Topic: science

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Toothpaste – Ingredients With George Zaidan

Cultures throughout history have tried a variety of things to clean their teeth... Egyptians and Babylonians brushed with twigs around 3500-3000 BC. In 5000 BC, a recipe of ox hooves, eggshells, myrrh, and pumice woul...

Welding in Space

On June 3, 1965, after America's first spacewalk was complete, the two Gemini IV astronauts, spacewalker Edward H. White II and command pilot James A. McDivitt, had trouble getting the hatch closed. They managed to, a...

The Chemistry of Skunk Spray

Skunks are infamous for their awful-smelling odor, but they don't always smell that way. Their spray, a liquid full of stinky chemicals from their anal scent glands, is used strategically to chase away predators. In t...

Skittles candy dissolves into rainbows

Science + candy = rainbows! Check out this classic and colorful trick as the artificial candy colors dissolve into hot water-fueled PGYOR stripes. YouTuber Dexter See tried it with awesome results. Here's how: Si...

Building Art Machines with LEGO Technic pieces

From The Tinkering Studio located at San Francisco's Exploratorium, enjoy these pattern making art machines built with LEGO Technic beams, gears, and pins. The Tinkering team wrote up a quick art machines experiment g...

A Sketchy History Of Pencil Lead

When fifth-graders at Green Acres Elementary in Lebanon, Oregon asked the NPR Skunk Bear team how pencil lead was made, they looked into it... way into it. From the start of the universe (with a shout out to Carl Saga...

Elemental Burning – Beauty of Science

What happens to carbon when it combusts? What does sodium look like while it burns? In Elemental Burning, creator Yan Liang's team films the combustion of five elements: carbon, sodium, phosphorus, magnesium, and sulf...

How to Design a Particle Accelerator

What is a particle accelerator and how would you go about designing one? We've heard of the Large Hadron Collider at CERN, but what of the tens of thousands of other accelerators being used in science and medicine? ...

3D printing ‘hyperelastic bone’ to mend injuries

Hyperelastic bone may be a 3D-printed solution for helping to mend our bones in the future. Cost-effective and customizable, the material is both a "structural element and a scaffold for bone regeneration," as shown i...

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...

The 1995 Hubble photo that changed astronomy

If you hold a pin at arm’s length up in the air, the head of the pin covers approximately the amount of sky that appears in the Hubble Deep Field. The iconic 1995 image is crowded, not because it’s a broad swath of sk...

The Loneliest Tree in the World

In 1895, John Medley Wood discovered a cluster of peculiar Encephalartos Woodii on the fringe of the oNgoye Forest in KwaZulu-Natal, South Africa. A basal offset of the male dioecious tree was sent to Kew Gardens in L...

Installing massive statues with engineering and care at the Met

How do you move and install a three ton statue circa 170 BC? How do you move and install a ten ton statue? In these behind-the-scenes time lapse video from the Metropolitan Museum of Art in New York City, we get to se...

Crystallization2, a 4K macro time lapse

The subjects of this project were droplets of saturated aqueous solutions containing various inorganic salts (e.g. table salt, sodium sulfate etc.). The evaporation of water initiated the crystallization processes ins...

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: ...

To Mars and Back In 150 Seconds

How does sending humans to Mars work? How long does it take to go there and come back? How do they set up shelter on the Red Planet? What about space radiation? TIME's Jeffrey Kluger gives us an animated primer: To Ma...

Osiris-Rex: Chasing Asteroid Bennu – Out There

NASA’s OSIRIS-REx space vehicle launched from Cape Canaveral on September 8, 2016, riding an Atlas V rocket into a seven year long mission to map the asteroid Bennu and the bring a sample of it back to Earth. From Ast...

The Guillemot egg, an egg that saves its own life

Guillemots are sea birds that reside in crowded colonies on rocky cliff sides. When they breed, they produce one conical egg which incubates for around 30 days on the precarious cliffside... but guillemots don't make ...