Topic: physics

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The Neutral Buoyancy Lab

If you have underwater training or testing to conduct, NASA has the Neutral Buoyancy Lab for you! Cranes! Diving suits! Workshops! Hyperbaric chambers! This video is a strange and fabulous mix ...

Mercury Hz: Sound waves passing around & through mercury

From “science on a budget” YouTuber Nick Moore, watch this drop of mercury being vibrated from ~120Hz down to ~10hz. We've seen resonance demonstrated before in Chladni Pattern v...

Epic Pen Spinning

Watch as pen spinners Ian Jenson and 吳宗諺 (PPM) perform some epic pen spinning, complete with a few great slow motion moments that really showcase what’s going on. This short from Taiwan&...

Schlieren flow visualizations: What Does Sound Look Like?

What Does Sound Look Like? NPR’s SkunkBear shows us the differences in fluid densities — in the form of compression waves in a gas, the air that surrounds us — thanks to the light passi...

Bionic Kangaroo

Festo HQ, the engineering team that brought us Aqua Penguins, Aqua Jellyfish, dragonfly-inspired BionicOpters, and a robot that flies like a bird can now add Bionic Kangaroo to their list of...

Why is ketchup so hard to pour?

That moment that ketchup transitions from a solid, high up in the ketchup bottle, to a liquid that squirts all over your fries – that moment is a big physics moment. Why? Ketchup is a non-Ne...

Slow Mo Guys: Huge Puddle Splash at 2500fps

What does it look like when a car splashes a huge wave of water out of a puddle in slow motion? We’re about to find out: Slow Mo Guys Gav and Dan got together with race car driver Ken Gushi...

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...

Grand Illusions: Tippe Top

Discovered by German physicist Helen Sperl in 1891, popularized in 1950 by Danish engineer Werner Ostberg, and demonstrated here by Grand Illusions' Hendrik Ball, this is a Tippe Top. Watch as i...

Laser-cut, flat-packed, wood DIY modular marble machine kits

A few marble machines are clickity-clacking in our archives, but never have we seen ones that are designed as laser-cut, flat-packed, wood DIY kits! Hopefully on sale soon from RetroTime.org,...

Bubble Device #2

Another project by Nicholas Hanna, who made the Water Calligraphy Device, this is Bubble Device #2. In the archives: a bubble bot, bulles de savon géantes, giant bubble explosion, how to make...

Incredible 100% LEGO Roller Coaster with Corkscrew

Using nothing but LEGO components, the team at Brickride builds supercool rollercoasters. The one above: Incredible 100% LEGO Roller Coaster with Corkscrew. Watch a time-lapse of how they put ...

Science Demo: Electromagnetic Induction

Generate your own electricity with some wire, a magnetic field, and the relative movement between the two of them: Alom Shaha explains electromagnetic induction using this hand-powered – or per...

Glowing Oobleck! How to make magic mud

Glowing oobleck! This video by Grant Thompson explains how ordinary potatoes and some tonic water can be transformed into a Magic Mud with the help of a black light. In the archives: more oob...

DIY Experiment: Electric Dough Playdate

From PBS’ Adventures in Learning, Jennifer Cooper hosts an Electric Dough playdate to make and test circuits. For this project, developed by engineering educator AnnMarie Thomas, you’...

Reversing Arrow Illusion

We just tried this super easy Reversing Arrow Illusion, and it is, in fact, super easy. Draw two left-pointing arrows on a piece of paper and then put a clear, empty glass between you and thos...

Fred Astaire’s famous dance scene in Royal Wedding (1951)

Hang on to your chairs and lamps. This is You’re All the World to Me, Fred Astaire’s famous 1951 dance scene in Royal Wedding. How did he do it? We’re keeping that under wraps at...

Skunk Bear’s Click to Enlarge: Popcorn

From NPR’s Skunk Bear, POP in and watch the science and history of popcorn, explained with the assistance of a microscope and a high speed camera. Click to Enlarge: Popcorn. Thanks, Heathe...