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Also a fun fact; you can make a non-reversing mirror by putting two mirrors perpendicular to each other at 90°. When you look head on into both mirrors where th

by CoryG89 10y ago

Also a fun fact; you can make a non-reversing mirror by putting two mirrors perpendicular to each other at 90°. When you look head on into both mirrors where they meet, you will see your image the same as others see it.

internaut 10y ago
That is cool. Are there other ways to make a non-reversing mirror? I was thinking of car mirrors. I have a mirror trick of my own. You know how there is one way mirrors, when used between two rooms they rely on one room being lighter/darker in order to work. Well if you purchase a special mirror it is possible to make an optical illusion with three rooms in a row involved. Each of the rooms furthest from each other can see into the interior room, but not into each other. This makes the sense of space much larger. I must talk to a magician or illusionist to see what other ways exist to achieve similar effects.
- kgm 10y ago
  A few years ago, a Dr. R. Andrew Hicks of Drexel University designed a non-reversing mirror that is a single sheet of glass. The reflection is slightly distorted, however. News coverage: http://techfragments.com/inventions-non-reverse-mirror/ http://techfragments.com/inventions-non-reverse-mirror/ https://www.newscientist.com/gallery/dn16585-amazing-mirrors https://www.newscientist.com/gallery/dn16585-amazing-mirrors Photo from his website: http://www.math.drexel.edu/~ahicks/images/opticks.jpg http://www.math.drexel.edu/~ahicks/images/opticks.jpg
  - internaut 10y ago
    Very clever! Aside from illusions there are many interesting proposals using mirrors. I think most people don't think you can use mirrors with fibre optics to bounce daylight directly into people's houses for indoor lighting. There is also this cool trick you can do by using something called a 'cold mirror', where the visible spectrum is tapped into for lighting but at the same time the IR portion of the spectrum passes through the cold mirror and onto a solar thermal tank for making hot water. All this, with mirrors!
- vog 10y ago
  > That is cool. Are there other ways to make a non-reversing mirror? I don't know if that counts, but: Get in front of your webcam and watch yourself on the screen. If your laptop screen is too small, note that modern large screens (usually sold as "TV") are larger than typical mirrors. If all you need is a quick hand mirror, just use your smartphone in selfie mode.
  - enigmango 10y ago
    Note that some phones do mirror the front-facing camera view (though actual photos taken are not mirrored) [0]. Both my Nexus phones have done this, so I assume it's a common Android feature. I don't know about iPhones. Regarding webcams: Hangouts also mirrors your camera to you during video calls. [1] [0]: https://www.quora.com/Why-are-selfie-pictures-mirror-images-while-rear-camera-images-are-not https://www.quora.com/Why-are-selfie-pictures-mirror-images-... [1]: https://productforums.google.com/forum/m/#!topic/hangouts/IadQZW8GF48 https://productforums.google.com/forum/m/#!topic/hangouts/Ia...
  - internaut 10y ago
    Doesn't work for my particular application but I'm sure others will find it useful, assuming they don't run into the technological conspiracy to hide reality enigmango discovered ;-)
- seszett 10y ago
  > Each of the rooms furthest from each other can see into the interior room, but not into each other. I'd imagine this works with polarising glass rather than actual mirrors. Regular unpolarised light will go (partially) through polarising glass, but once the light has been polarised it won't pass through a second polarising filter that's at a 90° angle from it. You could try that with two camera polarising filters.
  - internaut 10y ago
    That sounds like useful information, thank you.

by CoryG89 10y ago

internaut 10y ago

That is cool. Are there other ways to make a non-reversing mirror? I was thinking of car mirrors. I have a mirror trick of my own. You know how there is one way mirrors, when used between two rooms they rely on one room being lighter/darker in order to work. Well if you purchase a special mirror it is possible to make an optical illusion with three rooms in a row involved. Each of the rooms furthest from each other can see into the interior room, but not into each other. This makes the sense of space much larger. I must talk to a magician or illusionist to see what other ways exist to achieve similar effects.

kgm 10y ago
A few years ago, a Dr. R. Andrew Hicks of Drexel University designed a non-reversing mirror that is a single sheet of glass. The reflection is slightly distorted, however. News coverage: http://techfragments.com/inventions-non-reverse-mirror/ http://techfragments.com/inventions-non-reverse-mirror/ https://www.newscientist.com/gallery/dn16585-amazing-mirrors https://www.newscientist.com/gallery/dn16585-amazing-mirrors Photo from his website: http://www.math.drexel.edu/~ahicks/images/opticks.jpg http://www.math.drexel.edu/~ahicks/images/opticks.jpg
- internaut 10y ago
  Very clever! Aside from illusions there are many interesting proposals using mirrors. I think most people don't think you can use mirrors with fibre optics to bounce daylight directly into people's houses for indoor lighting. There is also this cool trick you can do by using something called a 'cold mirror', where the visible spectrum is tapped into for lighting but at the same time the IR portion of the spectrum passes through the cold mirror and onto a solar thermal tank for making hot water. All this, with mirrors!
vog 10y ago
> That is cool. Are there other ways to make a non-reversing mirror? I don't know if that counts, but: Get in front of your webcam and watch yourself on the screen. If your laptop screen is too small, note that modern large screens (usually sold as "TV") are larger than typical mirrors. If all you need is a quick hand mirror, just use your smartphone in selfie mode.
- enigmango 10y ago
  Note that some phones do mirror the front-facing camera view (though actual photos taken are not mirrored) [0]. Both my Nexus phones have done this, so I assume it's a common Android feature. I don't know about iPhones. Regarding webcams: Hangouts also mirrors your camera to you during video calls. [1] [0]: https://www.quora.com/Why-are-selfie-pictures-mirror-images-while-rear-camera-images-are-not https://www.quora.com/Why-are-selfie-pictures-mirror-images-... [1]: https://productforums.google.com/forum/m/#!topic/hangouts/IadQZW8GF48 https://productforums.google.com/forum/m/#!topic/hangouts/Ia...
- internaut 10y ago
  Doesn't work for my particular application but I'm sure others will find it useful, assuming they don't run into the technological conspiracy to hide reality enigmango discovered ;-)
seszett 10y ago
> Each of the rooms furthest from each other can see into the interior room, but not into each other. I'd imagine this works with polarising glass rather than actual mirrors. Regular unpolarised light will go (partially) through polarising glass, but once the light has been polarised it won't pass through a second polarising filter that's at a 90° angle from it. You could try that with two camera polarising filters.
- internaut 10y ago
  That sounds like useful information, thank you.