The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Nylon is made from coal and petroleum.
42
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
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
In zero gravity, a candle's flame is round and blue.
16