This is Josué Tonelli Cueto's talk "What is ... the length of a potato?" at the "What is ...?" seminar. The talk was given on Friday, January 27, 2017, 1:30pm at the BMS Loft at Urania.
ABSTRACT:
It's clear what someone means when E refers to the volume or the area of a potato, but if this same person starts to talk about its length, a sensible doubt about the meaningfulness of this concept arises. In this talk we will see how the length of a potato is a meaningful concept by introducing the so-called intrinsic volumes and reviewing some of their main properties. Note: Title stolen from one article of Schanuel.
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