A cubic yard of air weighs about 2 pounds at sea level.
31
The sun is 330,330 times larger than the earth.
75
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Nylon is made from coal and petroleum.
42