Measuring Tapes for Circles and Spheres – David Richeson: Division

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I'd like to thank Matt Parker for introducing me to diameter tapes (or D-tapes). These are measuring tapes used by foresters to measure the diameters of trees. The forester wraps the measuring tape around a tree as if measuring the circumference, but the scale on the tape is adjusted so that the measurement gives the diameter…

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Measuring Tapes for Circles and Spheres – David Richeson: Division by Zero

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Measuring Tapes for Circles and Spheres – David Richeson: Division by Zero