Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If the chemical sodium is dropped into water it will immediately and violently explode.
67
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Hot water can freeze faster than cold water.
181
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
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
No matter how cold it gets, gasoline will not freeze.
107