learn the basics of triangles with Types of Triangles, a catchy and informative math music video from th...

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...

Les machines impossible, an animated series for the Centre Pompidou

What happens to a bowling ball after you bowl with it? How do vending machines really work? What happens to your luggage when you check it in at the airport? What's inside a street organ? In 2017, Centre Pompidou m...

LEGO in Real Life: Creating a classic duck pull toy in LEGO stop motion

A boy creates a wooden duck pull toy in a woodworking workshop, but the materials aren't wood. It's all LEGO... even some of the tools and the paint. This new stop-motion animation from Brick Bros Productions riffs of...

The World in UV

See The World in Ultraviolet, a similar but strange view compared to what our human eyes perceive in the visible spectrum. In this Veritasium video, Derek Muller explores how the ultraviolet makes eyeglasses, flowers,...

Use a 9-volt battery to break water into its elemental components

In the 1987 miniseries The Ring of Truth: An Inquiry into How We Know What We Know, Philip Morrison proves that a water molecule is composed of two hydrogen (H) atoms & one oxygen (O) atom with a simple demonstration....

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