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Why are sloths so slow?

Around 35 million years ago, Earth was populated with giant, prehistoric ground sloths like Megalonyx jeffersonii (named after Thomas Jefferson), Paramylodon, and Megatherium who, until around 10,000 years ago, roamed...

Pearl Fryar’s world-renowned topiary garden of rescued plants

In Bishopville, South Carolina, Pearl Fryar is a local gardening legend. When he first moved to the small town in the 1980s, he was almost unable to build his house because neighbors feared that as an African American...

Cassini’s Grand Finale, our daring last months orbiting Saturn

"After 20 years in space, NASA's Cassini spacecraft is running out of fuel, and so to protect moons of Saturn that could have conditions suitable for life, a spectacular end has been planned for this long-lived travel...

Creating The Never-Ending Bloom: John Edmark’s spiral geometries

Artist, designer, inventor, and Stanford professor John Edmark creates sculptures that are driven by precise mathematics, but his interest in spiral geometries is driven by something more enigmatic... "a search for un...

How Do Pelicans Survive Their Death-Defying Dives?

Unlike American White Pelicans, who scoop up fish at the water's surface, California’s brown pelicans rocket down from the sky, plunging toward the ocean from as high as 65 feet. This episode of Deep Look explains how...

Robotic Loop: Train vs. Robot

Mechanical engineering student Christian Schürch programmed a FANUC M-2iA/3S robot to assemble and disassemble two tracks for a traveling toy train. Schürch constructed gripper fingers for the school project, as well....

Japanese manhole covers, a factory tour – ONLY in JAPAN

Whether they're in plain metal or decorated in bright colors, city manhole covers stand out in Japan's bustling streets. Personalized with bold yet intricate illustrations that highlight local sights, symbols, and sto...

Minoule (2014)

A mischievous cat enjoys his lazy day on a city windowsill until a small canary across the street catches his eye and works up his appetite. From director Nicolas Bianco-Levrin, this is Minoule (2014).

A giant iceberg runs aground in Newfoundland’s Iceberg Alley

This iceberg is the first iceberg of the season to float by Ferryland, a small village in Newfoundland... and then it became stuck. Rising above the water by 15 stories and descending into the depths by an unknown amo...

The three different ways mammals give birth

All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they ...

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Why are sloths so slow?

Around 35 million years ago, Earth was populated with giant, prehistoric ground sloths like Megalonyx jeffersonii (named after Thomas Jefferson), Paramylodon, and Megatherium who, until around 10,000 years ago, roamed...

Ben Vereen sings Pure Imagination on The Muppet Show (1977)

Watch actor, dancer, and singer Ben Vereen try to cheer up Droop with some Pure Imagination, a song from Willy Wonka & the Chocolate Factory (1971). They're also joined by some unusual creatures. The performance is fr...

This is what your vocal cords look like

Fascinating! See what your vocal cords (or larynx) look like when you’re speaking or making sounds. Your larynx is where pitch (musical tones) and volume are controlled. You can also mak...

Rotating head illusion and Yes/No by Markus Raetz

Swiss painter, sculptor, and photographer Markus Raetz creates lyrical art that explores illusion and perception. In the piece above, rotating leaves of cut metal reveal a “turning”...

Todd McLellan: Disassembled / Things Come Apart

Photographer Todd McLellan has been on my mind ever since I saw this post on making an Inventor’s Box: a collection of tools and second-hand electronics for kids to disassemble, organiz...

How Small Is An Atom?

Using a strand of hair, your fist, rice and sand grains, as well as the room you're sitting in right now (assuming it's not a huge gymnasium), let's try to visualize the basic building block of everything around us: A...

Erik Åberg’s Ghostcubes

Bending on almost-invisible hinges, Ghostcube is a system of wooden cubes that can create different structures depending on how they’re twisted and rearranged. They’re made by Stoc...

Drifting With the Ice: Life on an Arctic Expedition

For five months in 2015, a team of researchers drifted with polar ice, their ship tethered to an ice floe as they collected data to help them better understand how the loss of sea ice will affect the planet. The air a...

How to make a DIY Drawbot

Have some colored felt tip markers, some self-adhesive velcro and a milk frother? If so, then get ready to make a “robot” that can draw. During the Minimondi Festival in Parma, ...

Kid Favorites

Pitagora Suitchi – 9 minutes of Japanese Rube Goldberg machines

We love Rube Goldberg machines, and have posted about these short films from Japan’s NHK educational TV show, Pitagora Suitchi (PythagoraSwitch) before, so it’s no surprise that t...

Look Up! The Billion-Bug Highway You Can’t See

When British scientist Jason Chapman told us... there are 3 billion insects passing over your head in a summer month, he was talking about his survey in Great Britain. Closer to the equator, he says, the numbers shoul...

Aug(De)Mented Reality by Marty Cooper aka Hombre_McSteez

Aug(De)Mented Reality by animator Marty Cooper: iPhone photos and traditional animation cels – Sharpie and White-Out drawings on transparencies – join forces in this collection of amusing, "creature-infest...

