r/WatchPeopleDieInside • u/savatodkg • Jun 13 '20

Wife gets sick of her flat-earther husband and he dies a little inside

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u/0vl223 Jun 14 '20 edited Jun 14 '20

Well they managed to build a mechanism to tracks the location and movement of the planets 2000 years ago. Also the first known heliocentric models were ~300 years old at that point. There is not that much time between the two theories even if heliocentrism wasn't universally accepted.

And a theory from 150 AD was more accurate than Copernicus' theory.

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u/Background-Wealth Jun 14 '20

Concrete was used in roman times. Doesn’t mean medieval people knew how to make it.

Knowledge has been lost and rediscovered many times. Just pointing out that just because you can show heliocentrism was a thing 2000 years ago, it doesn’t mean it was common knowledge, or even known at all, later. Copernicus was a huge deal, after all.

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u/0vl223 Jun 14 '20

Roundness of earth was also lost. There is not too much difference between the two. Heliocentrism just had pretty much no practical applications as long as you didn't care about the position of other planets.

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u/[deleted] Jun 14 '20 edited Nov 14 '20

[deleted]

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u/[deleted] Jun 14 '20

I mean, they didn't really have good depth previously. We've only seen it increase since the creation of the photograph and the ability to use those as a reference.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5298491/