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  2. Sclerometer - Wikipedia

    en.wikipedia.org/wiki/Sclerometer

    The Turner-Sclerometer test consists of measuring the amount of load required to make a scratch. [1] [2] In test a weighted diamond point is drawn, once forward and once backward, over the smooth surface of the material to be tested. The hardness number is the weight in grams required to produce a standard scratch.

  3. Scratch hardness - Wikipedia

    en.wikipedia.org/wiki/Scratch_hardness

    Scratch hardness test or scratch test refers to any of a number of methods of measuring scratch hardness. Resistance to abrasion is less affected by surface variations than indentation methods. Scratch hardness is measured with a sclerometer. [1] Attempting to scratch a surface to test a material is a very old technique. [2]

  4. Portable appliance testing - Wikipedia

    en.wikipedia.org/wiki/Portable_appliance_testing

    A leakage current test is an alternative to the insulation resistance test. A deficiency of the insulation resistance test is that the DC voltage will not activate electromagnetic switches or internal relays etc. that are common in many modern power tools, computers, and TVs, etc. and therefore it can only test the appliance up to those components.

  5. Scratch test (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Scratch_test_(disambiguation)

    A Scratch test may refer to: The skin allergy test used in the medical diagnosis of allergies; Scratch hardness tests, such as Mohs scale of mineral hardness, used to measure the scratch resistance of various minerals; Liver scratch test, used by medical professionals to ascertain the location and size of a patient's liver during a physical ...

  6. Software cracking - Wikipedia

    en.wikipedia.org/wiki/Software_cracking

    Software crack illustration. Software cracking (known as "breaking" mostly in the 1980s [1]) is an act of removing copy protection from a software. [2] Copy protection can be removed by applying a specific crack. A crack can mean any tool that enables breaking software protection, a stolen product key, or guessed password. Cracking software ...

  7. Electrometer - Wikipedia

    en.wikipedia.org/wiki/Electrometer

    While the term "quadrant electrometer" eventually referred to Kelvin's version, this term was first used to describe a simpler device. Its body consists of an upright stem of wood affixed to a semicircle of ivory with angle markings. A light cork ball hangs by a string from a pivot at the center of the semicircle and makes contact with the stem.

  8. Paint adhesion testing - Wikipedia

    en.wikipedia.org/wiki/Paint_adhesion_testing

    The cross-cut test is a method for determining the resistance of paints and coatings to separation from substrates by utilizing a tool to cut a right-angle lattice pattern into the coating, penetrating to the substrate. A quick pass/fail test can be accomplished through this method.

  9. Scratch (programming language) - Wikipedia

    en.wikipedia.org/wiki/Scratch_(programming_language)

    Scratch 3.0 was first announced by the Scratch Team in 2016. Several public alpha versions were released between then and January 2018, after which the pre-beta "Preview" versions were released. [60] A beta version of Scratch 3.0 was released on 1 August 2018. [61] for use on most browsers; with the notable exception of Internet Explorer. [62]