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Peter R. McMahon's user avatar
Peter R. McMahon's user avatar
Peter R. McMahon's user avatar
Peter R. McMahon
  • Member for 5 years, 5 months
  • Last seen more than a week ago
  • Wollongong NSW, Australia
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403
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About

Retired electronics technician with an interest in physics, aerodynamics & chemistry.

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3
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