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Precession

/prɪˈsɛʃən/noun
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Precession is the slow, wobbling motion of the axis of a spinning object, such as a top or a planet, caused by external torques. In modern contexts, it's crucial in fields like astronomy and physics for understanding long-term celestial movements and engineering gyroscopes, where even slight deviations can lead to significant navigational errors over time.

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The precession of Earth's axis, with a full cycle every 26,000 years, means that the North Star we see today, Polaris, wasn't always in that position—in about 12,000 years, Vega will become the new North Star, dramatically altering how ancient civilizations like the Egyptians aligned their pyramids.

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