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Dicing an Onion, the Mathematically Optimal Way


There is more than one way to dice an onion…

We’ve cut it in half lengthwise, using a sharp knife to reduce the chance of injury and onion-induced crying. Kenji claims that the most uniform pieces can be produced by aiming at a point ~60% of the onion’s radius below the cutting surface. As the layer and cut numbers increase and approach infinity, this ideal radial depth converges to the onion constant of ~55.731%, mentioned above.

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