In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The storage capacity of human brain exceeds 4 Terrabytes.
140
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
A cesium atom in an atomic clock beats over nine billion times a second.
43
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Pumice is the only rock that floats on water.
14