For every gallon of sea water, you get more than a quarter pound of salt.
45
According to studies, men change their minds two to three times more often than women.
72
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The smell of freshly cut grass is actually a plant distress call.
31
The bark of an older redwood tree is fireproof.
65
One cubic foot of gold weighs more than 1,200 pounds!
78
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5