Posted in Science Tagged Magic Mirror, mirror, optics Post navigation We’ll admit optics aren’t our strong suit, but we do dig into it occasionally. We wonder if you could cast these out of epoxy. We’ll entertain any speculation other than using a 555 or an Arduino.
#Magic mirror medal how to#
We figure if anyone can figure out how to make these, it is our readers. Even more interesting is that not all mirrors reflect the image on the back, which makes you think the image on the back is just a subterfuge and not necessarily part of the fabrication process. There is some speculation about the thickness of the embossing, but keep in mind that the surface variations are a fraction of a micron. The real mystery, though, is how these parts are made. You need some understanding of optics and calculus to fully understand what’s going on. The reality is that very subtle variations of the surface produce the image. Is it transparent? No, and the video by below explains what’s really going on.
When you shine a point source of light on the mirror, however, the reflection matches what is on the back of the mirror. If you haven’t seen one of these, they are polished metal mirrors with a pattern embossed on the back. One of the Star Trek movies has a McGuffin called “transparent aluminum.” While magic mirrors aren’t really transparent, it appears that way to a casual observer.
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