Why are fish fish-shaped? - Lauren Sallan

Why are fish fish-shaped? – Lauren Sallan

In tropical seas, flying fish leap out of the water, gliding for up to 200 meters using wing-like fins, before dipping back into the sea. In the Indo-Pacific, a hunting...

Why can't you divide by zero? - TED-Ed

Why can’t you divide by zero? – TED-Ed

In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have been warned not to break: don’t...

How do brain scans work? - John Borghi and Elizabeth Waters

How do brain scans work? – John Borghi and Elizabeth Waters

As far as we know, there’s only one thing in our solar system sophisticated enough to study itself: the human brain. But this self-investigation is incredibly challenging; a living brain...

Which is stronger: Glue or tape? - Elizabeth Cox

Which is stronger: Glue or tape? – Elizabeth Cox

The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Ancient people used this glue, made from a mixture of...

When will the next ice age happen? - Lorraine Lisiecki

When will the next ice age happen? – Lorraine Lisiecki

Twenty thousand years ago, the Earth was a frigid landscape where woolly mammoths roamed. Huge ice sheets, several thousand meters thick, encased parts of North America, Asia, and Europe. We...

How squids outsmart their predators - Carly Anne York

How squids outsmart their predators – Carly Anne York

In the ocean’s depths, two titans wage battle: the sperm whale and the colossal squid. Sperm whales use echolocation to hunt these squid for food, but even against this gigantic...

Why do we sweat? - John Murnan

Why do we sweat? – John Murnan

The finish line’s in sight and you put on an extra burst of speed. As your legs pick up the pace, your breathing gets deeper, your heart pounds faster, and...

The journey to Pluto, the farthest world ever explored - Alan Stern

The journey to Pluto, the farthest world ever explored – Alan Stern

On July 4, 2015, a NASA spacecraft called New Horizons was 5 billion kilometers away from Earth. It was only 10 days away from Pluto, after flying for 9.5 years,...

How to stay calm under pressure - Noa Kageyama and Pen-Pen Chen

How to stay calm under pressure – Noa Kageyama and Pen-Pen Chen

Your favorite athlete closes in for a victorious win. The crowd holds its breath, and, at the crucial moment, she misses the shot. That competitor just experienced the phenomenon known...

What is dust made of? - Michael Marder

What is dust made of? – Michael Marder

Meet Dermatophagoides farinae. Crawling around on eight legs, this creature has no eyes to appreciate the kaleidoscope of colors around her. She relies on her extraordinary sense of smell to...

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