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sm's wedding present for Doug Shaw (projective plane)

Title: Doug Shaw's Wedding Present
Artist and Designer: sarah-marie belcastro
Materials: Handspun Wool
Technique: Knitting, seed stitch

Artist's Description: The projective plane is a closed surface with no inside or outside. It cannot be realized in three-dimensional space without either having a self-intersection or a boundary. This particular projective plane was produced by creating a Mbius strip and then contracting its boundary as much as physically possible. This purple projective plane has three blue Mbius bands: one light-blue Mbius band is on the boundary and one is along the path furthest from the boundary; the dark-blue Mbius band is halfway between the two light-blue bands.