Sound travels about 4 times faster in water than in air.
408
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Nylon is made from coal and petroleum.
42
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39