Sound travels fifteen times faster through steel than through air.
134
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
The average home creates more pollution than does the average car.
33
One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
In zero gravity, a candle's flame is round and blue.
16