In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Research indicates that plants grow healthier when they are stroked.
173
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
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
Brass doorknobs automatically disinfect themselves in about 8 hours.
18