Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
One barrel of petroleum holds 42 gallons.
20
The only letter not appearing on the Periodic Table is the letter "J".
180
Pumice is the only rock that floats on water.
14
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A single speck of dust is half way in size between a subatomic particle and the Earth.
15