0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Pure water (H2O) does not conduct electricity on its own.
46
Iron weighs more after it rusts.
68
One cubic foot of gold weighs more than 1,200 pounds!
78
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists aren't sure what color dinosaurs were.
312
The average temperature at 40,000 feet above sea level is -60 F.
56