In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Out of all the senses, smell is most closely linked to memory.
146
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Sound travels about 4 times faster in water than in air.
408
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44