Tag: heat

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Power of Optics: A light-powered Rube Goldberg machine

In this commercial for au Hikari, one of Japan’s high-speed optical internet service providers, a Rube Goldberg machine is "powered" by a single beam of light that travels via mirrors, magnifying glasses, and reflecti...

A match being struck as seen with Schlieren technique

From RMIT University, watch a match being struck and lit, captured by a technique called Schlieren flow visualization. From FY! Fluid Dynamics: The schlieren optical technique is ideal for visualizing differences ...

Summertime Science: Sunburn, Sweat, and Wrinkly Fingers

Why do we sweat? Why do our fingers wrinkle in water? Why do we get sunburns? Joe Hanson explains it all in this summer science episode of It's Okay to Be Smart. Bonus: find out what those SPF numbers mean on your sun...

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...

The Burrowing Owl’s Cozy Home

Owls that live underground! The Burrowing Owl's Cozy Home is a vacant prairie dog hole, a cool alternative (around 59F or 15C) to the extreme heat above ground. They eat small rodents, insects, amphibians, and reptile...

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...

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...

Match burning in slow motion

What’s happening when a match is lit? From Answers.com:  Matches contain sulfur, glass powder, and an oxidizing agent as the components in the match head. When you strike a match, the ...

What is a Volcano?

What is a Volcano? from Twig World Films. 

The Leidenfrost Maze

The Leidenfrost Maze, designed and built by Carmen Cheng and Matthew Guy at the University of Bath, demonstrates how Leidenfrost droplets can be self-propelled in a controlled way by the jagged...

How do you turn rubbish into energy?

BBC News: How do you turn rubbish into energy? Find out how the largest energy recovery facility in Oslo, Norway processes waste and converts it into approximately half of the city’s energy. The integrated waste...

HeadSqueeze: Why Do Hot Things Glow?

Why Do Hot Things Glow? HeadSqueeze's Greg Foot answers the question with a bit of animated help. There are more atoms and a diverse set of vibration videos in the archives.  Thanks, John Oxton-King.

How to build a solar oven

From a yard in Kampala, Uganda, Moses explains how to build a solar oven using a tire, some glass, newspaper, silver foil, tape, a black pot, and a few hours. If you’re cooking outside or don’t have an oven, solar ...

TED Ed: The ABCs of Gas

Using chalk drawings and familiar, hands-on examples, Brian Bennett and TED Ed explain gas properties in The ABCs of Gas – Avogadro’s Law, Boyle’s Law, and Charles’s Law, via explore-blog. T...

Tour a state-of-the-art glass factory

In February 2012, this O-I BJC state-of-the-art glass factory opened in Vietnam, just 60 kilometres south east of Ho Chi Minh City. Filmmaker Peter Scheid created a How It’s Made traile...

It’s Okay To Be Smart: What is wind?

We were just watching how wind (and so many other things) can get going with the spin of the Earth, now let’s go deeper and find out more about what wind is with PBS’ Dr. Joe Hanson of It’s Okay To Be Sma...

Picking up NASA’s 2,200 degree thermal tiles with bare hands

Recorded on a Kennedy Space Center tour before the launch of the last Space Shuttle mission (Atlantis), watch tour attendees pick up NASA’s 2,200 degree thermal tiles — specially designed, coated LI-900 c...

When a volcano erupts underwater

Swim down under Hawaiian waters with PBS Digital Studios’ UnderH20 team to watch how lava from the rumbling Kilauea crater bursts into the Pacific Ocean, and then quickly cools to form ...

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