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  2. Periscope - Wikipedia

    en.wikipedia.org/wiki/Periscope

    The Embedded Image Periscope (EIP) designed and patented by Kent Periscopes provides standard unity vision periscope functionality for normal daytime viewing of the vehicle surroundings plus the ability to display digital images from a range of on-vehicle sensors and cameras (including thermal and low light) such that the resulting image ...

  3. Submarine snorkel - Wikipedia

    en.wikipedia.org/wiki/Submarine_snorkel

    Also, "periscope feather" (the wave created by the snorkel or periscope moving through the water) can be spotted in calm seas. During the early months of the Battle of the Atlantic in World War II, British ships using the radar set Model 271 were able to detect the periscope of a submerged submarine at a distance of 800 m (0.50 mi) during tests ...

  4. Howard Grubb - Wikipedia

    en.wikipedia.org/wiki/Howard_Grubb

    Periscope Sir Howard Grubb FRS FRAS (28 July 1844 – 16 September 1931) was an Irish optical engineer . He was head of a family firm that made large optical telescopes , telescope drive controls, and other optical instruments.

  5. Earth inductor compass - Wikipedia

    en.wikipedia.org/wiki/Earth_inductor_compass

    The anemometer of the earth inductor compass on the Spirit of St. Louis shows as a small "T" shape above the fuselage behind the wing. The Earth inductor compass (or simply induction compass [1]) is a compass that determines directions using the principle of electromagnetic induction, with the Earth's magnetic field acting as the induction field for an electric generator. [2]

  6. Kaleidoscope - Wikipedia

    en.wikipedia.org/wiki/Kaleidoscope

    A toy kaleidoscope. A kaleidoscope (/ k ə ˈ l aɪ d ə s k oʊ p /) is an optical instrument with two or more reflecting surfaces (or mirrors) tilted to each other at an angle, so that one or more (parts of) objects on one end of these mirrors are shown as a symmetrical pattern when viewed from the other end, due to repeated reflection.

  7. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  8. Periscope lens - Wikipedia

    en.wikipedia.org/wiki/Periscope_lens

    Schematic of a conventional and a periscope zoom lens Xiaomi Mi 10 Ultra with a 5x optical zoom periscope lens camera, recognizable by the rectangular shape of its lens. A periscope lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope.

  9. diagrams.net - Wikipedia

    en.wikipedia.org/wiki/Diagrams.net

    diagrams.net (previously draw.io [2] [3]) is a cross-platform graph drawing software application developed in HTML5 and JavaScript. [4] Its interface can be used to create diagrams such as flowcharts , wireframes , UML diagrams, organizational charts , and network diagrams .