The force of a suction cup is calculated using F=AP.
15
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15