Always funny to look at a big glass-fronted building and see how non-planar the average window actually is (from the reflection).
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@cmuratori@rygorous The glass is being distorted by the pins holding it to the frames. Reflection amplifies the distortion difference.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@cmuratori@rygorous Kinda - a Fresnel lens. If you make the ridges close enough together, it can appear flat, but is still a lens. -
@tom_forsyth@cmuratori@rygorous You could have different index of refractions, too
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