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S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew's user avatar
S. McGrew
  • Member for 6 years, 5 months
  • Last seen more than 2 years 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.

3
gold badges
30
silver badges
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bronze badges
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