Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Iron weighs more after it rusts.
16
The storage capacity of human brain exceeds 4 Terrabytes.
140
4.5 pounds of sunlight strike the Earth each day.
27
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57