If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Diamonds can be shattered with a hammer.
-104
In zero gravity, a candle's flame is round and blue.
16
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
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
The bark of an older redwood tree is fireproof.
65