Iron weighs more after it rusts.
68
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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20