Ficheiro:Newton's colour circle.png

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Newton's_colour_circle.png ‎(400 × 385 píxeles; tamaño do ficheiro: 66 kB; tipo MIME: image/png)

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Resumo

DescriciónNewton'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.
Data	1730
Orixe	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.
Autoría	Isaac Newton

Licenza

	Este material está no dominio público nos demais países onde os dereitos de autor se estenden por 100 anos (ou menos) trala morte do autor. Debe incluír tamén unha etiqueta de dominio público dos Estados Unidos para indicar por que esta obra se atopa no dominio público nos Estados Unidos.
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PDMCreative Commons Public Domain Mark 1.0falsefalse

Rexistro de cargas orixinal

A páxina orixinal de descrición está aquí. Tódolos seguintes nomes de usuario refírense 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)

Historial do ficheiro

Prema nunha data/hora para ver o ficheiro tal e como estaba nese momento.

	Data/Hora	Dimensións	Usuario	Comentario
actual	29 de outubro de 2019 ás 03:03	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.
	23 de decembro de 2018 ás 13:11	398 × 394 (32 kB)	Qpoi9762	I removed spots.
	5 de marzo de 2010 ás 16:17	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