Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Cold water weighs more than hot water.
93
Diamonds can be shattered with a hammer.
-104
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound at the right vibration can bore holes through a solid object.
134