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  2. Cloaking device - Wikipedia

    en.wikipedia.org/wiki/Cloaking_device

    An operational, non-fictional cloaking device might be an extension of the basic technologies used by stealth aircraft, such as radar-absorbing dark paint, optical camouflage, cooling the outer surface to minimize electromagnetic emissions (usually infrared), or other techniques to minimize other EM emissions, and to minimize particle emissions from the object.

  3. Metamaterial cloaking - Wikipedia

    en.wikipedia.org/wiki/Metamaterial_cloaking

    The purpose of a cloaking device is to hide something, so that a defined region of space is invisibly isolated from passing electromagnetic fields (or sound waves), as with Metamaterial cloaking. [5] [13] Cloaking objects, or making them appear invisible with metamaterials, is roughly analogous to a magician's sleight of hand, or his tricks ...

  4. Theories of cloaking - Wikipedia

    en.wikipedia.org/wiki/Theories_of_cloaking

    A cloaking device is one where the purpose of the transformation is to hide something, so that a defined region of space is invisibly isolated from passing electromagnetic fields (see Metamaterial cloaking [1] [2]) or sound waves. Objects in the defined location are still present, but incident waves are guided around them without being affected ...

  5. Foxhole radio - Wikipedia

    en.wikipedia.org/wiki/Foxhole_radio

    [1] [2] They were first reported at the Battle of Anzio, Italy, spreading later across the European and Pacific theaters. The foxhole radio was a crude crystal radio which used a safety razor blade as a radio wave detector with the blade acting as the crystal, and a wire, safety pin, or, later, a graphite pencil lead serving as the cat's whisker .

  6. Crystal detector - Wikipedia

    en.wikipedia.org/wiki/Crystal_detector

    Galena cat whisker detector used in early crystal radio Precision crystal detector with iron pyrite crystal, used in commercial wireless stations, 1914. The crystal is inside the metal capsule under the vertical needle (right). The leaf springs and thumbscrew allow fine adjustment of the pressure of the needle on the crystal.

  7. World of Warcraft Classic - Wikipedia

    en.wikipedia.org/wiki/World_of_Warcraft_Classic

    World of Warcraft Classic is a 2019 massively multiplayer online role-playing game developed and published by Blizzard Entertainment. Running alongside the main version of the game , Classic recreates World of Warcraft in the vanilla state it was in before the release of its first expansion , The Burning Crusade .

  8. Rochester Cloak - Wikipedia

    en.wikipedia.org/wiki/Rochester_Cloak

    Rochester Cloak is a cloaking device which can be built using inexpensive, everyday materials. John Howell, a professor of physics at the University of Rochester, and graduate student Joseph Choi developed the device, which features four standard lenses that allows an object to appear invisible as the viewer moves several degrees away from the optimal viewing positions.

  9. Mainframe Studios - Wikipedia

    en.wikipedia.org/wiki/Mainframe_Studios

    Mainframe Studios is a Canadian animation studio owned by Wow Unlimited Media and based in Vancouver, British Columbia.Founded in 1993 as Mainframe Entertainment Inc. by Christopher Brough, Ian Pearson, Phil Mitchell, Gavin Blair and John Grace, the company established itself as a leading contributor to the introduction of computer-generated imagery (CGI) live action in animation, film and ...