This idea was posted on prior to Monday, October 30, 2006.

While visiting my brother's house, many years ago, I discovered an interesting consequence of the arrangement of mirrors at the sink in his bathroom.  He had the normal mirror on the wall behind the sink but he also had another mirror on the side wall, at 90º to the one on the back wall.  If I looked straight into either mirror, then I saw the normal reversed reflection.  If I looked into either of them at a 45º angle, then I saw a non-reversed reflection.  Actually, the non-reversed reflection was the reflection in one mirror of the reflection from the other mirror.  It was just as good a reflection but it was non-reversed.

It occurred to me that it would be possible to make a flat mirror that provided a non-reversed reflection.  Normally, the back, reflective surface of a mirror is flat.  If, on the other hand, the back of the mirror is composed of many small flat surfaces at 90º to one another, then the reflection from that mirror would be a non-reversed reflection.

I'm not completely convinced that the idea will work.  Maybe somebody can test it and let me know.