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  2. Silver standards - Wikipedia

    en.wikipedia.org/wiki/Silver_standards

    88 zolotnik Russian silver has the equivalent millesimal fineness of 916[6]. The alloy contains 91.66% pure silver and 8.34% copper or other metals. (The description of the zolotnik is above.) [4] [8] Coin silver has a millesimal fineness of 900. The term "coin silver" was derived from the fact that much of it was made from melting down silver ...

  3. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    Imperial Russian coinage between 1797 [10] and 1885. [11] 835: A standard predominantly used in Germany after 1884, and for some Dutch silver; and for the minting of coins in countries of the Latin Monetary Union; 833: (5 ⁄ 6) a common standard for continental silver especially among the Dutch, Swedish, and Germans

  4. Lever rule - Wikipedia

    en.wikipedia.org/wiki/Lever_rule

    In chemistry, the lever rule is a formula used to determine the mole fraction (x i) or the mass fraction (w i) of each phase of a binary equilibrium phase diagram.It can be used to determine the fraction of liquid and solid phases for a given binary composition and temperature that is between the liquidus and solidus line.

  5. Dilution ratio - Wikipedia

    en.wikipedia.org/wiki/Dilution_ratio

    In other areas of science such as pharmacy, and in non-scientific usage, a dilution is normally given as a plain ratio of solvent to solute. For large factors, this confusion makes only a minor difference, but in precise work it can be important to make clear whether dilution ratio or dilution factor is intended.

  6. Gladstone–Dale relation - Wikipedia

    en.wikipedia.org/wiki/Gladstone–Dale_relation

    The plot of volume or density versus molecular fraction of ethanol in water is a quadratic curve. However, the plot of index of refraction versus molecular fraction of ethanol in water is linear, and the weight fraction equals the fractional density [4] In the 1900s, the Gladstone–Dale relation was applied to glass, synthetic crystals and ...

  7. 4-8-8-4 - Wikipedia

    en.wikipedia.org/wiki/4-8-8-4

    Swiss classification: '4/6+4/6' The equivalent UIC classification is refined to (2′D)D2′ for simple articulated locomotives. A similar wheel arrangement exists for Garratt locomotives, but is referred to as 4-8-0+0-8-4 since both engine units swivel. 4-8-8-4 Big Boys were only produced for the Union Pacific Railroad. Twenty-five such ...

  8. Seats-to-votes ratio - Wikipedia

    en.wikipedia.org/wiki/Seats-to-votes_ratio

    The D'Hondt method approximates proportionality by minimizing the largest seats-to-votes ratio among all parties. [2] The largest seats-to-votes ratio, which measures how over-represented the most over-represented party among all parties is:

  9. Damping - Wikipedia

    en.wikipedia.org/wiki/Damping

    Damping not based on energy loss can be important in other oscillating systems such as those that occur in biological systems and bikes [4] (ex. Suspension (mechanics)). Damping is not to be confused with friction, which is a type of dissipative force acting on a system. Friction can cause or be a factor of damping.