Measuring Tapes for Circles and Spheres – David Richeson: Division

Measuring Tapes for Circles and Spheres – David Richeson: Division

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…

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

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