Re: [Vo]:A though experiment and discussion that should be important in my view

[Robin]

In reply to  Stefan Israelsson Tampe's message of Mon, 1 May 2023 17:52:27 
+0200:
Hi Stefan,

Though I find it difficult to visualize, I think that if you allow the major 
radius of a toroid to shrink to zero, you
end up with a sphere.
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