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Roots of Unity

British Objects of Constant Width

Several British objects of constant width. Image: Evelyn Lamb.

As I wrap up a trip to the UK, I reflect on the many objects of constant width I encountered here. I’ll let Numberphile tell you a little more about objects of constant width. Almost immediately after getting off the plane at Heathrow, I got some breakfast and some change in the form of metal [...]

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