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  2. Standard 8 mm film - Wikipedia

    en.wikipedia.org/wiki/Standard_8_mm_film

    Standard 8 mm film, also known as Regular 8 mm, Double 8 mm, Double Regular 8 mm film, or simply as Standard 8 or Regular 8, is an 8 mm film format originally developed by the Eastman Kodak company and released onto the market in 1932.

  3. Magnetochromism - Wikipedia

    en.wikipedia.org/wiki/Magnetochromism

    Magnetochromism is the term applied when a chemical compound changes colour under the influence of a magnetic field. In particular the magneto-optical effects exhibited by complex mixed metal compounds are called magnetochromic when they occur in the visible region of the spectrum.

  4. Conservation and restoration of film - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    AD strips are dye-coated paper strips that can detect and measure the severity of vinegar syndrome in film collections. The strips change color, shifting from a blue to green to level, based on the level of acidity found. If the AD strip level remains at blue, the film is in good condition and no deterioration is present.

  5. Do magnets affect credit cards? - AOL

    www.aol.com/finance/magnets-affect-credit-cards...

    Magnetic strips and EMV chips can sustain damage from being scratched, for example, by a key or coin. These scratches can make it difficult for card readers to pick up the information on the ...

  6. Svema - Wikipedia

    en.wikipedia.org/wiki/Svema

    The use of Svema color film was common for Soviet and post-Soviet cinema from the late 1960s until the late 1990s with some student works being shot on Svema up until 2010s. Svema lost its market share in former Soviet Union countries to imported products during late 1990s when magnetic tapes were superseded by compact discs. The enterprise ...

  7. Film stock - Wikipedia

    en.wikipedia.org/wiki/Film_stock

    Kinemacolor (1908–1914), Technicolor processes 1 through 4 (1917–1954), and Cinecolor used one, two or three strips of monochrome film stock sensitized to certain primary colors or exposed behind color filters in special cameras.

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  9. Permalloy - Wikipedia

    en.wikipedia.org/wiki/Permalloy

    Strip of permalloy. Permalloy is a nickel–iron magnetic alloy, with about 80% nickel and 20% iron content.Invented in 1914 by physicist Gustav Elmen at Bell Telephone Laboratories, [1] it is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields.

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