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
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Hot water can freeze faster than cold water.
181
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Sound travels fifteen times faster through steel than through air.
134