So, there is one thing that our environmentalists should do now. Beer
cans must become rectangular, in the name of global warming/energy
saving this should be easy:)


>  Cans stacked diameter to diameter can approach Pi/4 packing
>  ~= 78% but only if the cooled space is an exact multiple of
>  can dimensions in all 3 dimensions.
>


-- 
KPL
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