Does "land area" assume a country is perfectly flat?
Stand-up Maths · 3 则 HN 推荐
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Matt Parker of Stand-up Maths asks whether a country's reported land area accounts for hills and mountains, working through how surface area depends on the resolution of elevation data. It follows up on a question from a viewer and work by researchers who measured it.
HN 推荐的原因： HN recommends it in map projection and coastline threads as a fun look at how measurement choices change area figures.
“Matt Parker from Standup Maths made a great video on exactly this subject” 阅读 HN 讨论 ↗