4.5 pounds of sunlight strike the Earth each day.
27
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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 the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The bark of an older redwood tree is fireproof.
65
Scientists aren't sure what color dinosaurs were.
312
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5