A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
4.5 pounds of sunlight strike the Earth each day.
27
Iron weighs more after it rusts.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
If the chemical sodium is dropped into water it will immediately and violently explode.
67
A cubic yard of air weighs about 2 pounds at sea level.
31
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65