"Huygens' principle" meaning in All languages combined

{
  "etymology_text": "From Christiaan Huygens, Dutch physicist.",
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  "lang_code": "en",
  "pos": "name",
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      "glosses": [
        "The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows."
      ],
      "id": "en-Huygens'_principle-en-name-FT3SFdBk",
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          "source",
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        [
          "secondary",
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          "wave",
          "wave"
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        [
          "envelope",
          "envelope"
        ],
        [
          "light",
          "light"
        ],
        [
          "straight line",
          "straight line"
        ],
        [
          "sharp",
          "sharp"
        ],
        [
          "shadow",
          "shadow"
        ]
      ],
      "raw_glosses": [
        "(physics) The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows."
      ],
      "related": [
        {
          "word": "Huygens-Fresnel principle"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Christiaan Huygens",
        "Huygens' principle"
      ]
    }
  ],
  "word": "Huygens' principle"
}

{
  "etymology_text": "From Christiaan Huygens, Dutch physicist.",
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  "lang_code": "en",
  "pos": "name",
  "related": [
    {
      "word": "Huygens-Fresnel principle"
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        "en:Physics"
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      "glosses": [
        "The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows."
      ],
      "links": [
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          "assumption",
          "assumption"
        ],
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          "wavefront"
        ],
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          "source",
          "source"
        ],
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          "secondary",
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        ],
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          "envelope",
          "envelope"
        ],
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          "light",
          "light"
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          "straight line",
          "straight line"
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          "sharp",
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        ],
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          "shadow",
          "shadow"
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      "raw_glosses": [
        "(physics) The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows."
      ],
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        "physics"
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    }
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  "word": "Huygens' principle"
}