Re: Newton's theory of "Universal Gravitation"


<srp@xxxxxxxxxxxx> wrote in message
news:07ae4077-25eb-4524-8e17-7a27d4e38bfe@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On 21 nov, 10:24, kingoleo <tahir.le...@xxxxxxxxx> wrote:
Newton's theory of "Universal Gravitation"

The Moon orbits around the Earth. Since its size does not appear to
change, its distance stays about the same, and hence its orbit must be
close to a circle.

It can be approximated to a circle for simple calculation needs, but
it is definitely not a circle. No stable orbit can be.

Proof orbits of eccentricity zero are not stable?
Oh wait... you have an opinion...





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