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  2. State shapes - Wikipedia

    en.wikipedia.org/wiki/State_shapes

    Poland is an example of a compact state. [1] A compact state has a minimum frontier to defend, and generally roads and railways are relatively simple to provide. [6] An elongated or attenuated state is much longer in one direction than the other. [2] Norway and Chile are examples of elongated states. [1]

  3. List of states of matter - Wikipedia

    en.wikipedia.org/wiki/List_of_states_of_matter

    Ferromagnetism: A state of matter with spontaneous magnetization. Antiferromagnetism: A state of matter in which the neighboring spin are antiparallel with each other, and there is no net magnetization. Ferrimagnetism: A state in which local moments partially cancel. Altermagnetism: A state with zero net magnetization and spin-split electronic ...

  4. State Plane Coordinate System - Wikipedia

    en.wikipedia.org/wiki/State_Plane_Coordinate_System

    The Seattle metropolitan area in Washington is an example of this. King County, which includes the City of Seattle, uses the "Washington State Plane North" coordinate system, while Pierce County, which includes the City of Tacoma, uses "Washington State Plane South". Thus any regional agency that wants to combine regional data from local ...

  5. Salient (geography) - Wikipedia

    en.wikipedia.org/wiki/Salient_(geography)

    A salient, panhandle, or bootheel is an elongated protrusion of a geopolitical entity, such as a subnational entity or a sovereign state. While similar to a peninsula in shape, a salient is most often not surrounded by water on three sides.

  6. Drumlin - Wikipedia

    en.wikipedia.org/wiki/Drumlin

    Drumlins occur in various shapes and sizes, [6] including symmetrical (about the long axis), spindle, parabolic forms, and transverse asymmetrical forms. Generally, they are elongated, oval-shaped hills, with a long axis parallel to the orientation of ice flow and with an up-ice (stoss) face that is generally steeper than the down-ice (lee) face.

  7. Jahn–Teller effect - Wikipedia

    en.wikipedia.org/wiki/Jahn–Teller_effect

    The result is a pseudo Jahn–Teller effect, for example, of an E state interacting with an A state. This situation is common in JT systems, just as interactions between two nondegenerate electronic states are common for non-JT systems. Examples are excited electronic states of NH 3 + and the benzene radical cation. Here, crossings between the ...

  8. Transition state - Wikipedia

    en.wikipedia.org/wiki/Transition_state

    As an example, the transition state shown below occurs during the S N 2 reaction of bromoethane with a hydroxide anion: The DFT-determined geometry for the transition state of the above reaction. [2] Distances are listed in angstroms. Note the elongated C-Br and C-O bonds, and the trigonal bipyramidal structure.

  9. Linear settlement - Wikipedia

    en.wikipedia.org/wiki/Linear_settlement

    Some communities along the Saint Lawrence River in Quebec, Canada, developed as linear settlements, as is still clearly seen in Champlain. A linear settlement is a (normally small to medium-sized) settlement or group of buildings that is formed in a long line. [1]