12 thoughts on “Looking through a window

    1. Gladly, Peter!
      There is an object in front of our windowpane.
      This object has small plates of colorless glass on its curved surface.
      Now sunlight falls on this surface. The light is reflected, falling on the borders of the double glass and from there into the eye of the beholder.
      Since the light hits two layers of glass, the reflection appears twice.
      Sure, there is more to it, but I’ll let it go.

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