Klein Bottle Pi Hat
by Judy Parker
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Matt Parker: Stand-up Mathematician and 1 more...
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© Judy Parker
© Matt Parker
© Judy Parker
Klein Bottle Pi Hat
by Judy Parker
Matt Parker (aka StandupMaths) says:
“The Klein Bottle is a topological surface discovered by Mr Klein in 1882. It’s a twisted torus (donut) in the same way that a Möbius Strip is a twisted loop… .
“Klein Bottles have been knitted before (see fantastic examples by Marie-Christine Mahe on knitty.com) but I wanted to raise the mathematical stakes. So I worked with my poor Mum to make a stripy Klein Bottle hat, where each stripe represents a different digit of Pi.
“Please email me any photos of you wearing this hat. If there exists a more nerdy hat anywhere, please do let me know.”
About this pattern
by Judy Parker
overall rating
of
3.8
from
13 votes
clarity rating
of
3.6
from
8 votes
average difficulty from
15 ratings
- First published: December 2010
- Page created: August 8, 2012
- Last updated: April 30, 2015 …
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