Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Most dust particles in your house are made from dead skin!
67
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
Pumice is the only rock that floats on water.
14
Nearly 50% of the world's scientists are assigned to military projects.
71
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199