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  1. en.wikipedia.org › wiki › CatCat - Wikipedia

    The cat ( Felis catus ), commonly referred to as the domestic cat or house cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Recent advances in archaeology and genetics have shown that the domestication of the cat occurred in the Near East around 7500 BC.

  2. The following list of cat breeds includes only domestic cat breeds and domestic and wild hybrids. The list includes established breeds recognized by various cat registries, new and experimental breeds, landraces being established as standardized breeds, distinct domestic populations not being actively developed and lapsed (extinct) breeds.

    • Origin and Motivation
    • Thought Experiment
    • Analysis
    • Interpretations
    • Applications and Tests
    • Extensions
    • Further Reading
    • External Links

    Schrödinger intended his thought experiment as a discussion of the EPR article—named after its authors Einstein, Podolsky, and Rosen—in 1935. The EPR article highlighted the counterintuitive nature of quantum superpositions, in which a quantum system for two particles does not separate: 150 even when the particles are detected far from their last p...

    Schrödinger wrote: Schrödinger developed his famous thought experiment in correspondence with Einstein. He suggested this 'quite ridiculous case' to illustrate his conclusion that the wave function cannot represent reality.: 153 The wave function description of the complete cat system implies that the reality of the cat mixes the living and dead ca...

    In modern terms Schrodinger's hypothetical cat experiment describes the measurement problem: quantum theory describes the cat system as a combination of two possible outcomes but only one outcome is ever observed.: 57 : 1269 The experiment poses the question, "when does a quantum system stop existing as a superposition of states and become one or t...

    Since Schrödinger's time, other interpretations of quantum mechanics have been proposed that give different answers to the questions posed by Schrödinger's cat of how long superpositions last and when (or whether) they collapse.

    The experiment as described is a purely theoretical one, and the machine proposed is not known to have been constructed. However, successful experiments involving similar principles, e.g. superpositions of relatively large (by the standards of quantum physics) objects have been performed.[better source needed] These experiments do not show that a c...

    In August 2020, physicists presented studies involving interpretations of quantum mechanics that are related to the Schrödinger's cat and Wigner's friend paradoxes, resulting in conclusions that challenge seemingly established assumptions about reality.

    Einstein, Albert; Podolsky, Boris; Rosen, Nathan (15 May 1935). "Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?". Physical Review. 47 (10): 777–780. Bibcode:1935PhRv...
    Leggett, Tony (August 2000). "New Life for Schrödinger's Cat" (PDF). Physics World. pp. 23–24. Retrieved 28 February 2020.An article on experiments with "cat state" superpositions in superconductin...
    Trimmer, John D. (1980). "The Present Situation in Quantum Mechanics: A Translation of Schrödinger's "Cat Paradox" Paper". Proceedings of the American Philosophical Society. 124 (5): 323–338. JSTOR...
    Yam, Phillip (October 9, 2012). "Bringing Schrödinger's Cat to Life". Scientific American. Retrieved 28 February 2020. A description of investigations of quantum "cat states" and wave function coll...
  3. en.wikipedia.org › wiki › PenisPenis - Wikipedia

    A penis ( / ˈpiːnɪs /; pl.: penises or penes) is a male sex organ that is used to inseminate female or hermaphrodite animals during copulation. [1] [2] Such organs occur in both vertebrates and invertebrates, but not in all male animals. The term penis applies to many intromittent organs, but not to all.

  4. en.wikipedia.org › wiki › VaginaVagina - Wikipedia

    The vagina allows for copulation and birth. It also channels menstrual flow, which occurs in humans and closely related primates as part of the menstrual cycle . Although research on the vagina is especially lacking for different animals, its location, structure and size are documented as varying among species.

  5. The Cloward–Piven strategy is a political strategy outlined in 1966 by American sociologists and political activists Richard Cloward and Frances Fox Piven.

  6. Charles Richard Dierkop (September 11, 1936 – February 25, 2024) was an American character actor. He is most recognized for his supporting roles in the films Butch Cassidy and the Sundance Kid (1969) and The Sting (1973) and the television series Police Woman (1974-1978).