Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Each day, up to 150 species of life become extinct.
-23
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