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  2. Greenfield (Minecraft) - Wikipedia

    en.wikipedia.org/wiki/Greenfield_(Minecraft)

    According to Planet Minecraft statistics, Greenfield is the third-most downloaded Minecraft map of all time. [ 6 ] Greenfield is designed to resemble the West Coast of the United States, heavily inspired by Los Angeles , [ 2 ] and is built to a one-to-one scale, with each block's size being one cubic meter. [ 7 ]

  3. Trans-Alaska Pipeline System - Wikipedia

    en.wikipedia.org/wiki/Trans-Alaska_Pipeline_System

    A third type of common maintenance is the installation and replacement of sacrificial anodes along the subterranean portions of pipeline. These anodes reduce the corrosion caused by electrochemical action that affect these interred sections of pipeline. Excavation and replacement of the anodes is required as they corrode. [165]

  4. .17 HMR - Wikipedia

    en.wikipedia.org/wiki/.17_HMR

    .17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by Hornady [3] in 2002. It was developed by necking down a .22 Winchester Magnum Rimfire case to take a .17 caliber (4.5mm) projectile.

  5. Rectifier - Wikipedia

    en.wikipedia.org/wiki/Rectifier

    For single-phase AC, if the transformer is center-tapped, then two diodes back-to-back (cathode-to-cathode or anode-to-anode, depending on output polarity required) can form a full-wave rectifier. Twice as many turns are required on the transformer secondary to obtain the same output voltage than for a bridge rectifier, but the power rating is ...

  6. Liquid rocket propellant - Wikipedia

    en.wikipedia.org/wiki/Liquid_rocket_propellant

    This was historically used for reaction control systems, due to being easily storable. It is often used to drive Turbopumps, being used on the V2 rocket, and modern Soyuz. Hydrazine decomposes energetically to nitrogen, hydrogen, and ammonia (2N 2 H 4 → N 2 +H 2 +2NH 3) and is the most widely used in space vehicles. (Non-oxidized ammonia ...

  7. Switched-mode power supply - Wikipedia

    en.wikipedia.org/wiki/Switched-mode_power_supply

    Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

  8. Photosystem I - Wikipedia

    en.wikipedia.org/wiki/Photosystem_I

    Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH. [2] The photon energy absorbed by Photosystem I also produces a proton-motive force that is used to generate ATP. PSI is composed of more than 110 cofactors, significantly more than Photosystem II. [3]

  9. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    Used as the primary coolant in the British advanced gas-cooled reactor for nuclear power generation. Carbon dioxide induction is commonly used for the euthanasia of laboratory research animals. Methods to administer CO 2 include placing animals directly into a closed, prefilled chamber containing CO 2 , or exposure to a gradually increasing ...