In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Cold water weighs more than hot water.
93
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310