In zero gravity, a candle's flame is round and blue.
16
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Balsa wood is classified as a hard wood!
41
Most dust particles in your house come from dead skin.
48
Scientists in Germany have developed a candy that doesn't cause cavities.
11
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310