When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Balsa wood is classified as a hard wood!
41
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Research indicates that plants grow healthier when they are stroked.
173
Scientists aren't sure what color dinosaurs were.
312
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61