One barrel of petroleum holds 42 gallons.
20
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Nylon is made from coal and petroleum.
42
Most dust particles in your house come from dead skin.
48
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
16