Topic: how things work

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‘Electric Wind’ Can Strip Earth-like Planets of Oceans, Atmospheres

'Electric wind' on Venus may have stripped the planet's upper atmosphere of oxygen... and it "may have played a significant role in stripping Earth's twin planet of its oceans, according to new research results from t...

(Skate)ology & The Science of Skateboarding: Grinding

Kick flips, nose grinds, backside board slides... (Skate)ology! Examine gravity, friction, momentum, and other physics concepts thanks to skateboarding demos by pro skaters Boo Johnson, Dane Vaughn, Marquise Henry, Ri...

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 ...

4-Way Stop vs the Roundabout

What’s more efficient: a four way stop or a European-style roundabout? Watch how Adam Savage, Jaime Hyneman, and The Mythbusters team put it to the test to find out the answer. Updated video. If you can't see ...

A kick baler sends fresh hay bales flying on the farm

Agricultural machinery! On Rolling Oaks Farm, Marcia Johnson drives a tractor and kick baler over the harvested grass piles on the field. As the fresh hay is automatically gathered and compressed into a rectangular ba...

A bumblebee dislodges pollen in slow-mo

Sonication or buzz pollination is the bumblebee's secret weapon of resonant vibration. When bumblebees (and a few other bee species) grab onto a flower and vibrate it by flying in place, securely attached pollen is di...

A Formula One Pit Stop Explained

Have you seen the video of Ferrari’s F1 pit crew doing a pit stop in around two seconds? Even after watching it multiple times, it can be a challenge to understand how a team of nearly 20 people can work so quickly an...

A Guide To Spelling by this year’s youngest Spelling Bee competitor

The youngest contestant to participate in this year's National Spelling Bee was Akash Vukoti, a 6 year old Texan who made it to round 3 of the competition. In this video from Vox, Vukoti explains what contestants are ...

A is for Ampere – Circuit Playground

This made-for-kids video, Circuit Playground “A is for Ampere” – Episode 1, isn’t your everyday made-for-kids video. DIY electronics shop Adafruit, led by MIT engineer and Adafruit Founder Limor Fried (in the ...

A Journey To The Bottom Of The Internet

The internet is powered by over 300 heavy duty underwater cables that carry 99% of all international data from continent to continent to right at your fingertips almost instantaneously. In this episode of Nat & Lo, Na...

A LEGO lawn mower man endlessly cuts the grass

A LEGO man mows his LEGO lawn, endlessly pushing a LEGO lawn mower. This kinetic sculpture was created by Jason Allemann, aka JK Brickworks, and can be powered by hand crank or motor. The illusion of grass-cutting...

A microgravity demo in the Willis Tower Skydeck elevator

The next time you ride an elevator down 103 floors, take a scale with you, because you might want to try this microgravity experiment: In collaboration with Willis Tower, Kevin from the Museum of Science and Industry,...

A Sisyphus kinetic sculpture made with LEGO

Whether it's being powered by a hand crank or a motor, this Sisyphus LEGO kinetic sculpture by LEGO artist Jason Allemann is impressive, from the smooth movement of the figure's body to the myth-driven depictions on t...

A tumbling, glowing, furry puppet creature by Barnaby Dixon

With spiky fur on its back and a long, expressive nose on its little face, this aardvark-like creature is a charming addition to Barnaby Dixon's collection of characters. A puppet designer and puppeteer, Dixon slips a...

Amazing Chinese Popcorn Cannon

This street vendor makes popcorn with an explosive, pressure-cooking, popcorn cannon contraption, a centuries-old method. The video was filmed in Zhengzhou, China, but we’ve watched vid...

An unexpected way to inflate a balloon – Numberphile

The kamifusen is a traditional Japanese paper (kami) balloon (fusen) toy that became popular in the 1890s and can still be found in a variety of designs or decorated as spherical koi, pufferfish, penguins, monkeys, ra...

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...

Anastasia Chavez explains the 21-card trick

How can you use math to astonish your friends and family? Try the 21-card trick. Filmed for Numberphile, UC Davis Department of Mathematics Postdoc Anastasia Chavez demonstrates step-by-step how this trick works with ...

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