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  2. Bimetallism - Wikipedia

    en.wikipedia.org/wiki/Bimetallism

    The exchange rate between the weights of gold and silver was 1 to 13.3 at the time. [1] Bimetallism, [a] also known as the bimetallic standard, is a monetary standard in which the value of the monetary unit is defined as equivalent to certain quantities of two metals, typically gold and silver, creating a fixed rate of exchange between them. [3 ...

  3. Western concert flute - Wikipedia

    en.wikipedia.org/wiki/Western_concert_flute

    Double Contrabass. Hyperbass. The Western concert flute is a family of transverse (side-blown) woodwind instruments made of metal or wood. It is the most common variant of the flute. A musician who plays the flute is called a “flautist” in British English, and a “flutist” in American English.

  4. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file

  5. William S. Haynes Flute Company - Wikipedia

    en.wikipedia.org/wiki/William_S._Haynes_Flute...

    The Q and Amadeus concert flutes use the standard Haynes A-442 Scale for their flute's ideal pitch. This is slightly higher than the Western standard concert pitch, which is A-440. Haynes also produces custom crowns and head joints. They make head joints and other parts of their instruments in a range of metals including silver, gold, and platinum.

  6. Silver standard - Wikipedia

    en.wikipedia.org/wiki/Silver_standard

    The first metal used as a currency was silver, more than 4,000 years ago, when silver ingots were used in trade. During the heyday of the Athenian empire, the city's silver tetradrachm was the first coin to achieve "international standard" status in Mediterranean trade.

  7. Ferrous metallurgy - Wikipedia

    en.wikipedia.org/wiki/Ferrous_metallurgy

    Ferrous metallurgy is the metallurgy of iron and its alloys. The earliest surviving prehistoric iron artifacts, from the 4th millennium BC in Egypt, [1] were made from meteoritic iron-nickel. [2] It is not known when or where the smelting of iron from ores began, but by the end of the 2nd millennium BC iron was being produced from iron ores in ...

  8. Western Standard - Wikipedia

    en.wikipedia.org/wiki/Western_Standard

    The Western Standard is a Canadian conservative social commentary media website operated by Western Standard New Media Corp. and its president Derek Fildebrandt. [1][2] The Standard is based in Calgary, Alberta, where its main offices are located. [3][4] The Standard also has bureaus in Victoria, Vancouver, Edmonton, Regina, Winnipeg and Ottawa ...

  9. Gold standard - Wikipedia

    en.wikipedia.org/wiki/Gold_standard

    Gold certificates were used as paper currency in the United States from 1882 to 1933. These certificates were freely convertible into gold coins. A gold standard is a monetary system in which the standard economic unit of account is based on a fixed quantity of gold. The gold standard was the basis for the international monetary system from the ...

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