A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Pumice is the only rock that floats on water.
14
Nearly 50% of the world's scientists are assigned to military projects.
71
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Balsa wood is classified as a hard wood!
41
The left ear is more responsive to words of love and emotion whispered into it than the right.
40