File:EB1911 Vision - Form of Double Slit for Partial Superposition of Two Spectra.jpg
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Summary
| Description |
English: Various methods have been adopted for studying the effect of mixing colours. This may be done in a simple way by having a slit in the form of the letter V (see figure), of which the two portions ab and bc form a right angle; behind this slit is placed a vertical prism, and two spectra are obtained, as seen in EB1911 Vision - Diagram of Double Spectrum.jpg, where bfea is the spectrum of the slit ab, and cefd that of the slit cd; the coloured spectra are contained in the triangle gef, and by arrangement, the effects of mixture of any two simple colours may be observed. |
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| Date | published 1911 | |||
| Source | “Vision,” Encyclopædia Britannica (11th ed.), v. 28, 1911, p. 137, fig. 17. | |||
| Author | Unknown artist | |||
| Permission (Reusing this file) |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:06, 5 September 2021 | | 598 × 272 (38 KB) | Bob Burkhardt | {{Information |description = {{en|1=Various methods have been adopted for studying the effect of mixing colours. This may be done in a simple way by having a slit in the form of the letter V (see figure), of which the two portions ''ab'' and ''bc'' form a right angle; behind this slit is placed a vertical prism, and two spectra are obtained, as seen in EB1911 Vision - Diagram of Double Spectrum.jpg, where ''bfea'' is the spectrum of the... |
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