When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels fifteen times faster through steel than through air.
134