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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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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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.
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The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
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