In article <DstuCJ.email@example.com> firstname.lastname@example.org (Philip Kilby) writes: >A little taxonomy: > >Q1: What is the name given to the shape formed by > the intersection of two circles? > (Nothing fancy: circles are same radius, and > separated by more than one radius but less > than two)
Just a common sense, without any dictionary ( so, I can be mistaken ) :
This is a lens
>Q2: What is the name of the solid formed by rotating > this shape about its long axis?