{"author_name":"EASY103","image_url":null,"blog_title":"\u3042\u3057\u305f\u306e\u7d4c\u6e08\u82f1\u8a9e\uff1aAI\u7ffb\u8a33\u3067\u5b66\u3076\u6d77\u5916\u30cb\u30e5\u30fc\u30b9","published":"2026-07-12 16:52:11","description":"English SummaryScientists have finally explained why gold never tarnishes. The reason lies in the unique properties of gold's surface, which prevents it from reacting with air and water. \u65e5\u672c\u8a9e\u8a33\u79d1\u5b66\u8005\u305f\u3061\u306f\u3001\u91d1\u304c\u9306\u3073\u306a\u3044\u7406\u7531\u3092\u89e3\u660e\u3057\u305f\u3002\u91d1\u306e\u8868\u9762\u306b\u306f\u3001\u72ec\u81ea\u306e\u7279\u6027\u304c\u3042\u308a\u3001\u7a7a\u6c17\u3084\u6c34\u3068\u53cd\u5fdc\u3057\u306a\u3044\u3053\u3068\u304c\u9306\u3073\u306a\u3044\u7406\u7531\u3067\u3042\u308b\u3002 \u8a73\u3057\u3044\u89e3\u8aac\u91d1\u306f\u3001\u4ed6\u306e\u91d1\u5c5e\u3068\u6bd4\u3079\u3066\u3082\u975e\u5e38\u306b\u5b89\u5b9a\u3057\u305f\u91d1\u5c5e\u3067\u3042\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u308b\u3002\u91d1\u306f\u9306\u3073\u306a\u3044\u3001\u5909\u8272\u2026","provider_url":"https://hatena.blog","version":"1.0","title":"\u91d1\u304c\u9306\u3073\u306a\u3044\u7406\u7531\u304c\u89e3\u660e\u3055\u308c\u305f","type":"rich","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/EASY103/","url":"https://economic-english.hateblo.jp/entry/2026/07/12/165211","blog_url":"https://economic-english.hateblo.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Feconomic-english.hateblo.jp%2Fentry%2F2026%2F07%2F12%2F165211\" title=\"\u91d1\u304c\u9306\u3073\u306a\u3044\u7406\u7531\u304c\u89e3\u660e\u3055\u308c\u305f - \u3042\u3057\u305f\u306e\u7d4c\u6e08\u82f1\u8a9e\uff1aAI\u7ffb\u8a33\u3067\u5b66\u3076\u6d77\u5916\u30cb\u30e5\u30fc\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"width":"100%","height":"190"}