In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house are made from dead skin!
67
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Each day, up to 150 species of life become extinct.
-23
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51