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  2. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    Volume Mass Surface area Density Gravity [note 3] ... gas giant planet; has rings: prehistoric: ... Io Jupiter I: 1 821.6 ...

  3. Io (moon) - Wikipedia

    en.wikipedia.org/wiki/Io_(moon)

    Io (/ ˈ aɪ. oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.

  4. Horton sphere - Wikipedia

    en.wikipedia.org/wiki/Horton_Sphere

    This makes spherical tanks the optimal solution for the storage of large amounts of liquefied gases, where liquefaction is achieved by pressurization, cryogenic refrigeration, or a combination thereof. Minimization of heat transfer is due to the sphere being the solid figure with the minimum surface area per unit volume. This is an advantage ...

  5. Atmosphere of Io - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Io

    Io is considered to be the most volcanically active body in our solar system. Pele type volcanism is believed to be the cause of sulfur components in the atmosphere. Volcanic plumes pump 10 4 kg of SO 2 (sulfur dioxide) per second into Io's atmosphere on average, though most of this is deposited back onto the surface.

  6. Surface area - Wikipedia

    en.wikipedia.org/wiki/Surface_area

    A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...

  7. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    The term cylinder in this context is sometimes confused with tank, the latter being an open-top or vented container that stores liquids under gravity, though the term scuba tank is commonly used to refer to a compressed gas cylinder used for breathing gas supply to an underwater breathing apparatus.

  8. Gas torus - Wikipedia

    en.wikipedia.org/wiki/Gas_torus

    In the Solar System, gas tori tend to be produced by the interaction of a satellite's atmosphere with the magnetic field of a planet. The most famous example of this is the Io plasma torus, which is produced by the ionization of roughly 1 ton per second of oxygen and sulfur from the tenuous atmosphere of Jupiter's volcanic moon Io. Before being ...

  9. Oil in place - Wikipedia

    en.wikipedia.org/wiki/Oil_in_place

    The analogous term original gas-in-place (OGIP) is used to refer to the total natural gas in a reservoir. Furthermore, there is a term called Hydrocarbons Initially in Place (HCIIP) that is used for either oil or gas. Similar to OIP, HCIIP is calculated using measures of the total reservoirs volume correcting for the non reservoir rock, the ...