I was running a bath and noticed that at certain angles the crystal becomes completely reflective like a mirror. I know that it’s got to be to do with water refracting light or somethjng. It’s a first for me, has anyone else noticed this or knows of any other weird behaviour of watches under certain conditions etc?

  • gdv87@alien.topBEnglish
    1·
    1 year ago

    Snell’s law. You are varying the refractive index of the external medium (air vs water), thus varying the critical angle for total internal reflection.