Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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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 cubic foot of gold weighs more than 1,200 pounds!
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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