A photo showing refraction of light rays: a soda straw sticking out of a glass of water. It looks broken.
User <a href="https://en.wikipedia.org/wiki/User:Bcrowell" class="extiw" title="en:User:Bcrowell">Bcrowell</a> on <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a>
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Bcrowell