posted on Nov, 15 2011 @ 11:40 AM
I thought it was known that not only the earth's rotational speed, and the moon's orbit around earth, and also the eccentricity of the elliptical
orbit has never been a constant since the earth and moon orbited each other around the sun.
In fact the orbital speed of the earth has been slowing the last 4.5 billion years and the moon's orbit has as well as well as it's distance from
the earth. This is called tidal friction due to a transfer of Earth's rotational momentum to the Moon's orbital momentum, as well as galactic space
dust, solar wind, space weather, geomagnetic storms, etc., like any flywheel, it will slow down.
The real interesting thing that we may not exist long enough for it to occur is that theoretically the earth's rotation will halt once equilibrium of
the moon's orbit come in sync. That means in several billions of years an earth day will equal an earth month.
It is expected that in 15 billion years, the orbit will stabilize at 1.6 times its present size, and the Earth day will be 55 days long equal to the
time it will take the Moon to orbit the Earth. Of course, in less than 7 billion years, the Sun will have evolved into a red giant star and engulfed
the Earth-Moon system, thereby incineration will have occurred.