Out of all the senses, smell is most closely linked to memory.
146
The smell of freshly cut grass is actually a plant distress call.
31
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
Balsa wood is classified as a hard wood!
41
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
16
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18