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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. Prism (Katy Perry album) - Wikipedia

   en.wikipedia.org/wiki/Prism_(Katy_Perry_album)

   Prism is the fourth studio album by American singer Katy Perry. It was released by Capitol Records on October 18, 2013. While the album was initially planned to be "darker" than her previous material, Prism ultimately became a prominently dance-inspired record. Perry worked with several past collaborators, while enlisting new producers and ...

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. List of films in the public domain in the United States

   en.wikipedia.org/wiki/List_of_films_in_the...

   Note: This list is not comprehensive; the vast majority of public domain films are not listed here.This list includes a selection of notable films where a reliable secondary source is available that discusses public domain status.

7. Isaac Newton - Wikipedia

   en.wikipedia.org/wiki/Isaac_Newton

   During this period he investigated the refraction of light, demonstrating that the multicoloured image produced by a prism, which he named a spectrum, could be recomposed into white light by a lens and a second prism. [63] Modern scholarship has revealed that Newton's analysis and resynthesis of white light owes a debt to corpuscular alchemy. [64]