Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The average temperature at 40,000 feet above sea level is -60 F.
56
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Sound travels fifteen times faster through steel than through air.
134
Pumice is the only rock that floats on water.
14