fresnel pattern
51Crisp Point Light — Undated USCG photo Location Lake Superior shoreline, Michigan Coordinates …
52Maritime history of California — History of California This article is part of a series Timeline …
53Montauk Point Light — Montauk Point Lighthouse Location Montauk Point, Suffolk County, New York Year first lit 1797 Automated 1987 Foundation 13 ft (4 m) deep and 9 ft (3 m) thick, Natural, Emplaced, built in 1796 Constru …
54Charity Island Light — Historic deteriorated Charity Island Light (before the rebuilding) Location Big Charity Island, Michigan Coordinates …
55Old Mackinac Point Light — Location Mackinaw City, Michigan Year first constructed 1892 Year first lit 1892 Deactivated 1957 Foundation Ashlar limestone …
56Chicago Harbor Light — Location Chicago, Illinois Coordinates 41°53 …
57Poisson's spot — ▪ diffraction also called Arago s spot diffraction pattern produced by a small spherical object in the path of parallel light rays. French physicist Augustin Jean Fresnel (Fresnel, Augustin Jean) presented much of his work on diffraction… …
58Introduction to quantum mechanics — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Quantum mechanics. Quantum mechanics …
59Sagnac effect — The Sagnac effect (also called Sagnac Interference), named after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called ring interferometry …
60Stage lighting — Modern stage lighting is a flexible tool in the production of theatre, dance, opera and other performance arts. Several different types of stage lighting instruments are used in the pursuit of the various principles or goals of lighting.… …
