On Thursday, April 20, 2023 at 8:38:01 PM UTC+1, Martin Brown wrote:
On 20/04/2023 14:54, Gerald Kelleher wrote:
An astronomical axiom is that the closer to the Sun, the faster a planet moves.
The astronomical "axiom" as you call it stems from the strict rule of conservation of angular momentum and conservation of energy.
The same rule that makes ice dancers and ballerinas spin faster as they bring their arms in (or stars into pulsars in the astronomical context).
[snip incoherent utter bollocks (TM)]
Invariants like the conservation of energy, momentum and angular
momentum are about the most powerful laws of physics that there are.
Superstitious nincompoops not withstanding.
--
Martin Brown
Thanks for the colourless jargon wrapped up in a spectacular rant; however, this is for solar system and galactic researchers rather than experimental ballerinas although no such researchers exist, at least at present. I wouldn't even bother with the
late 17th-century notion of the Earth falling around the Sun or its contrived jargon of angular momentum, it makes more sense to return to the antecedent approach that the Earth and other planets follow a path roughly consistent with the Sun's rotation
and, as far as I know, expressed by Kepler-
"The Sun and the Earth rotate on their own axes...The purpose of this motion is to confer motion on the planets located around them; on the six primary planets in the case of the Sun, and on the moon in the case of the Earth. On the other hand, the moon
does not rotate on the axis of its own body, as its spots prove " Kepler
This is extended to the motion of the entire solar system around the galactic centre and introduces variables such as planetary speeds and a default geometry that is currently described as elliptical.
https://w.astro.berkeley.edu/~kalas/wp-content/uploads/Paul_Kalas_Fomalhaut-1.jpg
Kepler wrote no laws- that was done by later mathematical theorists following the equivalent of Brexiteers of astronomy, in this case, Isaac Newton who conjured up a false equivalency and attributed it to Kepler-
"That the fixed stars being at rest, the periodic times of the five primary planets, and (whether of the sun about the Earth or) of the earth about the Sun, are in the sesquiplicate proportion of their mean distances from the Sun...This proportion, first
observed by Kepler, is now received by all astronomers; for the periodic times are the same, and the dimensions of the orbits are the same, whether the Sun revolves about the Earth, or the Earth about the Sun." Newton
The astronomical axiom within a Ptolemaic framework that the Earth orbits the Sun is drawn from a hypothesis from the Copernican era that the Sun passes the twelve constellations in an orbit and transferred to the Earth's motion through the same-
"Here take notice, that the Sun or the Earth passeth the 12. Signes, or makes an entire revolution in the Ecliptick in 365 days, 5 hours 49 min. or there about, and that those days, reckon'd from noon to noon, are of different lenghts; as is known to all
that are vers'd in Astronomy" Huygens
https://adcs.home.xs4all.nl/Huygens/06/kort-E.html
I do not care if mathematicians make a living by chanting voodoo to a public who are disinterested; however, I do care what was destroyed to make way for what is contrived rubbish at the expense of astronomy. Unfortunately and after 250+ years, there
may be nobody left with the perceptive abilities to look at solar system and galactic research with fresh eyes.
--- SoupGate-Win32 v1.05
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