Topic: light

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The Glass Ribbon Machine

In 1879, Thomas Edison and his research team developed a durable carbon-filament light bulb. In the 1880s and 90s, when glass had to be blown by hand, the skilled Corning glassblowers that Edison hired could produce t...

How small are we in the scale of the universe?

In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky – what, if anything, was going to show up? But what came ...

A 3D-printed candy sorting machine

This machine sorts small candies (M&Ms and Skittles) by color. It was designed and built by Netherlands-based New Zealander Willem Pennings, who is studying Mechanical Engineering at Eindhoven University of Technology...

Building a traditional Swedish snölykta (snow lantern)

This winter I was in sweden again, and built a traditional swedish "snölykta" (snow lantern) together with my father, trying to build a larger one than we did when I was a child. And we actually managed! (Since usuall...

Star Parties In Our National Parks: Parks After Dark

Visit the Grand Canyon and Death Valley with Planetary Society volunteer and national park enthusiast CaLisa Lee as she learns about Star Parties and the Parks After Dark. Thanks to our 59 untouched national parks, wh...

‘Darkness Is My Canvas, Light Is My Brush’

Light painter Hannu Huhtamo uses darkness as a canvas for his long exposure photographs, capturing fluid light trails of flashlights and other kinds of glowing tools that he uses to draw in the air. In this video from...

Can you power your home with a bicycle?

Could you power your house with the energy that's created from pedaling a bicycle? First, let's find out how much energy a house uses and how much energy one bicycling person can store in a battery. Skunk Bear's A...

The Snail-Smashing, Fish-Spearing, Eye-Popping Mantis Shrimp

The mantis shrimp is a fascinating creature. One kind impales prey with a spear-like appendage and another smashes prey with a built-in club — the fastest attack in the animal kingdom. "At 30 times faster than the bli...

A drone changes a light bulb

How many drones does it take to screw in a lightbulb? Two. And about 9 lightbulbs. Watch this drone quadcopter change a light bulb... mostly. YouTuber Marek Baczynski and drone-pilot friend Sven attempt to switch...

On Light Pollution: The End of Darkness

What is it like to be really in the dark? Not the dark of your closet, or the dark of your room at night, but the deep darkness of there being no electricity for miles and miles around you. If there was no light pollu...

Humpback whales swim under the northern lights

Off the coast of Kvaløya island in Tromsø, humpback whales swim beneath the northern lights. The brief scene was captured by Norwegian photographer Harald Albrigtsen for Norwegian public television (NRK). Cue the auro...

Being in the video game with Augmented Climbing

If you've ever gone indoor rock climbing, you might have been trying to climb up the wall. When you go augmented climbing, the goal is a bit different, as seen in the commercial above... Have you ever wanted to be in ...

LEGO Dragon-Butterfly-Jet Magic Angle Sculpture

Created with layers and layers of LEGO pieces, magic angle sculptures appear to be completely abstract forms at first glance, but with the help of a light and rotation, they reveal their complex design. Inspired b...

Aeroponic vertical farming in Newark, New Jersey

Inside of a former laser tag area in Newark, New Jersey, Aerofarms is growing 250 kinds of leafy greens in huge air and mist-driven vertical farm. This Seeker Stories video shows how their aeroponic technology works: ...

What Really Causes Sunburns?

Why does your skin turn red and peel when you get a sunburn? In this episode of Gross Science, Anna Rothschild explains what's going on in our skin when it burns from sun exposure.

How to Find a Galaxy

How do you find a galaxy? How do you find a thousand galaxies? Astrophysicist Dr. Margaret Geller is a galaxy mapping pioneer. She and her colleagues studied the spatial distribution of galaxies in our universe by sur...

Pattern distortions seen through a glass of water

Try this classic trick at home with different shaped glasses (which shapes the water within them) and a few patterned backgrounds. As you look through the glass, you'll see the background pattern shift. Why? As the li...

These Carnivorous Worms Catch Bugs by Mimicking the Night Sky

These slimy threads are 'fishing' lines in New Zealand's Waitomo Caves. The lures are the bioluminescent glow of Arachnocampa luminosa, or glow worms. Their carnivorous larvae create a starry night sky a half a mile d...

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