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2. History of the single-lens reflex camera - Wikipedia

   en.wikipedia.org/wiki/History_of_the_single-lens...

   Rectaflex (Italy): first SLR camera equipped with a pentaprism for eye-level viewing. The first prototype of the Rectaflex was presented by Telemaco Corsi at the Milano Fair in April 1947. It was a wooden mock-up, with a mirror eye-level finder. This first prototype used a five-facet roof optic prism giving a left to right inverted image.

3. C. V. Raman - Wikipedia

   en.wikipedia.org/wiki/C._V._Raman

   He noted that Rayleigh's explanation is "questionable by a simple mode of observation" (using Nicol prism). [61] As he thought: Looking down into the water with a Nicol in front of the eye to cut off surface reflections, the track of the sun's rays could be seen entering the water and appearing by virtue of perspective to converge to a point at ...

4. Human eye - Wikipedia

   en.wikipedia.org/wiki/Human_eye

   The human eye is a sensory organ in the visual system that reacts to visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and keeping balance. Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device. It is approximately spherical in shape, with its outer ...

5. Harris' labor split screen: From the Politics Desk

   www.aol.com/news/harris-labor-split-screen...

   The Politics Desk. September 18, 2024 at 5:30 PM. Kamala Harris on Aug. 8 in Wayne, Mich. Welcome to the online version of From the Politics Desk, an evening newsletter that brings you the NBC ...

6. Orange (colour) - Wikipedia

   en.wikipedia.org/wiki/Orange_(colour)

   In optics, orange is the colour seen by the eye when looking at light with a wavelength between approximately 585–620 nm. It has a hue of 30° in HSV colour space. Isaac Newton's Opticks distinguished between pure orange light and mixtures of red and yellow light by noting that mixtures could be separated using a prism. [26]

7. Why a scandal consuming a Trump protégé could harm the ex ...

   www.aol.com/news/why-scandal-consuming-trump...

   The former president has had some success in making inroads among Black male voters as he seeks to undermine the Democratic coalition and his past support for Robinson will be seen through that prism.