Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
One ragweed plant can release as many as one billion grains of pollen!
51
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The average temperature at 40,000 feet above sea level is -60 F.
56
A cesium atom in an atomic clock beats over nine billion times a second.
43
Billions of neutrinos pass unnoticed through your body every second.
6