Sound travels about 4 times faster in water than in air.
408
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Nylon is made from coal and petroleum.
42
Billions of neutrinos pass unnoticed through your body every second.
6
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The average home creates more pollution than does the average car.
33