The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
4.5 pounds of sunlight strike the Earth each day.
27
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The average temperature at 40,000 feet above sea level is -60 F.
56
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists in Germany have developed a candy that doesn't cause cavities.
11