{"id":214682,"date":"2024-11-10T01:55:06","date_gmt":"2024-11-10T01:55:06","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=214682"},"modified":"2024-11-10T01:55:06","modified_gmt":"2024-11-10T01:55:06","slug":"%e5%85%89%e3%81%ae%e9%80%9f%e5%ba%a6%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%81%e3%81%9d%e3%82%8c%e3%81%af%e9%9b%bb%e7%a3%81%e6%b3%a2%e3%81%a8%e3%81%a9%e3%81%86%e9%96%a2%e4%bf%82%e3%81%97%e3%81%a6","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e5%85%89%e3%81%ae%e9%80%9f%e5%ba%a6%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%81%e3%81%9d%e3%82%8c%e3%81%af%e9%9b%bb%e7%a3%81%e6%b3%a2%e3%81%a8%e3%81%a9%e3%81%86%e9%96%a2%e4%bf%82%e3%81%97%e3%81%a6\/","title":{"rendered":"\u5149\u306e\u901f\u5ea6\u3068\u306f\u4f55\u304b\u3001\u305d\u308c\u306f\u96fb\u78c1\u6ce2\u3068\u3069\u3046\u95a2\u4fc2\u3057\u3066\u3044\u308b\u306e\u304b"},"content":{"rendered":"<p class=\"sidekick\">\u5149\u306e\u901f\u5ea6\u3068\u306f\u4f55\u304b\u3001\u305d\u308c\u306f\u96fb\u78c1\u6ce2\u3068\u3069\u3046\u95a2\u4fc2\u3057\u3066\u3044\u308b\u306e\u304b\u3002\u7269\u7406\u5b66\u306e\u57fa\u672c\u3092\u5b66\u3073\u3001\u5149\u306e\u901f\u3055\u3068\u305d\u306e\u96fb\u78c1\u6ce2\u3068\u306e\u95a2\u9023\u6027\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002<\/p>\n<h2>\u5149\u306e\u901f\u5ea6\u3068\u306f\u4f55\u304b\u3001\u305d\u308c\u306f\u96fb\u78c1\u6ce2\u3068\u3069\u3046\u95a2\u4fc2\u3057\u3066\u3044\u308b\u306e\u304b<\/h2>\n<p>\u5149\u306e\u901f\u5ea6 (c) \u306f\u3001\u771f\u7a7a\u4e2d\u3067\u306e\u5149\u306e\u4f1d\u64ad\u901f\u5ea6\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u306e\u901f\u5ea6\u306f\u7d04 299,792,458 \u30e1\u30fc\u30c8\u30eb\u6bce\u79d2 (m\/s) \u3068\u975e\u5e38\u306b\u901f\u304f\u3001\u5b87\u5b99\u306b\u304a\u3044\u3066\u6700\u3082\u9ad8\u901f\u3067\u3042\u308b\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u5149\u306e\u901f\u5ea6\u306f\u305f\u3060\u9ad8\u901f\u3067\u3042\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u96fb\u78c1\u6c17\u5b66\u306e\u57fa\u790e\u7684\u306a\u6982\u5ff5\u3068\u3082\u6df1\u304f\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u5149\u306e\u901f\u5ea6\u3068\u305d\u306e\u91cd\u8981\u6027<\/h2>\n<p>\u5149\u306e\u901f\u5ea6\u306f\u591a\u304f\u306e\u7269\u7406\u6cd5\u5247\u3084\u7406\u8ad6\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5b9a\u6570\u3067\u3059\u3002\u30a8\u30cd\u30eb\u30ae\u30fc\u3068\u8cea\u91cf\u306e\u95a2\u4fc2\u3092\u8868\u3059\u30a2\u30a4\u30f3\u30b7\u30e5\u30bf\u30a4\u30f3\u306e\u6709\u540d\u306a\u65b9\u7a0b\u5f0f <em>E = mc<sup>2<\/sup><\/em> \u3067\u306f\u3001\u5149\u306e\u901f\u5ea6\u304c\u6c7a\u5b9a\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u5149\u306e\u901f\u5ea6\u306f\u56fa\u5b9a\u3055\u308c\u305f\u5024\u3067\u3042\u308b\u305f\u3081\u3001\u6642\u9593\u3084\u7a7a\u9593\u304c\u3069\u306e\u3088\u3046\u306b\u66f2\u304c\u308b\u304b\u3001\u305d\u3057\u3066\u7269\u8cea\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u5982\u4f55\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u306b\u3064\u3044\u3066\u306e\u7406\u8ad6\u3092\u78ba\u7acb\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h2>\u96fb\u78c1\u6ce2\u3068\u5149\u306e\u901f\u5ea6\u306e\u95a2\u4fc2<\/h2>\n<p>\