Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
A cesium atom in an atomic clock beats over nine billion times a second.
43
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
68
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17