Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
No matter how cold it gets, gasoline will not freeze.
107
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Most dust particles in your house come from dead skin.
48
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Billions of neutrinos pass unnoticed through your body every second.
6
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15