In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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
Pumice is the only rock that floats on water.
14
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57