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  2. Deepsea Challenger - Wikipedia

    en.wikipedia.org/wiki/Deepsea_Challenger

    Deepsea Challenger (DCV 1) is a 7.3-metre (24 ft) deep-diving submersible designed to reach the bottom of the Challenger Deep, the deepest-known point on Earth.On 26 March 2012, Canadian film director James Cameron piloted the craft to accomplish this goal in the second crewed dive reaching the Challenger Deep.

  3. Crust (geology) - Wikipedia

    en.wikipedia.org/wiki/Crust_(geology)

    Crust (geology) The internal structure of Earth. In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase (solid crust vs. liquid mantle).

  4. Minor tombs in the Valley of the Kings - Wikipedia

    en.wikipedia.org/wiki/Minor_tombs_in_the_Valley...

    The tomb consists of a single chamber accessed by a shaft, but the presence of an unexcavated doorway in the chambers back wall might lead to further rooms beyond. There is evidence for at least two burials in the tomb and besides human remains other finds include mummy trappings and pottery datable to the reign of Thutmose IV, which suggest an ...

  5. Great Pyramid of Giza - Wikipedia

    en.wikipedia.org/wiki/Great_Pyramid_of_Giza

    The Subterranean Chamber, or "Pit", is the lowest of the three main chambers and the only one dug into the bedrock beneath the pyramid. Located about 27 m (89 ft) below base level, [ 98 ] it measures roughly 16 cubits (8.4 m; 27.5 ft) north-south by 27 cubits (14.1 m; 46.4 ft) east-west, with an approximate height of 4 m (13 ft).

  6. RL10 - Wikipedia

    en.wikipedia.org/wiki/RL10

    The RL10 is a liquid-fuel cryogenic rocket engine built in the United States by Aerojet Rocketdyne that burns cryogenic liquid hydrogen and liquid oxygen propellants. Modern versions produce up to 110 kN (24,729 lb f) of thrust per engine in vacuum. Three RL10 versions are in production for the Centaur upper stage of the Atlas V and the DCSS of ...

  7. .17 HM2 - Wikipedia

    en.wikipedia.org/wiki/.17_HM2

    Source (s): Hornady [1] The .17 Hornady Mach 2, commonly known as the .17 HM2, is a rimfire cartridge introduced in 2004 by the ammunition manufacturer Hornady, following the successful launch in 2002 of the .17 HMR. The .17 HM2 is based on the .22 Long Rifle "Stinger" case, necked down to .17 caliber (4.5 mm) and using a bullet weighing less ...

  8. Lena Raine - Wikipedia

    en.wikipedia.org/wiki/Lena_Raine

    lena.fyi. Lena Raine (/ ˈleɪ.nə / LAY-nə or / ˈlɛ.nə / LEN-ə; [2] born February 29, 1984), also known as Lena Chappelle or Kuraine, [3][1] is an American-Canadian composer, producer, and video game developer. Raine is best known for her work on the soundtracks of Celeste, Minecraft and Guild Wars 2. She has composed music for various ...

  9. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself. There are many areas of mathematics, which include number theory (the study of numbers), algebra (the study of formulas and related structures), geometry (the study ...