The storage capacity of human brain exceeds 4 Terrabytes.
140
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One 75-watt bulb gives more light than three 25-watt bulbs.
57
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Pumice is the only rock that floats on water.
14
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists in Germany have developed a candy that doesn't cause cavities.
11
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199