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- Q1456962 subject Q7131172.
- Q1456962 abstract "Opalescence is a type of dichroism seen in highly dispersed systems with little opacity. The material appears yellowish-red in transmitted light and blue in the scattered light perpendicular to the transmitted light. The phenomenon is named after the appearance of opals and is an example of the Tyndall effect.There are different degrees of opalescent behaviour. One can still see through a slightly opalescent phase. The larger the particles are, the stronger the scattering arising from them and the cloudier the particular phase will look. At a certain concentration the scattering is so strong that all light passing through is scattered, so that it is no longer transparent.Examples are the blue sky in the daytime and the yellowish-red sky at sunset. Another example can be made by adding a few droplets of milk to a glass of water. The liquid appears bluish. However, if one looks through the glass at a light source, it becomes yellowish-red. Opalescence is an effect exploited in lustreware pottery.".
- Q1456962 thumbnail Why_is_the_sky_blue.jpg?width=300.
- Q1456962 wikiPageWikiLink Q1195643.
- Q1456962 wikiPageWikiLink Q171058.
- Q1456962 wikiPageWikiLink Q181780.
- Q1456962 wikiPageWikiLink Q244040.
- Q1456962 wikiPageWikiLink Q249023.
- Q1456962 wikiPageWikiLink Q378894.
- Q1456962 wikiPageWikiLink Q4828172.
- Q1456962 wikiPageWikiLink Q618614.
- Q1456962 wikiPageWikiLink Q691914.
- Q1456962 wikiPageWikiLink Q7131172.
- Q1456962 wikiPageWikiLink Q957208.
- Q1456962 comment "Opalescence is a type of dichroism seen in highly dispersed systems with little opacity. The material appears yellowish-red in transmitted light and blue in the scattered light perpendicular to the transmitted light. The phenomenon is named after the appearance of opals and is an example of the Tyndall effect.There are different degrees of opalescent behaviour. One can still see through a slightly opalescent phase.".
- Q1456962 label "Opalescence".
- Q1456962 depiction Why_is_the_sky_blue.jpg.