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The surprising secrets of hummingbird flight

Adults Animals Life Nature
Dig into the incredible fighting, feeding, and flying capabilities of hummingbirds.

Which Will Kill You First?

Adults Biology Health Human
The body can get a whole lot colder - but not a whole lot hotter - before we die. Why is that?

Brad Makes Fermented Pasta Sauce | It's Alive | Bon Appétit

Adults Film Food Human
It's Alive with Brad Leone is back for episode 80 and this time Brad is making fermented pasta sauce.

New Feature - Release Exercise Answers

Teachers Teacher Cafe
Exercise answers are now hidden from the students by default. You can release the answers at any time by clicking on this icon.

New Feature - Share Exercises with Multiple Classes

Teachers Teacher Cafe
Teachers can now share an exercise with multiple classes at once.

This is why we can't have nice things

Adults Education Life Technology
This video is about stuff: light bulbs, printers, phones and why they aren't better.

Why every world map is wrong - Kayla Wolf

Adults History Human World
Dig into the inaccuracies of flat maps and how different map designs can shift our point of view.

World’s Most Expensive Mango

Adults Food Human Industry
A friend from out of town gifts you with a delicious-looking mango. An odd gift but who can deny a bite of the juicy fruit! You cut into only to find out that this mango cost $3,600!

Can you solve the fantasy election riddle? - Dennis E. Shasha

Adults Education Human Math
After much debate, the realm has decided dragon jousting may not be the best way to choose its leaders, and has begun transitioning to democracy.

What’s the best fuel for your car?

Adults Automotive Nature Science
Dig into which fuel— gasoline, electric, biofuels, or electrofuels— is both affordable for consumers and sustainable for the planet.

Why "Nothing" Matters in Science

Adults Data Science Math Science
Null results often get a bad rap, sometimes characterized as a study "finding nothing," but there's a lot we can learn from studies whose results fail to support their hypotheses.

The Ridiculous Way We Used To Calculate Pi

Adults Education History Math
For thousands of years, mathematicians were calculating Pi the obvious but numerically inefficient way. Then Newton came along and changed the game. This video is sponsored by Brilliant.

How much land does it take to power the world?

Adults Industry Technology World
Explore the sustainability of fossil fuels, nuclear power, and renewable energy and how much space each of these power sources use.

The Problem With Life Expectancy

Adults Health Human Psychology
In order to truly understand differences among animal lifespans, we need to stop thinking about a specific number and start thinking about a distribution.

How much electricity does it take to power the world?

Adults Education Technology World
Discover how much electricity humanity uses, and how clean energy sources could help revolutionize our energy supply in the future.

What if the World turned to Gold? - The Gold Apocalypse

Adults Education Environment World
The Map of Evolution and other sciency posters, researched and designed with love, are now available on the kurzgesagt shop.

Illusions of Time

Adults Education Human Psychology
Your brain is a time machine!

How would you finish the sentence, “Imagine if…”? - Sir Ken Robinson

Adults Culture History Human
Share how you would reimagine the world by finishing the sentence “Imagine if…”

How Wildfires Generate "Never-Ending" Storms

Adults Ecology Environment Nature
Under the right conditions, wildfires can form clouds and generate firestorms, which last far longer than normal thunderstorms.

Sticky 5 Spice Ribs | Jamie Oliver

Adults Family Film Food
There's no clean way to eat ribs - so get stuck in. Jamie's Chinese 5 Spice Ribs are an epic weekend feast. Sweet, juicy and absolutely moreish! A real winner!

Why Robots That Bend Are Better

Adults Education Science Technology
Robots of the future may be softer, squishier and bendier than robots today. This could make them ideal for space exploration. Check out http://kiwico.com/Veritasium50​ for 50% off your first month of any subscription!