sci.physics.research

Thus spake Surfer
>On Thu, 7 Feb 2008 12:10:20 +0000 (UTC), Oh No
> wrote:
>
>>Hello everybody,
>>
>>I have given a conceptual and mathematical account of general relativity
>>on my website. This is an introductory level course, from first
>>principles, including sections on the required mathematics for those who
>>either have not done it, or need revision.
>>
>Thank you. I am reading through it.
>
>>
>>Any comments on anything inadequate or not clear will be gratefully
>>received.
>>
>In
>/rqg/images/equivalenceprinciple/Equivale
>
>
>the orbits of the objects in the satellite don't look quite right.
>
>I would expect each orbit to be an ellipse.
>
>If the orbits were mirror images of each other (so as to ensure the
>same orbital period), then they would intersect at only two points
>rather than at four points.
>
Thanks for your interest. I used ellipses with perpendicular major axes,
not mirror images, but I failed to get the focal points to coincide
adequately. I want the diagrams to be as simple and self explanatory as
possible. Setting up orbits of equal period would be tricky in practice,
so I have replaced the diagram, showing two objects released at rest,
with positions slightly offset from the satellite centre of mass.

Regards

--
Charles Francis
moderator .
charles (dot) e (dot) h (dot) francis (at) (remove spaces and
braces)

/rqg/MainIndex