假設大地為橢圓球形，長半徑比短半徑要長...
2 years ago
89
這影片主要是回答我大女兒馨逸關於大地形狀的相關問題。先假設大地為橢圓球形，長半徑比短半徑要長，赤道上的直徑是南北極直徑的1.0033倍，你用肉眼目視還是感覺它是個球形。
這不是目地，而是為以後透視學上的大地成像來鋪陳。
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