A cubic yard of air weighs about 2 pounds at sea level.
31
Aluminum used to be more valuable than gold!
84
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Sound travels fifteen times faster through steel than through air.
134
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101