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A comment on In defense of flat earthers (2020). Parent comment

Re:In defense of flat earthers (2020) by squeaky-clean on Tuesday January 18, 2022 @12:38AM (#29975527)
Yeah I think they mean the latter. Satellite footage could be doctored after all, unless you're launched the satellite.

It's not really that hard to estimate the circumference of the earth and prove that it has to be spherical. But most methods I know of require quite a bit of driving, or friends that are far away and can take a measurement at exactly the same time.

I'm not a flat earther but I do want to do my own measurement of the earth's circumference one day for fun.

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Re:In defense of flat earthers (2020) by Const-me on Tuesday January 18, 2022 @12:55AM (#29975632)
> and prove that it has to be spherical

To be precise, the earth is not spherical. It's unfortunately not even an ellipsoid: I live well above the sea level yet my home is like 20 meters below the surface of the WGS84 reference ellipsoid.

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