In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Aluminum used to be more valuable than gold!
84
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The sun is 330,330 times larger than the earth.
75
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Sound travels fifteen times faster through steel than through air.
134