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  2. Orion Telescopes & Binoculars - Wikipedia

    en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

    Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...

  3. Alhazen's problem - Wikipedia

    en.wikipedia.org/wiki/Alhazen's_problem

    Alhazen's problem, also known as Alhazen's billiard problem, is a mathematical problem in geometrical optics first formulated by Ptolemy in 150 AD. [1] It is named for the 11th-century Arab mathematician Alhazen ( Ibn al-Haytham ) who presented a geometric solution in his Book of Optics .

  4. Binoculars - Wikipedia

    en.wikipedia.org/wiki/Binoculars

    8×42 roof prism binoculars with rainguard and opened tethered lens caps. Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.

  5. Orion (rocket stage) - Wikipedia

    en.wikipedia.org/wiki/Orion_(rocket_stage)

    Orion is a series of American solid-fuel rocket stages, developed and manufactured by a joint venture between Hercules Aerospace and Alliant Techsystems (now Northrop Grumman Innovation Systems). They were originally developed for use as all three stages on the Pegasus rocket , first flown in 1990.

  6. Solution of triangles - Wikipedia

    en.wikipedia.org/wiki/Solution_of_triangles

    Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known. The triangle can be located on a plane or on a sphere. Applications requiring triangle solutions include geodesy, astronomy, construction, and navigation.

  7. Orion (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Orion_(spacecraft)

    Orion (Orion Multi-Purpose Crew Vehicle or Orion MPCV) is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists of a Crew Module (CM) space capsule designed by Lockheed Martin that is paired with a European Service Module (ESM) manufactured by Airbus Defence and Space .

  8. Nuclear pulse propulsion - Wikipedia

    en.wikipedia.org/wiki/Nuclear_pulse_propulsion

    Project Orion was the first serious attempt to design a nuclear pulse rocket. A design was formed at General Atomics during the late 1950s and early 1960s, with the idea of reacting small directional nuclear explosives utilizing a variant of the Teller–Ulam two-stage bomb design against a large steel pusher plate attached to the spacecraft ...

  9. Orion Bus Industries - Wikipedia

    en.wikipedia.org/wiki/Orion_Bus_Industries

    Orion Bus Industries, also known as Bus Industries of America in the United States, was a private bus manufacturer based in Mississauga, Ontario, Canada.. The company had its main manufacturing plant in Mississauga and sent bus body shells to their plant in Oriskany, New York, for final assembly and testing of vehicles destined for U.S. markets. [1]