Brass doorknobs automatically disinfect themselves in about 8 hours.
18
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
One third of the electricity produced on earth is used to power electric light bulbs!
75
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists aren't sure what color dinosaurs were.
312
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Aluminum used to be more valuable than gold!
84
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65