German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Sound travels about 4 times faster in water than in air.
408
One third of the electricity produced on earth is used to power electric light bulbs!
75
Sound travels fifteen times faster through steel than through air.
134
Cold water weighs more than hot water.
93