Am 06.05.2016 um 21:13 schrieb Le_Forgeron:
> From discussion in p.general
> 
> So far the inner_radius of the lemon (center of inner circle as red target)
>  is twice the largest radius of the spheres
> 
> Twice, inspired by Moss's egg
> 
> http://mathworld.wolfram.com/MosssEgg.html

Moss' Egg is a pretty poor justification for the "double radius" rule
though, as it /also/ follows the "equatorial tangent" rule.

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