What is surface tension?
What is surface tension?

In this mesmerizing video, see how a water strider walks on water, and how a drop of milk in water actually stretches the water's surface instead of breaking it. It has to do with the elastic property of the water surface, a phenomenon called surface tension.

How to Make a Duct Tape Coin Pouch
How to Make a Duct Tape Coin Pouch

To make this DIY Duct Tape Coin Pouch, gather a cutting mat (or ruler) an x-acto knife (or scissors), a ziplock bag, and two different colors of duct tape. Sally shows us how to build this coin pouch in just a few snappy minutes. Get creative with colors or patterns,...

NEBULAE: A Cosmic Meditation
NEBULAE: A Cosmic Meditation

Watch this stunning footage taking you deep inside a space nebulae. "A cloud that veils one of nature's secret places. This is a stellar nursery, a place where stars are born. They condense by gravity from gas and dust until their temperatures become so high that they...

What is Dust Made Of?
What is Dust Made Of?

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend together into a nondescript...

How Musical Notes and Beats Go Together
How Musical Notes and Beats Go Together

Learning about the duration of musical notes — their various lengths, names, and how they interact with underlying beats in order to create rhythm — can be challenging. This video was produced to make that process "upbeat" and fun without oversimplifying the basic...

An Electric Guitar Made From 1,200 Colored Pencils
An Electric Guitar Made From 1,200 Colored Pencils

Burls Art shows us how he built a fully-functioning electric guitar from 1200 colored pencils, epoxy, lots of sanding, and a whole lot of patience! Watch each mesmerizing step in this video. He even plays a song on it at the end. 

Bumblebee Barf: How it Creates Queens
Bumblebee Barf: How it Creates Queens

For honey bees, making a new queen is as simple as adding royal jelly, a unique protein rich secretion, to the cell of a growing larvae. This fairly well studied addition causes a cascade of physiological changes in the growing larvae and voila! A queen is born....

What is Fire? A Solid, Liquid, or Gas?
What is Fire? A Solid, Liquid, or Gas?

"Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in endless incarnations… But what...

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