At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Sound at the right vibration can bore holes through a solid object.
134
One cubic foot of gold weighs more than 1,200 pounds!
78
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Pure water (H2O) does not conduct electricity on its own.
46
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Diamonds can be shattered with a hammer.
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