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  2. Swan neck flask - Wikipedia

    en.wikipedia.org/wiki/Swan_neck_flask

    A swan neck flask, also known as a gooseneck flask, is a round-bottom flask with a narrow s-shaped tube as its opening to reduce contact between the inner contents and external environment. The motion of air through the tube is slowed and aerosolized bacteria or other particles in the air tend to become trapped by moisture on the tube's inner ...

  3. Gooseneck - Wikipedia

    en.wikipedia.org/wiki/Gooseneck

    Gooseneck (piping), a piping or ductwork feature; A crowbar (tool) A gooseneck flask (or swan neck flask) is a flask used in biology that has a curved neck to trap particulate; A gooseneck trailer hitch, for commercial and agricultural use; Gooseneck (fixture), a type of flexible tubing used in gooseneck lamps or microphone stands

  4. Gooseneck (fixture) - Wikipedia

    en.wikipedia.org/wiki/Gooseneck_(fixture)

    A gooseneck is a semi-rigid, flexible joining element made from a coiled metal hose. Similar to its natural counterpart , it can be bent in almost any direction and remain in that position. [ 1 ] Areas of application for goosenecks are movable brackets for lights , magnifying glasses , microphones and other devices. [ 2 ]

  5. I work in a research lab and know how to make science fun for ...

    www.aol.com/news/research-lab-know-science-fun...

    For another fun activity, we use salt as snow melt and pretend to go "ice fishing" in a cereal bowl full of water and ice. Putting salt on an ice cube changes the freezing point, causing the ice ...

  6. Nylon rope trick - Wikipedia

    en.wikipedia.org/wiki/Nylon_Rope_Trick

    Acid Chloride Preparative Route for Nylon-6,10, which is often used in the nylon rope trick. The nylon rope trick is a scientific demonstration that illustrates some of the fundamental chemical principles of step-growth polymerization and provides students and other observers with a hands-on demonstration of the preparation of a synthetic polymer.

  7. Gooseneck (piping) - Wikipedia

    en.wikipedia.org/wiki/Gooseneck_(piping)

    Gooseneck vent with check valve being repainted. A gooseneck (or goose neck) is a 180° pipe fitting at the top of a vertical pipe that prevents entry of water. Common implementations of goosenecks are ventilator piping or ducting for bathroom and kitchen exhaust fans, ship holds, landfill methane vent pipes, or any other piping implementation exposed to the weather where water ingress would ...

  8. Schlenk line - Wikipedia

    en.wikipedia.org/wiki/Schlenk_line

    Air-free technique gives a broad overview of methods including: Glovebox – used to manipulate air-sensitive (oxygen- or moisture-sensitive) chemicals. Schlenk flask – reaction vessel for handling air-sensitive compounds. Perkin triangle – used for the distillation of air-sensitive compounds.

  9. Dropping funnel - Wikipedia

    en.wikipedia.org/wiki/Dropping_funnel

    Dropping funnels are usually constructed with a ground glass joint at the bottom, which allows the funnel to fit snugly onto a round bottom flask. This also means it need not be clamped separately. [1] Dropping funnels have been in use since at least the mid-1800s. [2]