Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175
In zero gravity, a candle's flame is round and blue.
16
Research indicates that plants grow healthier when they are stroked.
173
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Diamonds can be shattered with a hammer.
-104
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A cesium atom in an atomic clock beats over nine billion times a second.
43