Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Nearly 50% of the world's scientists are assigned to military projects.
71
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Each day, up to 150 species of life become extinct.
-23
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13