Geometrical structure consisting of four intersecting hexagonal tubes, created from 148 pencils by members of workshops at the American Institute of Mathematics.
This pencil structure (left) is a variant of the 72 Pencils sculpture created by George W. Hart.
Instructions for creating a geometric structure from 72 pencils.
More from the American Institute of Mathematics at "AIM Mural."
Photos by I. Peterson
is there a way to figure out how many times the pencils intersect?
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