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Equation of Time
On 26 Apr, 13:18, (Pd) wrote:
oriel36 wrote: a bunch of gibberish. Who is this clueless dork? A troll? A scientologist? A deranged astrologer? A nitwit necromancer? -- Pd For a person who believes and supports that there is a hemispherical variable inclination to the Sun is a factor in the Equation of Time via the analemma hoax,I am delighted that you find what I say to be gibberish. The Equation of Time is a global correction,it does not matter whether a person is in the Northern or Southern hemispheres,the natural length of the noon cycles vary regardless of hemispherical variations in daylight/darkness. With 24 hours/360 degrees taken as an assumption for constant axial rotation and using natural noon as a benchmark,the difference between idealised rotation in 24 hours and the natural rotation allied with the change in orbital oreintation affirms Kepler's orbital gerometry and behavior in terms of variable speed and distance travelled.The Equation of Time therefore represents the rate of change of orbital orientation as a location turns through 360 degrees to the central Sun and orbitally takes a full orbit to do it. ..The cheesy websites offered in this thread and based on the analemma hardly compare to the treatise of Huygens and how to determine natural noon by using two plummets or by centralising natural noon using the Sun's position against the horizon .There is a contemporary twist to the Equation of Tim beside the fact that it represents an incredible human achievement which make the 24 hour day and the subsequently calendar system possible and that is its affirmation of Kepler's orbital motion and geometry. I leave you with your sub-geocentric view of the Earth's motions,I suppose I would be sour too if I was forced to support that cartoon version of axial and orbital motion - http://en.wikipedia.org/wiki/Image:T...3%A9reo.en.png |
#12
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Equation of Time
On 26 Apr, 15:45, (jim) wrote:
Pd wrote: oriel36 wrote: a bunch of gibberish. Who is this clueless dork? A troll? A scientologist? A deranged astrologer? A nitwit necromancer? He's Gerald - a pompous, self important, deluded half-wit who believes he's the only 'real' astronomer in this group. Sort of the Chris Holland of uk.sci.astronomy and sci.astro.amateur but without the blatent homophobia. Jim -- "Well, well. We've come a long way from the Prime Minister's *exploding cake." - Adam West, Batman. Find me athttp://www.UrsaMinorBeta.co.uk The most shocking part of the Piltdown hoax was not the hoax itself but rather when ,the hoaxer was signalling that it was a hoax ,the hints were was refused .The 'fact' became so established and so much a part of the human evolutionary agenda that even in 1948 they could write - "The Piltdown enigma is still far from a final solution. At this present moment I find Dr. Franz Weidenreich, who has won a just mead of praise for his restoration of the ancient men of Java and of China, rejecting the Piltdown fossils as authentic documents, so much are they out of keeping with his theory of human evolution. On the other hand I am firmly convinced that no theory of human evolution can be regarded as satisfactory unless the revelations of Piltdown are taken into account. " http://www.clarku.edu/~piltdown/map_...t_english.html No offense to the early 20th century wild goosechase in biological evolution ,it is nothing compared to the catastrophe created by Flamsteed in either taking an inapproipriate shortcut of intentionally wrecking heliocentric principles in drawing a false conclusion for axial rotation by using a zodiacal framework and all wrapped up in a graphic - http://en.wikipedia.org/wiki/Image:T...3%A9reo.en.png It is though you could shake a person and ask - what is the matter with you?,can you not spot a dumb hoax whern you see it !.This one is not going away and all the mean spiritedness cannot substitute for the fact that when Flamsteed jumped the tracks with the reasoning which leads to the value of 23 hours 56 minutes 04 seconds he set astronomy on course for intellectual oblivion. |
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Equation of Time
In article , OG
Fri, 25 Apr 2008 20:15:39 writes "Les Desser" wrote in message ... I am preparing a presentation on the Equation of Time and have been trying to find a clear description, preferable with diagrams, of the adjustment due to obliquity. The explanation at the National Maritime Museum http://www.nmm.ac.uk/server/show/conWebDoc.351 only makes sense if you already know the answer The best I could find was the page at http://www.wallingfordclock.talktalk.net/Sidereal%20Time.htm but I still find it inadequate. The example of the bus going down the incline is good to show the slowdown but I cannot find anything appropriate to explain the speeding up. Has anyone seen and better presented explanations? Does this have what you're looking for http://www.analemma.com/ ? Thanks - that looks very interesting. -- Les Desser (The Reply-to address IS valid) |
#14
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Equation of Time
In article , Mike Dworetsky
Sat, 26 Apr 2008 12:04:16 writes There is a diagram, possibly what you are looking for, that separates the obliquity and eccentricity effects, at the Royal Observatory web site: http://www.nmm.ac.uk/server/show/conWebDoc.351 I have seen that. Unfortunately it doesn't really "say" anything. Anyone who does not already know what is going on is unlikely to see the light by reading the very brief descriptions. -- Les Desser (The Reply-to address IS valid) |
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Equation of Time
In article , Mike Dworetsky
Sat, 26 Apr 2008 12:09:48 writes Try the diagram on this one. http://www.astronomynotes.com/nakedeye/s9.htm Thanks - will do -- Les Desser (The Reply-to address IS valid) |
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Equation of Time
On Apr 28, 7:03*pm, Les Desser wrote:
In article , OG Fri, 25 Apr 2008 20:15:39 writes "Les Desser" wrote in message ... I am preparing a presentation on the Equation of Time and have been trying to find a clear description, preferable with diagrams, of the adjustment due to obliquity. The explanation at the National Maritime Museum http://www.nmm.ac.uk/server/show/conWebDoc.351 only makes sense if you already know the answer The best I could find was the page at http://www.wallingfordclock.talktalk.net/Sidereal%20Time.htm but I still find it inadequate. The example of the bus going down the incline is good to show the slowdown but I cannot find anything appropriate to explain the speeding up. Has anyone seen and better presented explanations? Does this have what you're looking for http://www.analemma.com/ ? Thanks - that looks very interesting. -- Les Desser (The Reply-to address IS valid)- Hide quoted text - - Show quoted text - I have to laugh,many look down at the Americans with the minority of creationists who live there whereas on this side of the ocean there are those who are full blown astrologers - http://www.math.nus.edu.sg/aslaksen/...lemmaCurve.gif The Equation of Time is a global correction applied to the total length of the natural noon cycle,to believe that there is some sort of hemispherical variable axial inclination involved,hence the analemma hoax, is basically to be on intellectual par with a flat Earther.The analemma must be some sort of eccentric English joke ,in which case,it is not funny anymore but I would'nt spend too long trying to convince the English on it insofar as the treatise of Huygens on the Equation of Time and what it does sets the standard against which any alternative view can be compared. For goodness sake,what is it that makes people believe in an astrological framework with a value for axial rotation through 360 degrees in 23 hours 56 minutes 04 seconds !!!,Does anybody here understand that it is even below the level of creationist thinking or rather,do they noit understand the basic transfer of the 24 hour day to the axial cycle as a constant but not as an observance as the solar/sidereal ficvtion has it - http://en.wikipedia.org/wiki/Image:T...3%A9reo.en.png This is not the first time you lot disgraced your nation,the King had to intervene in the matter of Harrison's rightful resolution for determination of longitudes using his clock (which of course involves the Equation of Time principles) but now the situation is far,far worse.I do not mind that you fraks betray your natiion,if you wish to believe in the solar/sidereal fiction above then that is either madness or eccentricity however that type of reasoning places an incredible obstacle to productive work due to its astrological foundations. |
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