S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew
  • Member for 4 years, 8 months
  • Last seen more than 1 year ago
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About

Mostly retired optics/holography guy with interests in classical field theory, topology, and K-12 science education.

Currently building a sailboat and teaching blacksmithing & knife making.

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