The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The average home creates more pollution than does the average car.
33
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
For every gallon of sea water, you get more than a quarter pound of salt.
45