For every gallon of sea water, you get more than a quarter pound of salt.
45
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Diamonds can be shattered with a hammer.
-104
Hot water can freeze faster than cold water.
181
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The average home creates more pollution than does the average car.
33
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9