Scientists aren't sure what color dinosaurs were.
312
Sound at the right vibration can bore holes through a solid object.
134
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
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
16
One cubic foot of gold weighs more than 1,200 pounds!
78
Most dust particles in your house come from dead skin.
48