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A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light. Unlike convex mirrors, concave mirrors show different image types depending on the distance between the object and the mirror.
This page was last edited on 17 May 2009, at 18:26 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
Along with focal points, he also noted that the image in a concave mirror is inverted. [71] Shen, who never asserted that he was the first to experiment with camera obscura, hints in his writing that camera obscura was dealt with in the Miscellaneous Morsels from Youyang written by Duan Chengshi (d. 863) during the Tang dynasty (618–907), in ...
A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...
What I want to be reviewed is: 1- is the resolution okay 2- is it considered wikipedia's bets work or pleasuring to the eye .. and therefore, should it be nominated as a featured picture or not. Author: Myself User:Eshcorp. Pages they appear in: Curved mirror, but more could be added. Nominate and support. - Eshcorp 07:43, 19 August 2006 (UTC)
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The scientists calculated that a huge reflector, made of metallic sodium and with an area of 9 square kilometres (900 ha; 3.5 sq mi), could produce enough focused heat to make an ocean boil or burn a city. [1] After being questioned by American officers, the Germans claimed that the sun gun could be completed within 50 or 100 years. [1] [2]
The Latin translation of Alhazen's (Ibn al-Haytham) main work, Book of Optics (Kitab al-Manazir), [6] exerted a great influence on Western science: for example, on the work of Roger Bacon, who cites him by name. [7] His research in catoptrics (the study of optical systems using mirrors) centred on spherical and parabolic mirrors and spherical ...