When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Cold water weighs more than hot water.
93
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
For every gallon of sea water, you get more than a quarter pound of salt.
45
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
A ball of glass will bounce higher than a ball made of rubber.
73
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12