"Newton's cradle" meaning in English

{
  "etymology_text": "Named after Isaac Newton.",
  "forms": [
    {
      "form": "Newton's cradles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Newton's cradle (plural Newton's cradles)",
      "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": "Energy",
          "orig": "en:Energy",
          "parents": [
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "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": "topical",
          "langcode": "en",
          "name": "Mechanics",
          "orig": "en:Mechanics",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A device that demonstrates conservation of momentum and energy via a series of swinging spheres. When a sphere at one end is lifted and released, the resulting force travels through the line and pushes the opposite sphere upward, repeating the process as it swings back down."
      ],
      "id": "en-Newton's_cradle-en-noun-4NvkUgkK",
      "links": [
        [
          "conservation",
          "conservation"
        ],
        [
          "momentum",
          "momentum"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "swing",
          "swing"
        ],
        [
          "sphere",
          "sphere"
        ]
      ],
      "synonyms": [
        {
          "word": "Executive Ball Clicker"
        },
        {
          "word": "Newton's Cradle"
        }
      ],
      "wikipedia": [
        "Isaac Newton",
        "Newton's cradle"
      ]
    }
  ],
  "word": "Newton's cradle"
}

{
  "etymology_text": "Named after Isaac Newton.",
  "forms": [
    {
      "form": "Newton's cradles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Newton's cradle (plural Newton's cradles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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:Energy",
        "en:Gravity",
        "en:Mechanics"
      ],
      "glosses": [
        "A device that demonstrates conservation of momentum and energy via a series of swinging spheres. When a sphere at one end is lifted and released, the resulting force travels through the line and pushes the opposite sphere upward, repeating the process as it swings back down."
      ],
      "links": [
        [
          "conservation",
          "conservation"
        ],
        [
          "momentum",
          "momentum"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "swing",
          "swing"
        ],
        [
          "sphere",
          "sphere"
        ]
      ],
      "wikipedia": [
        "Isaac Newton",
        "Newton's cradle"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Executive Ball Clicker"
    },
    {
      "word": "Newton's Cradle"
    }
  ],
  "word": "Newton's cradle"
}