When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The average temperature at 40,000 feet above sea level is -60 F.
56
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
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The force of a suction cup is calculated using F=AP.
15