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Calculating Pi (π) with Darts

Can you calculate Pi (π) by throwing darts at a square and circle target as randomly as possible? Physics Girl's Dianna Cowern and Veritasium's Derek Muller attempt the challenge, and when "randomly" doesn't happen, t...

Spend a Day With the World’s Only Grass-Eating Monkeys

Geladas, one of the flagship species of Africa’s alpine grasslands, are found only in the Ethiopian Highlands. They are the smallest vestige of a genus that millions of years ago stretched from South Africa to Spain a...

How a Bach Stradivarius trumpet is made

In this video series from musical instrument manufacturer Conn-Selmer, we see how a Bach Stradivarius trumpet is made. The mouthpiece above is shaped to the tune of Nikolai Rimsky-Korsakov's Flight of the Bumblebee. T...

I is for IC – Circuit Playground

'IC' stands for integrated circuit, and in I is for IC from Circuit Playground, Adabot learns that there's a lot going on inside of them and without them, our electronics would still be huge. From Explain That Stuff: ...

Building a soft robotic cube that jumps

How can you make a 7.6 cm (3 inch) wide soft robotic cube jump more than two-and-a-half times its height? 3-D print its hard parts, pour and cure its soft parts, and then wire it up with spring-loaded metal loops. MIT...

Seashell inspiration: Growing cement bricks with bacteria

Imagine an 8-year-old girl studying a seashell on the sand in Gulf Shores, Alabama in 1985. It's her first trip to the beach and it's a moment that will set the course of her career: “The 8-year-old version of mys...

How Scientists and Citizens Are Protecting Ancient Ruins in Peru

How can a historic archaeological site become a protected part of the crowded city that threatens to take it over for development? Pachacamac Site and Sanctuary Museum director Denise Pozzi-Escot has worked to solve t...

Sweet (& savory) morning buns with chef April Bloomfield & Tartine

In the kitchen at Tartine, San Francisco's popular bread bakery and cafe, chef April Bloomfield observes how their morning buns are made. Tartine's Chad Robertson mixes the ingredients and preps the dough with layers ...

How to practice effectively…for just about anything

Mastering any physical skill takes practice. Practice is the repetition of an action with the goal of improvement, and it helps us perform with more ease, speed, and confidence. But what does practice actually do to m...

Yukino-otani, the huge snow walls of the Tateyama Snow Corridor

Fly by drone over the Tateyama Kurobe Alpine Route, a 90 km route crossing Tateyama in the Japanese Alps. This snow corridor has become famous for Yukino-ōtani, a valley of snow with canyon-like walls that can reach 2...

Why Does Your Cat’s Tongue Feel Like Sandpaper?

If you've ever been licked by a cat, did their tongue feel scratchy like sandpaper? The scratchiness is caused by their keratin papillae, tiny claw-like spines on their tongue that help to clean their fur. Cats (Felis...

Humphead parrotfish poop helps create new island beaches

How can a hungry school of fish help to create a thriving reef island? In this clip from the BBC's The Blue Planet, neon-colored Humphead Parrotfish crunch rocks and hard corals alike as they forage for coralline alga...

A night adventure to see Nicaragua’s sea turtles

Conservation educator Phil Torres traveled to Playa la Flor and the surrounding waters in Nicaragua to document how Paso Pacifico is working to protect the sea turtles. From SeeTurtles.org: Along Nicaragua's Pacif...

A Circle Thief (まるどろぼう)

A subway rider diligently attempts to thwart the circle thief who is taking all of the useful round objects: A Circle Thief (まるどろぼう) by Tokyo-based art and design student Komoto.

Yayoi Kusama’s Infinity Mirrors

Step inside Japanese artist Yayoi Kusama's Infinity Mirror rooms, seemingly endless spaces made from mirrors, patterns, darkness, and light. The six rooms were filmed by NPR at Washington D.C.'s Hirshhorn Museum, wher...

An up close look at fingerprints and sweat glands

Zoom in to see this fingertip's epidermal ridges, those tiny lines, whorls, loops, arches, and valleys that are unique to each person on the planet. This macro and time lapse footage, filmed by Time Lapse Vision, an i...

Dark Dark Woods

Young princess Maria has had about enough of her royal life – it’s all lesson, responsibilities and duties on top of each other, every hour of every day. Overwhelmed, Maria is swept away on an adventure into the monst...

One Town, Four Elements: Ytterby

There's a small town in Sweden that has not one, not two, not three, but four elements named after it. Those elements--yttrium(Y), terbium (Tb), erbium (Er), and ytterbium (Yb)--were discovered by part-time chemist Ca...