Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Sound travels about 4 times faster in water than in air.
408
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57