I am no scientist and thoughts are my own, please be gentle!![]()
For 4.5 Billion years our planet has been spinning, that is perpetual motion in my book.
What i cannot understand is, yes it's in frictionless space but it has gravitational forces pulling at it in the shape of our moon, causing Trillions of tons of water to be displaced every second, its also pulling at Earth's molten core. I thought this would be a huge damping effect.
To do this for 4.5 billion years with only a very small loss seems incredible.
The whole crux of my thoughts were
1. The Earth has been spinning for an awfully long time, thats a long time for anything to spin!
2. What factors are retarding the earths spin and can these be quantified?
3. Do the quantified factors add up to expected losses of spin over the Earths history.
4. Is there another force present assisting spin?