Scientists are now able to grow 'beating' heart tissue in a lab!
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Pumice is the only rock that floats on water.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
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A cesium atom in an atomic clock beats over nine billion times a second.
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