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  2. List of mutual planetary eclipses - Wikipedia

    en.wikipedia.org/wiki/List_of_mutual_planetary...

    The first table dedicated to mutual planetary occultations was published in 1979 by Steven Albers, ... 8.7 8 Too close to Sun? [ε ... 36.3 βε] Earth-696-03-16 ...

  3. Richter scale - Wikipedia

    en.wikipedia.org/wiki/Richter_scale

    The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]

  4. Torino scale - Wikipedia

    en.wikipedia.org/wiki/Torino_scale

    The Torino scale is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets.It is intended as a communication tool for astronomers and the public to assess the seriousness of collision predictions, by combining probability statistics and known kinetic damage potentials into a single threat value.

  5. 7 mm caliber - Wikipedia

    en.wikipedia.org/wiki/7_mm_caliber

    An overview of 7mm caliber cartridges, their history, and uses in firearms.

  6. 7.92×57mm Mauser - Wikipedia

    en.wikipedia.org/wiki/7.92×57mm_Mauser

    Ballistic tables for the S Patrone and the s.S. Patrone fired from a 600 mm (23.6 in) barrel. [7] [23] Germany produced many military versions of the cartridge, and continued the development of different variations until the end of World War II. The bullet lengths substantially varied between the different cartridge types, but all were loaded ...

  7. 6.8mm Remington SPC - Wikipedia

    en.wikipedia.org/wiki/6.8mm_Remington_SPC

    The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.

  8. M36 tank destroyer - Wikipedia

    en.wikipedia.org/wiki/M36_tank_destroyer

    The M36 tank destroyer, formally 90 mm Gun Motor Carriage, M36, was an American tank destroyer used during World War II.The M36 combined the hull of the M10 tank destroyer, which used the M4 Sherman's reliable chassis and drivetrain combined with sloped armor, and a new turret mounting the 90 mm gun M3.

  9. List of gravitational wave observations - Wikipedia

    en.wikipedia.org/wiki/List_of_gravitational_wave...

    It was published in 2020 that a gamma-ray burst was detected ~0.5 seconds after the LIGO trigger, lasting 6 seconds and bearing similarities to GRB170817 (such as weakness [most power in sub-100 keV, or soft X-rays) bands], elevated energetic photon background levels [signal exceeding background by less than a factor of 2], and similar ...