When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
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
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
For every gallon of sea water, you get more than a quarter pound of salt.
45
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
The average temperature at 40,000 feet above sea level is -60 F.
56