Tag: physics

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Why do ice cubes crack in drinks?

Here's an easy experiment: Take ice straight from the freezer and drop it in a glass of water. Listen and watch for the crack. Why does it do that? Professor Martyn Poliakoff of the Periodic Table of Videos team e...

How a locomotive works: GE Masterclass with Baratunde Thurston

In this promotional video series from General Electric, GE Masterclass with Baratunde Thurston, we go behind the scenes of GE's Global Research Center to explore engineering marvels, like how a freight locomotive work...

Spiders Tune Their Webs Like A Guitar

Much more than just a net to catch prey, spider webs can transmit lots of information about what has been caught or what might be visiting. Oxford researchers have recently discovered that the strands of silk vibrate ...

FlippyCat’s Spectacular Domino Rally Stunt Screenlink

Domino enthusiast Flippycat uses a huge collection of Domino Rally sets to screen link this longer chain reaction together -- 35 scenes total (all listed here in the notes). Screenlinks are separate tricks that are ed...

The Fire Lab and the Mysterious Science of Fire

How does fire spread? How do different forest materials fuel it? How can firefighters better understand its behavior in order to control it? Why is the physics of fire so counter-intuitive and mysterious to us? At Th...

How to: Popsicle Stick Chain Reaction

Have you seen that crazy popsicle stick chain reaction video in the archives? This Sick Science tutorial explains how to make it.

The beautiful physics and math of sneezes

If you don't cover your mouth when you sneeze, that sneeze and the germs within it are explosively set free into the surrounding area. But where do the droplets travel and how far can they reach? No one had done much ...

Unwinding the Cucumber Tendril Mystery

Watch plants grow (with time lapse)... or specifically, learn more about cucumber plant tendril coil movement and why it was confounding to scientists for so long. From 2012, this is Science Friday's Unwinding the Cuc...

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

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&...

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,...