A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175
In zero gravity, a candle's flame is round and blue.
16