Nearly 50% of the world's scientists are assigned to military projects.
71
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
For every gallon of sea water, you get more than a quarter pound of salt.
45
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 average home creates more pollution than does the average car.
33
The bark of an older redwood tree is fireproof.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199