"Brownian ratchet" meaning in English

See Brownian ratchet in All languages combined, or Wiktionary

Noun

Forms: Brownian ratchets [plural]
Etymology: In reference to Brownian motion. Head templates: {{en-noun}} Brownian ratchet (plural Brownian ratchets)
  1. (physics) An apparent perpetual motion machine, the subject of a thought experiment, that would consist of a tiny paddle wheel and a ratchet, and might seem to be able to extract useful work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics. Wikipedia link: Brownian ratchet Categories (topical): Physics Synonyms: Feynman-Smoluchowski ratchet Related terms: Maxwell's demon
    Sense id: en-Brownian_ratchet-en-noun-COlZuxFV Categories (other): English entries with incorrect language header, Pages with 1 entry, Pages with entries Topics: natural-sciences, physical-sciences, physics

Inflected forms

{
  "etymology_text": "In reference to Brownian motion.",
  "forms": [
    {
      "form": "Brownian ratchets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Brownian ratchet (plural Brownian ratchets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An apparent perpetual motion machine, the subject of a thought experiment, that would consist of a tiny paddle wheel and a ratchet, and might seem to be able to extract useful work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics."
      ],
      "id": "en-Brownian_ratchet-en-noun-COlZuxFV",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "perpetual motion",
          "perpetual motion"
        ],
        [
          "thought experiment",
          "thought experiment"
        ],
        [
          "work",
          "work"
        ],
        [
          "thermal",
          "thermal"
        ],
        [
          "equilibrium",
          "equilibrium"
        ]
      ],
      "raw_glosses": [
        "(physics) An apparent perpetual motion machine, the subject of a thought experiment, that would consist of a tiny paddle wheel and a ratchet, and might seem to be able to extract useful work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics."
      ],
      "related": [
        {
          "word": "Maxwell's demon"
        }
      ],
      "synonyms": [
        {
          "word": "Feynman-Smoluchowski ratchet"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Brownian ratchet"
      ]
    }
  ],
  "word": "Brownian ratchet"
}
{
  "etymology_text": "In reference to Brownian motion.",
  "forms": [
    {
      "form": "Brownian ratchets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Brownian ratchet (plural Brownian ratchets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Maxwell's demon"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Physics"
      ],
      "glosses": [
        "An apparent perpetual motion machine, the subject of a thought experiment, that would consist of a tiny paddle wheel and a ratchet, and might seem to be able to extract useful work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "perpetual motion",
          "perpetual motion"
        ],
        [
          "thought experiment",
          "thought experiment"
        ],
        [
          "work",
          "work"
        ],
        [
          "thermal",
          "thermal"
        ],
        [
          "equilibrium",
          "equilibrium"
        ]
      ],
      "raw_glosses": [
        "(physics) An apparent perpetual motion machine, the subject of a thought experiment, that would consist of a tiny paddle wheel and a ratchet, and might seem to be able to extract useful work from random fluctuations (heat) in a system at thermal equilibrium, in violation of the second law of thermodynamics."
      ],
      "synonyms": [
        {
          "word": "Feynman-Smoluchowski ratchet"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Brownian ratchet"
      ]
    }
  ],
  "word": "Brownian ratchet"
}

Download raw JSONL data for Brownian ratchet meaning in English (1.6kB)


This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-12-21 from the enwiktionary dump dated 2024-12-04 using wiktextract (d8cb2f3 and 4e554ae). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.