When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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
Pure water (H2O) does not conduct electricity on its own.
46
The smell of freshly cut grass is actually a plant distress call.
31
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5