Re: OT: orbits in space
- From: D from BC <myrealaddress@xxxxxxxxx>
- Date: Tue, 20 Mar 2007 08:52:11 GMT
On Tue, 20 Mar 2007 07:10:36 GMT, Jonathan Kirwan
<jkirwan@xxxxxxxxxxxxxx> wrote:
New day... a clue....
Compute 2nd (time) derivative of area swept by orbiting planet.
Separate parts and note what part must equal zero, if swept area rate
is constant. (Now pick any hypothetical acceleration vector without
assuming any knowledge about direction and translate it from x,y
coordinates to instantaneous radial and transverse coordinate frame.
Separate terms. Compare.)
Jon
Now I know another thing I don't know. :)
D from BC
.
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