The Earth's atmosphere weighs about 5.5 quadrillion tons.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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Pumice is the only rock that floats on water.
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For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
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