At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Out of all the senses, smell is most closely linked to memory.
146
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists aren't sure what color dinosaurs were.
312
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Most dust particles in your house come from dead skin.
48
Sound travels about 4 times faster in water than in air.
408