u96fb\u78c1\u6ce2\u3068\u306f\u3001\u96fb\u5834\u3068\u78c1\u5834\u304c\u6642\u9593\u7684\u304a\u3088\u3073\u7a7a\u9593\u7684\u306b\u4ea4\u4e92\u306b\u5909\u5316\u3057\u306a\u304c\u3089\u5e83\u304c\u3063\u3066\u3086\u304f\u6ce2\u306e\u3053\u3068\u3067\u3059\u3002\u96fb\u78c1\u6ce2\u306e\u4ee3\u8868\u7684\u306a\u4f8b\u3068\u3057\u3066\u5149\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u304c\u3001\u96fb\u78c1\u6ce2\u306b\u306f\u4ed6\u306b\u3082\u96fb\u6ce2\u3001\u8d64\u5916\u7dda\u3001\u7d2b\u5916\u7dda\u3001X\u7dda\u3001\u30ac\u30f3\u30de\u7dda\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6ce2\u306f\u3059\u3079\u3066\u771f\u7a7a\u4e2d\u3067\u540c\u3058\u901f\u5ea6\u3001\u3059\u306a\u308f\u3061\u5149\u306e\u901f\u5ea6\u3067\u4f1d\u64ad\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f<\/h2>\n<p>\u5149\u306e\u901f\u5ea6\u3068\u96fb\u78c1\u6ce2\u306e\u95a2\u4fc2\u306f\u30b8\u30a7\u30fc\u30e0\u30ba\u30fb\u30af\u30e9\u30fc\u30af\u30fb\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u96fb\u78c1\u6c17\u5b66\u7406\u8ad6\u306b\u3088\u3063\u3066\u8aac\u660e\u3055\u308c\u307e\u3059\u3002\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u96fb\u5834 (E) \u3068\u78c1\u5834 (B) \u306e\u76f8\u4e92\u4f5c\u7528\u3092\u8a18\u8ff0\u3057\u3001\u305d\u306e\u6ce2\u52d5\u65b9\u7a0b\u5f0f\u306f\u5149\u306e\u901f\u5ea6\u304c\u96fb\u5834\u3068\u78c1\u5834\u306e\u7279\u6027\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u6ce2\u52d5\u65b9\u7a0b\u5f0f\u306e\u89e3\u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><em>\\(c = \\frac{1}{\\sqrt{\\mu_0 \\varepsilon_0}}\\)<\/em><\/li>\n<\/ul>\n<p>\u3053\u3053\u3067\u3001\u03bc<sub>0<\/sub> \u306f\u771f\u7a7a\u306e\u900f\u78c1\u7387\u3001\u03b5<sub>0<\/sub> \u306f\u771f\u7a7a\u306e\u8a98\u96fb\u7387\u3067\u3059\u3002\u3053\u306e\u5f0f\u304b\u3089\u3001\u5149\u306e\u901f\u5ea6\u304c\u7269\u8cea\u306e\u7269\u7406\u7684\u7279\u6027\u306b\u7531\u6765\u3059\u308b\u3053\u3068\u304c\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u5149\u306e\u901f\u5ea6\u306f\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u30b3\u30f3\u30bb\u30d7\u30c8\u3067\u3042\u308a\u3001\u96fb\u78c1\u6ce2\u306e\u57fa\u790e\u7684\u306a\u6027\u8cea\u306e\u4e00\u3064\u3067\u3059\u3002\u5149\u306f\u96fb\u78c1\u6ce2\u306e\u4e00\u5f62\u614b\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u306e\u901f\u5ea6\u306f\u96fb\u5834\u3068\u78c1\u5834\u306e\u7279\u6027\u306b\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u69d8\u3005\u306a\u5fdc\u7528\u306b\u304a\u3044\u3066\u96fb\u78c1\u6ce2\u306e\u6319\u52d5\u3092\u4e88\u6e2c\u3057\u3001\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5149\u306e\u901f\u5ea6\u3068\u306f\u4f55\u304b\u3001\u305d\u308c\u306f\u96fb\u78c1\u6ce2\u3068\u3069\u3046\u95a2\u4fc2\u3057\u3066\u3044\u308b\u306e\u304b\u3002\u7269\u7406\u5b66\u306e\u57fa\u672c\u3092\u5b66\u3073\u3001\u5149\u306e\u901f\u3055\u3068\u305d\u306e\u96fb\u78c1\u6ce2\u3068\u306e\u95a2\u9023\u6027\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[102],"tags":[],"class_list":["post-214682","post","type-post","status-publish","format-standard","hentry","category-102","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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