{"author_name":"ita","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fita.hatenadiary.jp%2Fentry%2F20051106%2Fp1\" title=\" \u30da\u30f3\u30ed\u30fc\u30ba\u56f3 - ita\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","published":"2005-11-06 00:00:00","title":" \u30da\u30f3\u30ed\u30fc\u30ba\u56f3","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/ita/20051109/20051109152602.png","blog_title":"ita\u2019s diary","provider_name":"Hatena Blog","version":"1.0","description":"\u8cea\u91cfm \u306e\u30b7\u30e5\u30ef\u30eb\u30c4\u30b7\u30eb\u30c8\u306e\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306e\u8a08\u91cf\u306f \u3064\u307e\u308a\u4e2d\u5fc3\u304b\u3089\u8ddd\u96e2r\u306e\u5834\u6240\u3067\u306f\u6642\u9593\u304c\u500d\u306b\u4f38\u3073\u3066\u7a7a\u9593\u304c\u500d\u306b\u7e2e\u3080\u3002 \u5149\u306e\u9032\u8def\u306f ds=0 \u3092\u89e3\u304f\u3068\u3002 \u4e21\u8fba\u3092\u7a4d\u5206\u3057\u3066 \u3068\u3059\u308c\u3070\u5149\u306e\u9032\u8def\u306f\u3068\u306a\u308aXY\u9762\u3067\u76f4\u7dda\u3002\u66f4\u306b\u6709\u9650\u306e\u56db\u89d2\u306b\u5168\u90e8\u306e\u6642\u7a7a\u3092\u5165\u308c\u3089\u308c\u308b\u3002 \u3060\u3051\u3067\u56db\u89d2\u5168\u90e8\u4f7f\u3063\u3061\u3083\u3046\u3093\u3067\u3001\u306e\u5185\u5074\u306f\u5225\u306b\u63cf\u3044\u3066\u96a3\u306b\u8cbc\u308a\u4ed8\u3051\u308b\u3002 \u9ed2\u7dda\u306f t=0, R=4M \u3092\u30b9\u30bf\u30fc\u30c8\u3057\u3066\u81ea\u7531\u843d\u4e0b\u3057\u305f\u8ecc\u8de1\u3002\u8ecc\u8de1\u4e0a\u306e\u70b9\u306f\u843d\u3061\u308b\u4eba\u306e\u4e3b\u89b3\u6642\u9593\u3067\u7b49\u5206\u3057\u305f\u9593\u9694\u3002 \u5de6\u4e0a45\u5ea6\u3068\u53f3\u4e0a45\u5ea6\u306e\u7dda\u306e\u9593\u3092\u4e0a\u306b\u5411\u304b\u3063\u3066\u3057\u304b\u9032\u3081\u306a\u3044\u3002R=2M \u3092\u8d8a\u3048\u3066\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306e\u4e2d\u306b\u5165\u308b\u3068\u4e8c\u5ea6\u3068\u51fa\u3089\u308c\u306a\u3044\u3002\u4e2d\u3067\u306f R\u304c\u6e1b\u308b\u65b9\u5411\u306b\u3057\u304b\u9032\u3081\u306a\u3044\u3002\u305d\u306e\u3046\u3061R=0 \u306b\u884c\u3063\u3066\u2026","width":"100%","height":"190","url":"https://ita.hatenadiary.jp/entry/20051106/p1","author_url":"https://blog.hatena.ne.jp/ita/","categories":["\u7406\u7cfb\u30cd\u30bf","SF","J"],"type":"rich","blog_url":"https://ita.hatenadiary.jp/"}