Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
Sound travels about 4 times faster in water than in air.
408
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42