7 ms·
Double-mirror illusion
- n3storm 3y agoI clicked with the illusion to see and illusion. Now this is a double disillusion.
- fredre338 3y agoOn the top right, click on "Figures". I almost had the same reaction.
- akovaski 3y agoAlso, if you're on mobile, switch to the "Desktop site" mode of your browser. I wasn't able to see the figures without setting this.
- deleted 3y ago[deleted]
- kordlessagain 3y agoThe page on mobile makes me think this an allusion.
- ahazred8ta 3y agoAlluding to an elated Aleutian elision?
- weird_user 3y agoBetter URL: https://journalofillusion.net/index.php/joi/article/view/9839/16405 https://journalofillusion.net/index.php/joi/article/view/983...
- toufka 3y agoand youtube video of the 'reveal': https://www.youtube.com/watch?v=n--zawliqvA https://www.youtube.com/watch?v=n--zawliqvA
- throwaway092323 3y agoThis feels like a J-class SCP
- hoherd 3y agoThat is awesome. I can't wait to see the STL files people make so we can all print them up! Meanwhile, here is a single mirror illusion STL file and a video showing off how similar illusions work https://www.thingiverse.com/thing:1970522 https://www.thingiverse.com/thing:1970522 You can play with the STL in 3D and get a bit of an idea of how it works.
- weird_user 3y agoI think you misunderstood this. This is not an illusion of objects from different angles, but an unintuitive transformation of geometry.
- MattRix 3y agoThey didn’t misunderstand. If you look at the images included in the paper (this link has them inline: https://journalofillusion.net/index.php/joi/article/view/9839/16405 https://journalofillusion.net/index.php/joi/article/view/983...) you can see that it is an illusion that can be created with 3D printed objects.
- jameshart 3y agoThe linked STL is a different Kokichi Sugihara illusion - by the same creator as this new class of illusions, and part of a body of work in this field that this appears to be a continuation of. https://en.wikipedia.org/wiki/Kokichi_Sugihara https://en.wikipedia.org/wiki/Kokichi_Sugihara
- codeflo 3y agoBut it is. Those are objects that are mirror symmetric, and the apparent direction they're facing depends on viewing angle, creating the illusion that they haven't actually been mirrored.
- codeflo 3y agoFor anyone who's confused about where to find the images: Click "Figures" in the sidebar on the right. For anyone who's confused about how this works: The objects aren't what they appear to be from any angle. In fact, they're weird mirror symmetric objects that bend backwards in ways you wouldn't expect. It's our shape recognition that makes them look flatter than they are. This also makes them look like asymmetric objects that are facing a certain direction depending on the viewing angle, and this is the actual illusion. It's sad that we don't get a 360 degree view, or even a couple of rotations of one of these, because that would make it obvious that the object goes from "proper shape" to "unrecognizable shape" to "flipped shape" depending on angle. Anyway, when viewed in the mirror from certain angles, first of all the object doesn't change (because it's mirror symmetric). But because you view the mirror image from a different angle, it looks as if it's facing the other direction.
- ImHereToVote 3y agoWhat sidebar? I don't see a sidebar. When I click the figures the site just hijacks my browser history. I think it's about time companies hire the mentally challenged to be front-end devs. I commend the site for breaking new ground in equity.
- thih9 3y agoThis page presents Sugihara’s earlier work and provides 360 degree view: https://www.sciencebuddies.org/science-fair-projects/project-ideas/3D-Printing_p003/3D-printing/3d-printed-optical-illusion https://www.sciencebuddies.org/science-fair-projects/project...
- PBnFlash 3y agoThis seems like a version of the ambiguous cylinder illusion https://youtu.be/yupxceBjDa0 https://youtu.be/yupxceBjDa0
- pests 3y agoI am illusioned right now. Are these special objects? Which figures in the article are thoe being displayed in? To me, each example basically "works" if you pretend its not a mirror corner but just a solid mirror at an angle. I'm guessing this is not the intent though?
- matsemann 3y agoI've implemented some of Sugihara's work earlier. Downloadable files for 3d printing and examples I've shared here: https://github.com/Matsemann/impossible-objects https://github.com/Matsemann/impossible-objects
- dmitrybrant 3y agoPlease, for the love of god, stop with the custom scroll bars, and on the wrong side of the viewport, no less!
- kulahan 3y agoYeah, this might be one of the worst websites I've seen. This is really unenjoyable to navigate.
- BLKNSLVR 3y agoIs it intentional for some form of irony?
- dredmorbius 3y agoThe rationalisation appears to be that there are two viewports, one left, one (when expanding sidebar items) right. The left-hand scrollbar controls and reports on the left-hand viewport. The right-hand scrollbar the right-hand viewport. More conventional organisation (and less confusing, possibly) would be to retain the scrollbars to the right of the corresponding viewport. Note that left-handed scrollbars are occasionally used elsewhere, as in the X11 Athena Widgets (Xaw) set: <https://en.wikipedia.org/wiki/X_Athena_Widgets https://en.wikipedia.org/wiki/X_Athena_Widgets>
- mynameisnoone 3y agoAccessibility would be too accessible. For extra fun, make the scrolls bars reversed and inverted axises. After all, it's not like there are disabled people who use assistive devices need simpler, properly-designed websites. Also, it's not GDPR compliant and demands acceptance of cookies.
- lamerose 3y agoFor a better reading experience, try the pdf: https://journalofillusion.net/index.php/joi/article/view/9839/16408 https://journalofillusion.net/index.php/joi/article/view/983...
- danjc 3y ago
- SamBam 3y agoThe apparent failure to mirror "correctly" left and right in this illusion reminds me of a great interview question I heard: why does a mirror reverse things left and right, but not flip them top and bottom? It can be fun to watch people scratch their head over it.
- yencabulator 3y agoEasy enough for anyone with eyes to see the obvious explanation.
- joemi 3y agoAre you implying _two_ eyes? Because if you think that's the reason, just try closing one eye and looking into a mirror and you'll see that nothing's changed. (Also, as an exception to your statement, I have eyes, and I wasn't able to grasp why it happens until I watched a video about it.)
- syncsynchalt 3y agoI'm afraid Feynman's already spoiled the answer for me. N zveebe qbrfa'g syvc yrsg gb evtug, vg npghnyyl syvcf sebag (pybfrfg gb zveebe) gb onpx.
- jzl 3y agoThe interviewer took it from Feynman: https://www.youtube.com/watch?v=6tuxLY94LXw https://www.youtube.com/watch?v=6tuxLY94LXw
- stevage 3y agoOn mobile, not only did I not get to see the images, I couldn't even leave the site by pressing back. On both chrome and FF on Android.
- sfink 3y agoAt least for FF on Android, long press the back button to bring up a history list.
- albert_e 3y agoYep. Very badly designed / tested UI. Why can't most websites stick to the basics. Sigh! I can't imagine what is so unique in presenting this article or this site's content that it requires so much of custom non-standard trickery.
- smallerfish 3y ago"Typesetting" loading prompt, and yet they break pgup/pgdn.
- urbandw311er 3y agoWhen so many of the comments begin “for anyone confused” it’s a good sign that you need to go back and redesign your web page…