Nylon is made from coal and petroleum.
42
Your brain is 80% water.
525
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Liquid TIDE laundry detergent glows under a blacklight.
96
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One ragweed plant can release as many as one billion grains of pollen!
51