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  2. Lazy Game Reviews - Wikipedia

    en.wikipedia.org/wiki/Lazy_Game_Reviews

    Clint Basinger (born December 20, 1986), [2] better known as LGR (originally an initialism of Lazy Game Reviews), is an American YouTuber who focuses on video game reviews, retrocomputing, and unboxing videos. His YouTube channel of the same name has been compared to Techmoan and The 8-Bit Guy. [3] [4] [5] Basinger is known for building ...

  3. Turbo encabulator - Wikipedia

    en.wikipedia.org/wiki/Turbo_encabulator

    The turbo encabulator is a fictional electromechanical machine with a satirical technobabble description that became a famous in-joke among engineers after it was published by the British Institution of Electrical Engineers in their Students' Quarterly Journal in 1944.

  4. Water wheel - Wikipedia

    en.wikipedia.org/wiki/Water_wheel

    A special type of overshot/backshot wheel is the reversible water wheel. This has two sets of blades or buckets running in opposite directions so that it can turn in either direction depending on which side the water is directed. Reversible wheels were used in the mining industry in order to power various means of ore conveyance. By changing ...

  5. List of blade materials - Wikipedia

    en.wikipedia.org/wiki/List_of_blade_materials

    The blade is made of non-rustproof carbon steel, blue-plastered by hand and finely forged from the base to the tip of the knife. The 90 mm (3.5 in) long blade shows patina (dark spots) caused by decades of use. It can easily be sharpened to a shaving sharp edge. Carbon steel is a popular choice for rough-use knives and cheaper options.

  6. Variable-pitch propeller (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Variable-pitch_propeller...

    Dowty Rotol R391 six-blade composite controllable- and reversible-pitch propeller of a C-130J Super Hercules. In aeronautics, a variable-pitch propeller is a type of propeller (airscrew) with blades that can be rotated around their long axis to change the blade pitch.

  7. Voith Schneider Propeller - Wikipedia

    en.wikipedia.org/wiki/Voith_Schneider_Propeller

    The Voith Schneider propeller was originally a design for a hydro-electric turbine. [2] Its Austrian inventor, Ernst Schneider, had a chance meeting on a train with a manager at Voith's subsidiary St. Pölten works; this led to the turbine being investigated by Voith's engineers, who discovered that although it was no more efficient than other water turbines, Schneider's design worked well as ...

  8. Archimedes' screw - Wikipedia

    en.wikipedia.org/wiki/Archimedes'_screw

    The screw pump is the oldest positive displacement pump. [1] The first records of a water screw, or screw pump, date back to Hellenistic Egypt before the 3rd century BC. [1] [3] The Egyptian screw, used to lift water from the Nile, was composed of tubes wound round a cylinder; as the entire unit rotates, water is lifted within the spiral tube to the higher elevation.

  9. Contra-rotating propellers - Wikipedia

    en.wikipedia.org/wiki/Contra-rotating_propellers

    Contra-rotating propellers Contra-rotating propellers on the Rolls-Royce Griffon-powered P-51XR Mustang Precious Metal at the 2014 Reno Air Races. Aircraft equipped with contra-rotating propellers (CRP) [1] coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine or turboprop engine to drive a pair of coaxial propellers in contra ...