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  2. Shotgun - Wikipedia

    en.wikipedia.org/wiki/Shotgun

    For example, the Brown Bess musket, in service with the British army from 1722 to 1838, had a 19 mm (.75 inch) smoothbore barrel, roughly the same as a 10-gauge shotgun, and was 157 cm (62 in) long, just short of the above recommended 168 cm (5 1 ⁄ 2 feet).

  3. Copper in heat exchangers - Wikipedia

    en.wikipedia.org/wiki/Copper_in_heat_exchangers

    Admiralty metal, a 70% Cu-30% Zn yellow brass alloy with 1% tin added to improve corrosion resistance, was introduced in 1890 for seawater service. [2] By the 1920s, a 70% Cu-30% Ni alloy was developed for naval condensers. Soon afterwards, a 2% manganese and 2% iron copper alloy was introduced for better erosion resistance. A 90% Cu-10% Ni ...

  4. Liebig condenser - Wikipedia

    en.wikipedia.org/wiki/Liebig_condenser

    Liebig condenser. The Liebig condenser (/ ˈ l iː b ɪ ɡ /, LEE-big) [1] or straight condenser is a piece of laboratory equipment, specifically a condenser consisting of a straight glass tube surrounded by a water jacket. In typical laboratory operation, such as distillation, the condenser is clamped to a retort stand in vertical

  5. List of weapons in the American Civil War - Wikipedia

    en.wikipedia.org/wiki/List_of_weapons_in_the...

    This breechloading cannon had a 2-inch bore and fired five rounds thanks to a revolving cylinder. At least one was used by the Confederates at the Siege of Petersburg and later captured by the Union. [23] [24] Claxton machine gun: A double-barrel weapon invented by F.S. Claxton, son of naval officer Alexander Claxton.

  6. Sawed-off shotgun - Wikipedia

    en.wikipedia.org/wiki/Sawed-off_shotgun

    A sawed-off break-action shotgun of the type commonly known as a lupara. A sawed-off shotgun (also called a scattergun, sawn-off shotgun, short-barrelled shotgun, shorty, or boom stick) is a type of shotgun with a shorter gun barrel—typically under 18 inches (46 cm)—and often a pistol grip instead of a longer shoulder stock.

  7. Cold finger - Wikipedia

    en.wikipedia.org/wiki/Cold_finger

    The raw product (6) is in the bottom of the outer tube (4) which is heated (7) while under vacuum (through side-arm 3). The sublimated material collects (5) on the cold finger proper, cooled by a coolant (blue) circulated through ports 1 and 2. A cold finger is a piece of laboratory equipment that is used to generate a localized cold surface.

  8. Shotgun slug - Wikipedia

    en.wikipedia.org/wiki/Shotgun_slug

    A Brenneke-style shotgun slug. A shotgun slug is a heavy projectile (a slug) made of lead, copper, or other material and fired from a shotgun.Slugs are designed for hunting large game, and other uses, particularly in areas near human population where their short range and slow speed helps increase safety margin.

  9. Condenser (laboratory) - Wikipedia

    en.wikipedia.org/wiki/Condenser_(laboratory)

    The Allihn condenser or bulb condenser is named after Felix Richard Allihn (1854–1915). [ 12 ] [ 13 ] [ 14 ] The Allihn condenser consists of a long glass tube with a water jacket . A series of bulbs on the tube increases the surface area upon which the vapor constituents may condense.