Crossed Prisms with Spectra
Bildnummer 11696368
| Prisms demonstrating refraction of white light into the visible spectrum. Beams of white light strike the prisms and are dispersed onto the opposite faces. At these faces,some of the light is refracted again,exiting the prism and forming the spectrum. The spectrum is a result of the different amounts of refraction of the different wavelengths of light present. In Isaac Newton's time,it was believed that white light was colourless,and that the prism itself produced the colour. Newton's experiments convinced him that all the colours already existed in the light in a heterogeneous fashion,and that "corpuscles" (particles) of light were fanned out because particles with different colours travelled with different speeds through the prism | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Parker, David |
| Bildgröße: | 5112 px × 6164 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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