Friends With You – Cloudy

Cloudy is a happy animated short by artists Samuel Borkson and Arturo Sandoval III of Friends With You. Welcome to the clouds!  From IAmOther: This animated short is an exploration into the clouds; a sweet, vi...

Sign Songs – Electric Company

In the 1970s, You’re a Good Man, Charlie Brown composer Clark Gesner made a series of found signage-based videos for PBS’ The Electric Company. The song above is our favorite becaus...

Ambiguous Cylinder Illusion by Kokichi Sugihara

Second place winner of the Best Illusion of the Year Contest 2016, this is the Ambiguous Cylinder Illusion by mathematics professor Kokichi Sugihara of Meiji University in Tokyo, Japan. The direct views of the obj...

Most popular videos

How to make a paper airplane that flies far: Strike Eagle

A tutorial by paper airplane engineer Mahir Cecen, this is how to make a paper airplane that flies far. In fact, all of Cecen's paper plane videos are titled that, so you'll have to test them all out and let us know w...

The Hammer-Feather Drop in the world’s biggest vacuum chamber

...though in this case, "the hammer" is a bowling ball. In this excellent clip from the BBC's Human Universe: Episode 4, Professor Brian Cox visits NASA’s Space Power Facility in Ohio, home of the world's biggest vacu...

How to Make the World’s Simplest Electric Toy Train

How to make the World's Simplest Electric Toy Train from the Amazing Science YouTube channel, a super delightful science experiment that will wow kids, friends, family, science classes... pretty much everyone on the p...

Watch snowflakes form in time lapse through a microscope

The time lapse formation of snowflakes, recorded with a macro lens by Vyacheslav Ivanov. Music: Aphex Twin - Avril 14th. Via Colossal: "Ivanov confirms from his home in St. Petersburg that th...

Charlie Chaplin in the lion’s cage: The Circus (1928)

In this scene from The Circus (1928), a Charlie Chaplin classic film and now a favorite in our house, Charlie gets trapped in a lion's cage. It required around 200 takes with a real lion, and is one in a series of sil...

How playing an instrument benefits your brain – TED Ed

Your brain is a muscle. When you give it more challenging exercises, you're strengthening your brain's abilities to learn and grow. Now add some music to the mix: When you listen to music, multiple areas of your b...

Joyous String Quartet: Firework and Vivaldi’s Summer (Presto)

From Joyous Music School in Long Island, New York, this is perhaps the youngest string quartet ever: The Joyous String Quartet. Above, they perform Katy Perry's Firework. Below, from Antonio Vivaldi's The Four Seasons...

How to fold The World’s Best Paper Airplane

If you want to fold the world's best paper airplane, how do you know it's the best? Watch the video! In 2012, former Cal Berkeley quarterback Joe Ayoob officially broke the Guinness World Record by flying a John Colli...

How To Draw Your Hand In 3D

Here’s a fun, quick trick: How To Draw Your Hand In “3D”. What other things around the house or outside can you use this technique with?

Friends With You – Cloudy

Cloudy is a happy animated short by artists Samuel Borkson and Arturo Sandoval III of Friends With You. Welcome to the clouds!  From IAmOther: This animated short is an exploration into the clouds; a sweet, vi...

Phases of the Moon, animated with Virtual Moon Atlas

Phases of the Moon, a beautiful video animation created using Virtual Moon Atlas and accompanied by Beethoven’s Sonata No. 14, (Opus 27, No. 2). Related watching to better understand th...

Mr Rogers: How Crayons Are Made

Mix hot liquid wax, hardening powder, and some color pigment. Pour the mixture into a mold of small cylinders, and after it cools, pop them out! Label them, collate them, and box them. This classic 1981 crayon factory...

An illuminated visualization of Bach’s The Well Tempered Clavier

Johann Sebastian Bach's The Well Tempered Clavier, with music performed by Pierre-Laurent Aimard in a film by Alan Warburton. Before starting work on our Well-Tempered Clavier animation, director and visual artist ...

Let It Go performed with wine glasses, pots and pans

This cover is the bridge between a popular animated film (that you may have heard of) and music made with “instruments” found in the kitchen – one of our favorite DIY activities. Th...

How does the internet work?

How does the internet work?! The World Science Festival explains it… The video lets you ride shotgun with a packet of data—one of trillions involved in the trillions of Internet in...

And in case you missed it...

The NY Sunworks Science Barge & teaching sustainability

Powered by wind turbines, solar panels, and a biodiesel generator, the NY Sunworks Science Barge (now in Yonkers, New York) is a model for energy-efficient, sustainable urban farming. Using a hydroponic system that re...

CUSTOMTONE by Fracture & Neptune

A music video for Fracture and Neptune’s Customtone, animated by Emilski and Nick Duggins.

The Sagan Series: The Frontier Is Everywhere

This is not a NASA video. It’s a fan-made video by Reid Gower, who wanted to illustrate how NASA could better-communicate their mission through social media: "In all of their brilliance, NASA seems to have forgo...

BBC Proms 2012: Handel

What’s better than watching an orchestra and its conductor — and all of those instruments! — up close? From the BBC Proms 2012:   Hervé Niquet leads Le Concert Spirituel in the Prélude from Hande...

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