In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Your brain is 80% water.
525
Nearly 50% of the world's scientists are assigned to military projects.
71
Cold water weighs more than hot water.
93
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
A ball of glass will bounce higher than a ball made of rubber.
73
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
4.5 pounds of sunlight strike the Earth each day.
27