Why Is the Earth Slowing Down?

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SUMMARY

The Earth is experiencing a gradual slowdown in its rotation primarily due to tidal friction caused by the Moon, resulting in longer days. This phenomenon leads to a decrease in the number of days per year. Additionally, the Earth's distance from the Sun is increasing, which affects the length of the year, although this change occurs at a much slower rate. Both factors contribute to the overall perception of the Earth "slowing down."

PREREQUISITES
  • Understanding of tidal friction and its effects on planetary rotation
  • Basic knowledge of Earth's rotational dynamics
  • Familiarity with astronomical concepts such as orbits and axial wobble
  • Awareness of the relationship between the Moon and Earth
NEXT STEPS
  • Research the effects of tidal friction on Earth's rotation
  • Explore the concept of axial precession and its implications
  • Study the long-term changes in Earth's orbit around the Sun
  • Investigate the historical data on Earth's rotational speed
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Astronomers, geophysicists, educators, and anyone interested in understanding Earth's rotational dynamics and its implications on timekeeping and calendars.

Cyrus80772
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How is the Earth "slowing down"

I herd the Earth is slowing down...
Dose that meen the speed of its rotation is slowing? Is its orbit around the sun slowing? Or is it the speed of its wobble on the axis is slowing? or is it all 3?
 
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Mostly the rotation rate is slowing down due to tidal friction with the moon - the day is getting longer and there will be fewer days in the year
The distance from the sun and so the length of the year is also increasing, but more slowly
 

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