Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Iron weighs more after it rusts.
16
Scientists aren't sure what color dinosaurs were.
312
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
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Balsa wood is classified as a hard wood!
41
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44