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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Aluminum used to be more valuable than gold!
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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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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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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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4.5 pounds of sunlight strike the Earth each day.
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