Scientists aren't sure what color dinosaurs were.
312
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Iron weighs more after it rusts.
68
Your brain is 80% water.
525
Aluminum used to be more valuable than gold!
84
One cubic foot of gold weighs more than 1,200 pounds!
78