Editing Talk:1255: Columbus
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[[User:Y4cy|Y4cy]] ([[User talk:Y4cy|talk]]) 13:41, 23 August 2013 (UTC) | [[User:Y4cy|Y4cy]] ([[User talk:Y4cy|talk]]) 13:41, 23 August 2013 (UTC) | ||
− | :You suppose that the round earth is imbedded in flat 3-dimensional space. If it | + | :You suppose that the round earth is imbedded in flat 3-dimensional space. If it weren't, you could easily have infinitely deep oceans. Maybe Magellan was way ahead of his time by thinking in non-Euclidean categories. |
:(Explanation for non-mathematicians: Draw a circle – it surely has a finite radius, but if you measure the depth perpendicular to the sheet of paper, you could go infinitely deep. Now apply this to a round sphere and measure perpendicular to the 3D space you put it in.) | :(Explanation for non-mathematicians: Draw a circle – it surely has a finite radius, but if you measure the depth perpendicular to the sheet of paper, you could go infinitely deep. Now apply this to a round sphere and measure perpendicular to the 3D space you put it in.) | ||
:--[[Special:Contributions/188.102.28.80|188.102.28.80]] 09:41, 24 August 2013 (UTC) | :--[[Special:Contributions/188.102.28.80|188.102.28.80]] 09:41, 24 August 2013 (UTC) |