Arrow In A Stream (jabber) wrote in queries,
Arrow In A Stream

Mirror, mirror on the wall...

You know how, when you look in a mirror and raise your left hand, your reflection appears to raise its right hand? So, why is it that a mirror reverses left and right, but not up and down?
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It will reverse up and down if you put it at the right angle. With the mirror parallel to your body, it reverses left/right, but if you lay it on the ground and raise your hand, the mirror person is reaching in the opposite direction.