Physicists Create the Perfect Foam

No, not from a pint of Guinness - though the perfect foam does hail from Trinity College in Dublin, Ireland:

‘Perfect’ here means the lowest-energy configuration of packed bubbles of equal size. This is a compromise between the surface area of the bubbles and the stability of the many interlocking faces of the polyhedral bubbles in the foam.

Read all about it over at Nature's newsblog: Link

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