"Bethe formula" meaning in English

{
  "etymology_text": "Named after Hans Bethe, who found the non-relativistic version in 1930.",
  "forms": [
    {
      "form": "the Bethe formula",
      "tags": [
        "canonical"
      ]
    }
  ],
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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          "orig": "en:Physics",
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      ],
      "glosses": [
        "A formula describing the mean energy loss per distance travelled of swift charged particles traversing matter (or alternatively the stopping power of the material)."
      ],
      "id": "en-Bethe_formula-en-name-c8Hmg~nv",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "mean",
          "mean"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "loss",
          "loss"
        ],
        [
          "distance",
          "distance"
        ],
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          "swift",
          "swift"
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        [
          "charged particle",
          "charged particle"
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        [
          "matter",
          "matter"
        ]
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      "raw_glosses": [
        "(physics) A formula describing the mean energy loss per distance travelled of swift charged particles traversing matter (or alternatively the stopping power of the material)."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Hans Bethe"
      ]
    }
  ],
  "word": "Bethe formula"
}

{
  "etymology_text": "Named after Hans Bethe, who found the non-relativistic version in 1930.",
  "forms": [
    {
      "form": "the Bethe formula",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Bethe formula",
      "name": "en-prop"
    }
  ],
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  "lang_code": "en",
  "pos": "name",
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    {
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      "glosses": [
        "A formula describing the mean energy loss per distance travelled of swift charged particles traversing matter (or alternatively the stopping power of the material)."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "mean",
          "mean"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "loss",
          "loss"
        ],
        [
          "distance",
          "distance"
        ],
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          "swift",
          "swift"
        ],
        [
          "charged particle",
          "charged particle"
        ],
        [
          "matter",
          "matter"
        ]
      ],
      "raw_glosses": [
        "(physics) A formula describing the mean energy loss per distance travelled of swift charged particles traversing matter (or alternatively the stopping power of the material)."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Hans Bethe"
      ]
    }
  ],
  "word": "Bethe formula"
}