The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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A cow produces around 200,000 glasses of milk in her lifetime.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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