Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
No matter how cold it gets, gasoline will not freeze.
107
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
If the chemical sodium is dropped into water it will immediately and violently explode.
67