Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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One ragweed plant can release as many as one billion grains of pollen!
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One 75-watt bulb gives more light than three 25-watt bulbs.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Most dust particles in your house are made from dead skin!
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