為何奧運金牌不是用 100% 純金製成的？

奧運金牌並非由 100% 純金製成，主要原因如下：

  • 純金過於柔軟：純金 (24K) 質地過於柔軟，容易變形，不適合製成堅固耐用的獎牌。
  • 成本考量：使用純金製成金牌將大幅提高成本，對主辦國財政造成負擔。
  • 歷史傳統：自 1900 年巴黎奧運以來，奧運金牌傳統上由 92.5% 的純銀製成，並鍍上 6 克的純金。
  • 美觀因素：純金表面容易氧化變黑或褪色，鍍金能保持獎牌美觀和光澤。
  • 象徵意義：奧運金牌的成分代表著努力、奉獻和榮耀，而不僅僅是金錢價值。

相關問題：

  • 奧運金牌實際上是由什麼製成的？ 92.5% 純銀，鍍上 6 克純金。
  • 為什麼純金太軟了？ 純金的莫氏硬度低，容易受損或變形。
  • 奧運金牌最早是什麼時候由純金製成的？ 從未由純金製成過。
  • 鍍金對金牌有哪些好處？ 保持美觀、防止氧化變黑。
  • 奧運金牌的成分除了象徵意義外，還有什麼意義？ 也代表著主辦國的財力與技術實力。
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