Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
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
Each day, up to 150 species of life become extinct.
-23
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
According to studies, men change their minds two to three times more often than women.
72
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Scientists aren't sure what color dinosaurs were.
312