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  2. List of mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_mnemonics

    A mnemonic to remember which way to turn common (right-hand thread) screws and nuts, including light bulbs, is "Righty-tighty, Lefty-loosey"; another is "Right on, Left off". [ 8 ] : 165 For the OSI Network Layer model P lease D o N ot T hrow S ausage P izza A way correspond to the Physical, Datalink, Network, Transport, Session, Presentation ...

  3. Planetary mnemonic - Wikipedia

    en.wikipedia.org/wiki/Planetary_mnemonic

    A planetary mnemonic refers to a phrase created to remember the planets and dwarf planets of the Solar System, with the order of words corresponding to increasing sidereal periods of the bodies. One simple visual mnemonic is to hold out both hands side-by-side with thumbs in the same direction (typically left-hand facing palm down, and right ...

  4. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The division of the atmosphere into layers mostly by reference to temperature is discussed above. Temperature decreases with altitude starting at sea level, but variations in this trend begin above 11 km, where the temperature stabilizes over a large vertical distance through the rest of the troposphere.

  5. Sun - Wikipedia

    en.wikipedia.org/wiki/Sun

    The heliosphere, the tenuous outermost atmosphere of the Sun, is filled with solar wind plasma and is defined to begin at the distance where the flow of the solar wind becomes superalfvénic—that is, where the flow becomes faster than the speed of Alfvén waves, [87] at approximately 20 solar radii (0.1 AU). Turbulence and dynamic forces in ...

  6. Atmosphere - Wikipedia

    en.wikipedia.org/wiki/Atmosphere

    An atmosphere (from Ancient Greek ἀτμός (atmós) 'vapour, steam' and σφαῖρα (sphaîra) 'sphere') [1] is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low.

  7. List of visual mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_visual_mnemonics

    Knuckle mnemonic. A mnemonic for the number of days in each month uses the knuckles (and the dips between them) of two fists, held together, moving right from the left pinky knuckle. The raised knuckles can be seen as the 31-day months, the dips between them as the 30-day-months (and February). The gap between the hands ignored.

  8. Atmospheric science - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_science

    There is a thin atmosphere on Triton, and a trace of an atmosphere on the Moon. Planetary atmospheres are affected by the varying degrees of energy received from either the Sun or their interiors, leading to the formation of dynamic weather systems such as hurricanes (on Earth), planet-wide dust storms ( on Mars ), an Earth-sized anticyclone on ...

  9. File:Earth's atmosphere.svg - Wikipedia

    en.wikipedia.org/wiki/File:Earth's_atmosphere.svg

    The layers of the atmosphere are drawn to precise scale. Objects within them, such as the weather balloon are not. It is designed to be displaced at its native resolution (430×700px) or higher. It will render incorrectly (things start disappearing) below that.