Nearly 50% of the world's scientists are assigned to military projects.
71
In zero gravity, a candle's flame is round and blue.
16
For every gallon of sea water, you get more than a quarter pound of salt.
45
Aluminum used to be more valuable than gold!
84
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Pumice is the only rock that floats on water.
14