Nylon is made from coal and petroleum.
42
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
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Diamonds can be shattered with a hammer.
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