Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
68
Sound at the right vibration can bore holes through a solid object.
134
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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