The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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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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A single speck of dust is half way in size between a subatomic particle and the Earth.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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