Sound at the right vibration can bore holes through a solid object.
134
Sound travels fifteen times faster through steel than through air.
134
The bark of an older redwood tree is fireproof.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57