The smell of freshly cut grass is actually a plant distress call.
31
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Your brain is 80% water.
525
Sound travels fifteen times faster through steel than through air.
134
Iron weighs more after it rusts.
16