Archivo:Newton's colour circle.png

Resumen

DescripciónNewton's colour circle.png	English: "In a mixture of primary colours, the quantity and quality of each being given, to know the colour of the compound." Throughout Opticks, Newton compared colours in the spectrum to a run of musical notes. To this purpose, he used a Dorian mode, similar to a white-note scale on the piano, starting at D. He divided his colour wheel in musical proportions round the circumference, in the arcs from DE to CD. Each segment was given a spectral colour, starting from red at DE, through orange, yellow, green, blew [sic], indigo, to violet in CD. (The colours are commonly known as ROY G BIV.) The middle of the colours—their 'centres of gravity'—are shown by p, q, r, s, t, u, and x. The centre of the circle, at O, was presumed to be white. Newton went on to describe how a non-spectral colour, such as z, could be described by its distance from O and the corresponding spectral colour, Y. A higher resolution image of this would be nice, if someone has access to one.
Fecha	1730
Fuente	Opticks, 4th ed., 1730. From Book I, Part II, Proposition VI, Problem 2. This figure is nearly unchanged from that in the 1704 first-edition printing.
Autor	Isaac Newton

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Aquí se muestra la página de descripción original. Los siguientes nombres de usuario se refieren a en.wikipedia.

2008-01-06 08:54 Dicklyon 398×394× (20319 bytes) Slightly better version
2006-08-12 00:01 Srleffler 0×0× (8092 bytes) Newton's colour circle, showing the colours correlated with musical notes and symbols for the known bodies within the solar system. A higher resolution image of this would be nice, if someone has access to one. (version lost by MediaWiki)

	Fecha y hora	Dimensiones	Usuario	Comentario
actual	03:03 29 oct 2019	400 × 385 (66 kB)	Sam Van Kooten	Replaced with a higher-quality version taken from the Project Gutenberg eBook of the 1730 4th-edition printing of Opticks.
	13:11 23 dic 2018	398 × 394 (32 kB)	Qpoi9762	I removed spots.
	16:17 5 mar 2010	398 × 394 (20 kB)	Maximkaaa	{{Information \|Description={{en\|1="In a mixture of primary colours, the quantity and quality of each being given, to know the colour of the compound." Throughout ''Opticks'', Newton compared colours in the spectrum to a run of musical no