Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A ball of glass will bounce higher than a ball made of rubber.
73
Each day, up to 150 species of life become extinct.
-23
A cesium atom in an atomic clock beats over nine billion times a second.
43
The storage capacity of human brain exceeds 4 Terrabytes.
140
The average home creates more pollution than does the average car.
33
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7