Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: JRandomFreeper
Terra really does orbit Sol in an ellipse. As do the other planets and stuff in this solar system.

Well, if you want to get picky ... no. Elliptical orbits solve the Newtonian two body problem, and hence represent a conceptual advance over eccentric circular orbits, but Kepler's third law may be disovered to be in error by checking against Norton's Sky Atlas with a calculator. This is not to mention perturbations. So even within Newtonian dynamics the ellipses are an idealization.

23 posted on 10/28/2012 9:45:42 PM PDT by dr_lew
[ Post Reply | Private Reply | To 17 | View Replies ]


To: dr_lew
Dude, I'm a cook. Describing Terra's orbit as an ellipse is within order of magnitude, and close enough to hit Mars if you keep your units straight. ;)

/johnny

28 posted on 10/28/2012 10:18:12 PM PDT by JRandomFreeper (Gone Galt)
[ Post Reply | Private Reply | To 23 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson