Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The smell of freshly cut grass is actually a plant distress call.
31
Most dust particles in your house are made from dead skin!
67
For every gallon of sea water, you get more than a quarter pound of salt.
45
Your brain is 80% water.
525
The sun is 330,330 times larger than the earth.
75
Pure water (H2O) does not conduct electricity on its own.
46