|Nations Of The World||
An entertaining animated song to learn the names of countries in the world. Note - this is an old video so new nations are missing.
|How the Differential Gear works - 1930s video||
An excellent engineering video on how the differential gear works in an automobile, allowing each of the driving wheels to rotate at different speeds. This was an important innovation for cars to be able to smoothly turn corners.
|Martin Luther King "I have a dream"||
The full version of the historic speech by Martin Luther King, Jr.
|Doodling in Math Class: Infinity Elephants||
Various fascinating mathematical doodles. Step 1. Drawn any shape. Step 2. Draw the biggest circle you can within this shape. Step 3. Draw the biggest circle you can in the space left.
|Hungry whales steal birds' dinner - The Great Feast (BBC)||
In this video, herring are rounded up by birds into a 'bait ball' from which they can easily be plucked. But passing humpback whales are lying in wait for the right moment to steal and devour this easy snack.
|Autistic savant Stephen Wiltshire draws Rome from memory||
Stephen Wiltshire from London, also known as 'the living camera', accurately draws a large, detailed panorama of Rome after only one 45 minute helicopter ride above the city.
|Why is it Dark at Night?||
Why is space dark? If we lived in an infinite, unchanging universe, the entire sky would be as bright as the sun.
|Giant Ant Hill Excavated||
A giant ant colony is pumped full of concrete, then excavated to reveal the complexity of its inner structure. The structure covers 50 square meters, and goes 8 meters into the earth.
|What if the Earth were Hollow?||
What is the deepest we have ever dug into the earth? What if we went straight through?
|Tilted Twister - Robot Rubik's Cube Solver||
An ingenious lego robot solves a Rubik's Cube in just a few minutes.
|Steve Jobs and Bill Gates Together: Part 1 of 10||
In their rare joint appearance at All Things Digital 5,
|Fire ants create lifeboat in the Amazon (BBC)||
Embedding disabled: watch video on YouTube. When a flood threatens a fire ant colony in the Amazon jungle, they adapt by forming a lifeboat.