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  2. Storm glass - Wikipedia

    en.wikipedia.org/wiki/Storm_glass

    In 1863, Charles Tomlinson published an analysis in The Philosophical Magazine concluding that, while attractive, "I think it may fairly be concluded from these experiments and observations that the storm-glass acts as a crude kind of thermoscope, inferior, for most of the purposes of observation, to the thermometer."

  3. Chain fountain - Wikipedia

    en.wikipedia.org/wiki/Chain_fountain

    The higher the jar containing the chain is placed above the ground, the higher the chain will rise above the jar during the "siphoning" phase. As demonstrated in an experiment, when the jar is placed 30 metres (98 ft) above the ground and the chain is sufficiently long, the arc of the chain fountain can reach a height of about 2.1 m (6 ft 11 in ...

  4. Bell jar - Wikipedia

    en.wikipedia.org/wiki/Bell_jar

    A bell jar is a glass jar, similar in shape to a bell (i.e. in its best-known form it is open at the bottom, while its top and sides together are a single piece), and can be manufactured from a variety of materials (ranging from glass to different types of metals). Bell jars are often used in laboratories to form and contain a vacuum.

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  6. Cyclonic separation - Wikipedia

    en.wikipedia.org/wiki/Cyclonic_separation

    As the cyclone is essentially a two phase particle-fluid system, fluid mechanics and particle transport equations can be used to describe the behaviour of a cyclone. The air in a cyclone is initially introduced tangentially into the cyclone with an inlet velocity . Assuming that the particle is spherical, a simple analysis to calculate critical ...

  7. Einstellung effect - Wikipedia

    en.wikipedia.org/wiki/Einstellung_effect

    An example water jar puzzle. The water jar test, first described in Abraham S. Luchins' 1942 classic experiment, [1] is a commonly cited example of an Einstellung situation. . The experiment's participants were given the following problem: there are 3 water jars, each with the capacity to hold a different, fixed amount of water; the subject must figure out how to measure a certain amount of ...

  8. Cyclone - Wikipedia

    en.wikipedia.org/wiki/Cyclone

    An extratropical cyclone can transform into a subtropical storm, and from there into a tropical cyclone, if it dwells over warm waters sufficient to warm its core, and as a result develops central convection. [37] A particularly intense type of extratropical cyclone that strikes during winter is known colloquially as a nor'easter.

  9. Leyden jar - Wikipedia

    en.wikipedia.org/wiki/Leyden_jar

    The Leyden jar was used to conduct many early experiments in electricity, and its discovery was of fundamental importance in the study of electrostatics. It was the first means of accumulating and preserving electric charge in large quantities that could be discharged at the experimenter's will, thus overcoming a significant limit to early ...