Scientists aren't sure what color dinosaurs were.
312
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
The smell of freshly cut grass is actually a plant distress call.
31
For every gallon of sea water, you get more than a quarter pound of salt.
45
Sound travels about 4 times faster in water than in air.
408
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7