Re: Riemann geometry, chicken or the egg?

Robert Israel schrieb:

....................................... Some Greeks did have a
heliocentric system, but the idea that the orbits were ellipses
seems not to have occurred to anybody before Kepler.


Wiki -german about Alexander Thom:
"Neben dem Maßsystem trug Thom auch zu einer tieferen Betrachtung der
Geometrie der megalithischen Steinkreise bei. Er klassifizierte sie in
sechs Typen: echte Kreise, Ellipsen, zwei Arten von eiförmigen Kreisen
und zwei Arten von abgeflachten Kreisen."
The megalithic astronomers thought about orbits, of course there is no
hint in this to a heliocentric system.
With friendly greetings
Hero

.

Relevant Pages

  • Re: Riemann geometry, chicken or the egg?
    ... but the idea that the orbits were ellipses ... Wiki -german about Alexander Thom: ... The megalithic astronomers thought about orbits, ... hint in this to a heliocentric system. ...
    (sci.math)
  • Re: Kepler digital
    ... The orbits of the planets are ellipses, ... Prev by Date: ...
    (sci.physics)
Quantcast