The force of a suction cup is calculated using F=AP.
15
Cold water weighs more than hot water.
93
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
One third of the electricity produced on earth is used to power electric light bulbs!
75
The average temperature at 40,000 feet above sea level is -60 F.
56