The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Scientists aren't sure what color dinosaurs were.
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