Looking at the image, at first I thought this was about those mirrors designed with computer modelling to reflect an image without reversing left to right, so for example, you could hold a book up to it and read it normally.
Normal mirrors reflect light at an angle from the surface normal of the mirror equal to the incident angle. This *can* be 90 degrees, but it's a relatively rare occurrence.
@mikeness: My narcissism could not get any bigger. Local weather stations often erroneously report a high pressure system forming when it's really just my enormous ego passing through town.
07/20/09
07/18/09
It's a minor point, but...
07/18/09
07/18/09
07/18/09
07/18/09
07/18/09