When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Iron weighs more after it rusts.
68
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20