Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Hot water can freeze faster than cold water.
181
4.5 pounds of sunlight strike the Earth each day.
27
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Balsa wood is classified as a hard wood!
41
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16