The average home creates more pollution than does the average car.
33
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Out of all the senses, smell is most closely linked to memory.
146
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