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  2. Big Bang - Wikipedia

    en.wikipedia.org/wiki/Big_Bang

    The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The notion of an expanding universe was first scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derviation of the Friedmann equations.

  3. Collective efficacy - Wikipedia

    en.wikipedia.org/wiki/Collective_efficacy

    Collective efficacy is an alternative to broken windows theory, which argues that efforts to prevent small crimes such as vandalism and public drinking reduce the likelihood of crime. According to broken windows theory, when residents and authorities do not work to prevent small crimes, a sense of disorder develops in the community.

  4. Geocentric model - Wikipedia

    en.wikipedia.org/wiki/Geocentric_model

    A few Orthodox Jewish leaders maintain a geocentric model of the universe based on the aforementioned Biblical verses and an interpretation of Maimonides to the effect that he ruled that the Earth is orbited by the Sun. [57] [58] The Lubavitcher Rebbe also explained that geocentrism is defensible based on the theory of relativity, which ...

  5. Show Me a Hero - Wikipedia

    en.wikipedia.org/wiki/Show_Me_a_Hero

    Yonkers hired city planner Oscar Newman, originator of the defensible space theory, to work with the United States Department of Housing and Urban Development on the housing plan. Newman's theories emphasized the value of small groups of townhouses with yards, rather than multi-story apartment blocks, to provide a sense of ownership for the low ...

  6. Talk:Defensible space (environmental design) - Wikipedia

    en.wikipedia.org/wiki/Talk:Defensible_space...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  7. Rational choice theory (criminology) - Wikipedia

    en.wikipedia.org/wiki/Rational_choice_theory...

    The theory is related to earlier drift theory (David Matza, Delinquency and Drift, 1964) where people use the techniques of neutralization to drift in and out of delinquent behaviour, and systematic crime theory (an aspect of social disorganization theory developed by the Chicago School), where Edwin Sutherland proposed that the failure of families and extended kin groups expands the realm of ...

  8. Category : C-Class Urban studies and planning articles

    en.wikipedia.org/wiki/Category:C-Class_Urban...

    This category contains articles of specific interest to WikiProject Urban studies and planning which have been assigned an assessed value of C-Class for quality rating, following the overall WikiProject article assessment and rating scheme.

  9. Design of experiments - Wikipedia

    en.wikipedia.org/wiki/Design_of_experiments

    A theory of statistical inference was developed by Charles S. Peirce in "Illustrations of the Logic of Science" (1877–1878) [2] and "A Theory of Probable Inference" (1883), [3] two publications that emphasized the importance of randomization-based inference in statistics.