Tag: light

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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...

Tokyo roads transform into dazzling tunnels of light

Filmmaker Hiroshi Kondo transforms Tokyo's street lights into pulsing, dazzling, kaleidoscopic tunnels of light in this experimental motion graphics video: Eye Know. Music by Ayako Taniguchi.

Minute Physics: Why are Stars Star-Shaped?

If we know that stars are massive spheres of hot gases, then why do we draw them with lots of twinkly points? Why doesn't "star-shaped" mean a round shape? The answer: We see stars as pointy (and so does the Hubble Sp...

How the Sun Sees You: Revealing human skin in ultraviolet light

Artist Thomas Leveritt set up a ultraviolet camera and viewing monitor in Brooklyn's Prospect Park to show people what their skin looks like in ultraviolet light. This is "how the sun sees you." The revealed freckles ...

Spectroscopy of Stars – Wonders of the Universe

Understand what the universe is made of by looking at the light of its stars. In this clip from Wonders of the Universe – Stardust, Professor Brian Cox demonstrates how chemical elements emit a unique set of colors wh...

Making a wooden lampshade from a tree stump

Watch New Zealand-based woodturner Sören Berger turn a radiata pine tree stump (originally cut down for firewood) into a unique, hand-crafted lampshade. On a lathe, he painstakingly alternates between shaving the exte...

Watch a time lapse sunset through a solar telescope

Seeing the sun set can already be a breathtaking experience, but observing the sun with a solar telescope reveals incredible details — such as sunspots and solar filaments — that we could never safely see ...

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...

OliveUs: Shadow Puppets

Siblings Betty, Ralph, Maude, Olive, and Oscar put together a few easy-to-make Shadow Puppets (as June watches) in this charming 2013 short by Olive Us and Tiger in a Jar. 

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...

Making Deepti Nair and Harikrishnan Panicker’s Rise and Skate

Watch Denver-based Deepti Nair and Harikrishnan Panicker build Rise and Skate, a six foot by six foot paper cut light box for skateboard art fundraiser Bordo Bello at the AIGA National Cente...

Janine Jansen – Violin Concerto in A Minor (with LEDs and lasers)

With LEDs, lasers, a “light bow” and special lighting surrounding her, violonist Janine Jansen plays Violin Concerto in A Minor by Johann Sebastian Bach. Video by London’s ...

How to: Glowing Oobleck!

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...

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...

The Beginning of Everything: The Big Bang

From the team at Kurzgesagt, let’s explore what we know about The Beginning of Everything — The Big Bang: Has the universe a beginning or was it here since forever? Well, evidence ...

A Male Sapphirina copepod (or Sea Sapphire)

This is a male Sapphirina copepod or Sea Sapphire, transparent and only a few millimeters long, but attention-grabbing when they seem to emit an incredible blue flash. What causes luminous color from nothing? The R...

Science Demo: How to make Pearls of Water

Gravitational acceleration + optical illusions + how to! In this Get Set… Demonstrate, science teacher Alom Shaha shows step by step how to create Pearls of Water, a physics-defying dem...

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