A day on Earth is not exactly 24 hours, which is why leap seconds exist.
Fact #2687
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The Earth's atmosphere scatters blue light, making the sky appear blue.
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The Asch conformity experiment demonstrated the influence of group pressure.
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Volcanic eruptions can release ash clouds that disrupt air travel.
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Many coins are made of precious metals such as gold and silver which makes their value higher than face value.
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The polio vaccine drastically reduced cases worldwide.
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The Earth's magnetic field originates in its molten outer core.
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Time moves slower in stronger gravitational fields.
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The identification of vitamins advanced nutritional science.
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