In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
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
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Cold water weighs more than hot water.
93
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
One barrel of petroleum holds 42 gallons.
20