Sound travels about 4 times faster in water than in air.
408
The force of a suction cup is calculated using F=AP.
15
One ragweed plant can release as many as one billion grains of pollen!
51
German chemists made a replica of a trophy the size of one molecule.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65