"Newton's apple" meaning in English

{
  "etymology_text": "After the story that English scientist Isaac Newton was inspired to formulate his theory of gravitation by watching the fall of an apple from a tree.",
  "forms": [
    {
      "form": "Newton's apples",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Newton's apple (plural Newton's apples)",
      "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": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Copernican Revolution",
          "orig": "en:Copernican Revolution",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Gravity",
          "orig": "en:Gravity",
          "parents": [
            "Acceleration",
            "Astrophysics",
            "Mechanics",
            "Physics",
            "Astronomy",
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Isaac Newton",
          "orig": "en:Isaac Newton",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1913, Archibald Allan, Space and Personality, Edinburgh: Oliver & Boyd, page 204",
          "text": "The 'perfect fluid' which Lord Kelvin desiderated, is an instance that scientists are on the outlook for something that will serve as a Newton's apple to lead them to the larger truth which urges birth from their instincts of faith.",
          "type": "quotation"
        },
        {
          "ref": "2010, Yuri Tsivian, “The Gesture of Revolution or Misquoting as Device”, in Annie van den Oever, editor, Ostrannenie: On \"Strangeness\" and the Moving Image: The History, Reception, and Relevance of a Concept, Amsterdam: Amsterdam University Press, page 25",
          "text": "Shortly afterwards, in a book called Stupeni. Tekst khudozhnika [Steps. An Artist's Text] published in 1918 in Moscow, Kandinsky wrote about himself as the original discoverer of abstract painting and, as is the custom of discoverers, recounted what precisely became his Newton's apple.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Something that acts as a source of inspiration or triggers an important realization for someone."
      ],
      "id": "en-Newton's_apple-en-noun-4Vjlh-LA",
      "links": [
        [
          "inspiration",
          "inspiration"
        ],
        [
          "realization",
          "realization"
        ]
      ],
      "wikipedia": [
        "Isaac Newton",
        "Isaac Newton#Apple incident"
      ]
    }
  ],
  "word": "Newton's apple"
}

{
  "etymology_text": "After the story that English scientist Isaac Newton was inspired to formulate his theory of gravitation by watching the fall of an apple from a tree.",
  "forms": [
    {
      "form": "Newton's apples",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Newton's apple (plural Newton's apples)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "en:Copernican Revolution",
        "en:Gravity",
        "en:Isaac Newton"
      ],
      "examples": [
        {
          "ref": "1913, Archibald Allan, Space and Personality, Edinburgh: Oliver & Boyd, page 204",
          "text": "The 'perfect fluid' which Lord Kelvin desiderated, is an instance that scientists are on the outlook for something that will serve as a Newton's apple to lead them to the larger truth which urges birth from their instincts of faith.",
          "type": "quotation"
        },
        {
          "ref": "2010, Yuri Tsivian, “The Gesture of Revolution or Misquoting as Device”, in Annie van den Oever, editor, Ostrannenie: On \"Strangeness\" and the Moving Image: The History, Reception, and Relevance of a Concept, Amsterdam: Amsterdam University Press, page 25",
          "text": "Shortly afterwards, in a book called Stupeni. Tekst khudozhnika [Steps. An Artist's Text] published in 1918 in Moscow, Kandinsky wrote about himself as the original discoverer of abstract painting and, as is the custom of discoverers, recounted what precisely became his Newton's apple.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Something that acts as a source of inspiration or triggers an important realization for someone."
      ],
      "links": [
        [
          "inspiration",
          "inspiration"
        ],
        [
          "realization",
          "realization"
        ]
      ],
      "wikipedia": [
        "Isaac Newton",
        "Isaac Newton#Apple incident"
      ]
    }
  ],
  "word": "Newton's apple"
}