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  2. Marsh gas - Wikipedia

    en.wikipedia.org/wiki/Marsh_gas

    Bubbles of methane, created by methanogens, that are present in the marsh, more commonly known as marsh gas. Marsh gas, also known as swamp gas or bog gas, is a mixture primarily of methane and smaller amounts of hydrogen sulfide, carbon dioxide, and trace phosphine that is produced naturally within some geographical marshes, swamps, and bogs.

  3. AP Human Geography - Wikipedia

    en.wikipedia.org/wiki/AP_Human_Geography

    Advanced Placement (AP) Human Geography (also known as AP Human Geo, AP Geography, APHG, AP HuGe, APHug, AP Human, HuGS, AP HuGo, or HGAP) is an Advanced Placement social studies course in human geography for high school, usually freshmen students in the US, culminating in an exam administered by the College Board.

  4. Paulding Light - Wikipedia

    en.wikipedia.org/wiki/Paulding_Light

    Paulding Light. The Paulding Light (also called the Lights of Paulding or the Dog Meadow Light) is a light that appears in a valley outside Paulding, Michigan.Reports of the light have appeared since the 1960s, with popular folklore providing such explanations as ghosts, geologic activity, or swamp gas.

  5. Swampland (physics) - Wikipedia

    en.wikipedia.org/wiki/Swampland_(physics)

    Developments in string theory also suggest that the string theory landscape of false vacuum is vast, so it is natural to ask if the landscape is as vast as allowed by anomaly-free effective field theories. The Swampland program aims to delineate the theories of quantum gravity by identifying the universal principles shared among all theories ...

  6. Will-o'-the-wisp - Wikipedia

    en.wikipedia.org/wiki/Will-o'-the-wisp

    The Will o' the Wisp and the Snake by Hermann Hendrich (1854–1931). In folklore, a will-o'-the-wisp, will-o'-wisp, or ignis fatuus (Latin for 'foolish flame'; [1] pl. ignes fatui), is an atmospheric ghost light seen by travellers at night, especially over bogs, swamps or marshes.

  7. Get Up and Go - Wikipedia

    en.wikipedia.org/wiki/Get_Up_And_Go

    A song by the Go-Go's on Vacation (The Go-Go's album) A song by The Rutles; Get Up and Go!, a 1981–1983 British children's television series; Another name for the Timed Up and Go test, a medical test used to evaluate a patient's abilities to perform activities of daily living

  8. Gibbs paradox - Wikipedia

    en.wikipedia.org/wiki/Gibbs_paradox

    If our theory calls gases A and B the same, then entropy does not change when we mix them. If our theory calls gases A and B different, then entropy does increase when they are mixed. This insight suggests that the ideas of "thermodynamic state" and of "entropy" are somewhat subjective.

  9. Mudsill theory - Wikipedia

    en.wikipedia.org/wiki/Mudsill_theory

    Mudsill theory is the proposition that there must be, and always has been, a lower class or underclass for the upper classes and the rest of society to rest upon. The term derives from a mudsill , the lowest threshold that supports the foundation for a building.