Post #2712463
2026-03-01 07:00 UTC
@hcschuetz@mastodon.social
Yes, I can see it.
I can now also see that @divbyzero@mathstodon.xyz understood this, yet triumphantly presented the 3D print as a model to illustrate something he already knew was wrong
🙄
Replies (1)
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@hcschuetz@mastodon.social 2026-03-01 14:47
@sibrosan@mastodon.social Good that we agree on the conic cuts now. But sorry, I can't resist to discuss the words "wrong" and "negligible" a bit. I wouldn't call @divbyzero@mathstodon.xyz's initial statement "wrong". The conic cutting can be seen as a less interesting detail not worth mentioning in that context. (It might even have confused some readers.) But yes, it can be misunderstood easily if one implicitly transfers the planes from Archimedes' statement on 2D surfaces to the 3D shells.