How come that with the right light you can see clear reflections through glass like it is dublicated to the other side of the glass. Even colors.

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Water makes sense. I guess. But why glass, which purpose is to be transparent for our eyes?

In: Earth Science

Glass is transparent, but it’s also smooth and reflective.

Typically the reflection is faint enough that light from the other side overwhelms it, but if it’s much brighter on one side than the other, the reflections on the bright side can be stronger.