The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
One 75-watt bulb gives more light than three 25-watt bulbs.
57
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
4.5 pounds of sunlight strike the Earth each day.
27
No matter how cold it gets, gasoline will not freeze.
107
A ball of glass will bounce higher than a ball made of rubber.
73
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108