During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Hot water can freeze faster than cold water.
181
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Out of all the senses, smell is most closely linked to memory.
146
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
The storage capacity of human brain exceeds 4 Terrabytes.
140