Browse

Sort: Date | Title | Sort Ascending
View:

The Archaeology of Crossrail and the history of London

The construction of London’s newest railway, which will be known as the Elizabeth line when services begin in 2018, has given archaeologists a unique chance to explore some of the city’s most historically important si...

How the food you eat affects your gut – TED Ed

The bacteria in our guts can break down food the body can’t digest, produce important nutrients, regulate the immune system, and protect against harmful germs. And while we can’t control all the factors that go into m...

Relighting “Circus Sideshow (Parade de cirque)” by Georges Seurat

French post-Impressionist painter Georges Seurat is well-known for his pointillism technique and for his depictions of life in the late 1800s. In observing his painting Circus Sideshow (Parade de cirque), we see these...

Four minutes of an armadillo digging a hole

With a leathery shell and front leg claws made for digging, armadillos burrow to find food and to make underground shelters. The armadillo in the video above, identified as a six-banded or yellow armadillo by YouTuber...

Termite clay kiln & pottery – Primitive Technology

If you lived in Far North Queensland, Australia before modern technologies were invented, how might you make a clay kiln and pottery from a termite mound? Primitive Technology takes on the challenge in the video above...

The differences between a living and a dead sand dollar

How can you tell if a sand dollar is dead or alive? Sand dollars are flat sea urchins that burrow into the soft sand. When alive, their undersides are full of "velvet-textured spines" covered with cilia, a latin word ...

Genevieve von Petzinger & the invention of graphics on cave walls

Northern Spain's Cueva de El Castillo and Cueva de La Pasiega both contain incredible specimens of Franco-Cantabrian cave art, paintings and engravings in Cantabria province and southwestern France. El Castillo cave i...

Diffusion Choir, a flock of 400 kinetic origami elements

Four hundred motorized origami elements echo the movement of an invisible flock of birds. The piece, titled Diffusion Choir, is made from Tyvek fabric hexagons that furl and unfurl like umbrella canopies around 1800 t...

Why 10 Daily Tons of Ant Poop Keep This Rainforest Thriving

High up in the rainforest canopy of Panama's Barro Colorado Island, there are ants everywhere. Azteca ants—one kind of 30 different ant species that might be in a given tree—stand out because of their epic, 9 foot (2....

Building a Volcano-bot | How She Works

Volcanologist Carolyn Parcheta builds and tests Volcano bots, sturdy and compact robots that can explore inside volcanoes. Her team is developing these two-wheeled explorers to learn more about how magma moves and how...

The Brick Double-Domino Effect Explained

In 2016, bricklayers in Teralba, NSW Australia filmed their domino-style technique for capping a concrete brick wall. The video went viral thanks to the surprising second part of the chain reaction: After the bricks f...

Invisible Nature: Code of the Treehopper

Hiding in plain sight and deceptively still, treehoppers have evolved an ingenious way to communicate—using a complex series of vibrations. Now, scientists are listening in and starting to crack the treehopper code. A...

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...

What’s inside a tape measure?

It's useful for measuring, fun to extend out as far as possible, and when its rocker is unlocked, the long metal measuring blade snaps quickly back inside of its shell. But how? What's inside a tape measure? In th...

Cell division in a frog egg, a microscopic time lapse video

In a feat of DIY time lapse filmmaking at a microscopic scale, wildlife filmmaker and photographer Francis Chee captured the cell division of a Rana temporaria common frog egg. Watch it transform from a few cells to.....

How to make Leonardo da Vinci’s self-supporting bridge

With a series of wooden poles and beams, "Stick-Boy" shows his Dad how to build Leonardo da Vinci's self-supporting arch bridge, also known as the emergency bridge. No nails, screws, rope, glues, notches, or other fas...

A Fictive Flight Above Real Mars

Fly by the moon Phobos towards Mars, and then fly across the Red Planet's surface thanks to NASA’s High Resolution Imaging Science Experiment (HiRISE) imagery and three months of digital imaging work by Finnish filmma...

Hydnora africana, the strangest plant in the world?

With no leaves and no chlorophyll, Southern Africa's Hydnora africana is a underground-dwelling parasitic plant in that gets all of its sugars, minerals, and water by attaching to the roots of Euphorbia plants. It als...

« Prev