Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Sound at the right vibration can bore holes through a solid object.
134
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Indoor pollution is 10 times more toxic than outdoor pollution.
62
In zero gravity, a candle's flame is round and blue.
16
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3