Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
In zero gravity, a candle's flame is round and blue.
16
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Sound at the right vibration can bore holes through a solid object.
134
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Scientists aren't sure what color dinosaurs were.
312
A 'jiffy' is an actual unit of time for 1/100th of a second!
66