Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Cold water weighs more than hot water.
93
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
German chemists made a replica of a trophy the size of one molecule.
68
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
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44