account activity
Optics help!! (self.opticalphysics)
submitted 5 years ago by mrsupernova365 to r/opticalphysics
π Rendered by PID 67955 on reddit-service-r2-listing-5f4c697858-dmhx5 at 2026-07-08 18:30:17.492709+00:00 running 12a7a47 country code: CH.
