¡Triángulos redondos!

The video explores the concept of sphericity, highlighting how spheres enclose the largest volume with the smallest surface area. It discusses non-circular shapes of constant width that function as effective bearings, such as the rotor of rolo. The video also examines the geological process of stones becoming rounded and compares roundness with the constant width of certain British coins, which allows them to function smoothly in vending machines.

How do sharp-edged stones relate to the concept of roundness?

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Discuss the design of British coins and their relation to vending machines.

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