|Aurora Northern Lights as seen from Space - Timelapse||
A video of Northern Lights as seen from earth's orbit, captured by Astronaut Don Pettit.
|Sam Whittingham defends 82 mph world record for fastest human powered bicycle||
Sam Whittingham bikes faster than most cars on a highway to defend his world record for the fastest human powered bike. His world record is 82.3 mph or 132.5 km/h. The easiest gear of his custom-built bicycle is harder than any of the gears on a racing bike.
Sergey Brin and Steve Horowitz discuss the availability of the SDK and demo applications on the Android platform.
|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.
|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.
|Big Dog robot - update||
A new dog-like robot from DARPA (Defense Advanced Research Projects Agency) with more advanced control, stability and maneuverability.
|Python vs Cobra||
A Cobra challenges a Python and wins. It then devours the Python.
|Multi-Touch Interaction Experiments||
Jefferson Han demonstrates the features of a multi-touch display which can make interaction much more efficient, intuitive and fun.
|Nixon vs Kennedy TV Debate||
President Kennedy's victory over favorite Nixon in the 1960 presidential election is largely attributed to his better performance in the first televised U.S. presidential debates in U.S. history.
|The Science of Overpopulation||
The world's population is growing at around 1.1% per year. By 2050 we should have around 9.3 billion people.
|Scotch tape makes opaque glass transparent||
The glass is opaque because it is etched, and light scatters on the rough surface. The glue in the scotch tape fills in any regularities and allows light to pass through with little scattering.
|Size of the Stars - 3D and HD||
Another video showing the size of the stars and how miniscule planet Earth is in comparison. This one may be the very best attempt yet.