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  2. MM2 - Wikipedia

    en.wikipedia.org/wiki/MM2

    MM2 may refer to: MM2, a class of force fields; see force field (chemistry) MM2 (MMS), an interface utilized by the Multimedia Messaging Service standard; Mega Man 2, a 1988 video game for the NES; Mega Man II, a 1991 video game for the Game Boy; Midtown Madness 2, a 2000 video game for the PC; Motocross Madness 2, a 2000 video game for the PC

  3. Gestetner - Wikipedia

    en.wikipedia.org/wiki/Gestetner

    An A4-size Gestetner offset-printing machine. The Gestetner is a type of duplicating machine named after its inventor, David Gestetner (1854–1939). During the 20th century, the term Gestetner was used as a verb—as in Gestetnering. [1] The Gestetner company established its base in London, filing its first patent in 1879.

  4. Pointing machine - Wikipedia

    en.wikipedia.org/wiki/Pointing_machine

    The pointing machine is used for making one-to-one copies of existing sculptures and to reproduce models made of plaster, modeling clay or modeling wax in materials like stone or wood. It is not possible to use a pointing machine to produce enlarged or reduced copies; the traditional instruments for this are a set of calipers or a three ...

  5. Vickers hardness test - Wikipedia

    en.wikipedia.org/wiki/Vickers_hardness_test

    Vickers values are generally independent of the test force: they will come out the same for 500 gf and 50 kgf, as long as the force is at least 200 gf. [6] However, lower load indents often display a dependence of hardness on indent depth known as the indentation size effect (ISE). [ 7 ]

  6. Rockwell hardness test - Wikipedia

    en.wikipedia.org/wiki/Rockwell_hardness_test

    The Rockwell test does not use any optical equipment to measure the hardness indention, rather all calculations are done within the machine to measure the indention in the specimen. [ 13 ] The equation for Rockwell hardness is H R = N − h ∗ d {\displaystyle HR=N-h*d} , where d is the depth in mm (from the zero load point), and N and h are ...

  7. Deus ex machina - Wikipedia

    en.wikipedia.org/wiki/Deus_ex_machina

    Deus ex machina in Euripides' Medea, performed in 2009 in Syracuse, Italy; the sun god sends a golden chariot to rescue Medea.. Deus ex machina (/ ˌ d eɪ ə s ɛ k s ˈ m æ k ɪ n ə, ˈ m ɑː k-/ DAY-əs ex-MA(H)K-in-ə, [1] Latin: [ˈdɛ.ʊs ɛks ˈmaːkʰɪnaː]; plural: dei ex machina; 'God from the machine') [2] [3] is a plot device whereby a seemingly unsolvable problem in a story is ...

  8. Quartz crystal microbalance - Wikipedia

    en.wikipedia.org/wiki/Quartz_crystal_microbalance

    For planar piezoelectric crystals, φ takes the value φ = Ae/d q, where A is the effective area, e is the piezoelectric stress coefficient [28] (e = 9.65·10 −2 C/m 2 for AT-cut quartz) and d q is the thickness of the plate. The transformer often is not explicitly depicted.

  9. Copying lathe - Wikipedia

    en.wikipedia.org/wiki/Copying_lathe

    The Blanchard lathe, invented by Thomas Blanchard, revolutionized the process of gun stock making in the 1820s, after it was invented. [3] Blanchard's copying lathe traced a model to turn gun stocks, producing the desired contour automatically. [4]