德国天文学家弗里德里希*乔治*乔治*赫姆*冯*斯特鲁夫(Friedrich Georg Georillhelm von Struve)于1845年发起的一个国际项目,斯特鲁夫大地测量弧旨在通过测量从挪威的哈默菲斯特到黑海的距离来绘制地球的形状和大小。 在挪威,瑞典和俄罗斯的近3000公里段上放置了大… 閱讀其餘內容
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