mtairymd Posted December 27, 2017 Report Share Posted December 27, 2017 I found a picture of this online but couldn't find the instructions on how it was built. With some trial and error, I recreated the illusion. BTW, it's real - not photo-shopped. Can you figure it out? Quote Link to comment Share on other sites More sharing options...
gee-dub Posted December 27, 2017 Report Share Posted December 27, 2017 Optical as well as structural illusion, isn't it? Viewing position being important? Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 1 minute ago, gee-dub said: Optical as well as structural illusion, isn't it? Viewing position being important? You're on to something Quote Link to comment Share on other sites More sharing options...
Chestnut Posted December 27, 2017 Report Share Posted December 27, 2017 Piece on the right is on top of the board and mitered so it looks like it's sitting under the top cross beam The grain on the back vertical piece isn't continuous. 1 Quote Link to comment Share on other sites More sharing options...
gee-dub Posted December 27, 2017 Report Share Posted December 27, 2017 3 minutes ago, mtairymd said: You're on to something Unfair advantage. Dad was an eye-doc. Growing up we were exposed to more than our fair share of optical oddities. Lines, textual, graphics, physical; all sorts of stuff. It is fun to play with how the mind works and how we perceive the world. 1 Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 1 minute ago, Chestnut said: Piece on the right is on top of the board and mitered so it looks like it's sitting under the top cross beam The grain on the back vertical piece isn't continuous. Great eyes! Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 2 minutes ago, gee-dub said: Unfair advantage. Dad was an eye-doc. Growing up we were exposed to more than our fair share of optical oddities. Lines, textual, graphics, physical; all sorts of stuff. It is fun to play with how the mind works and how we perceive the world. Yes it is. There are a few others online that I haven't figured out yet. I expect a couple use photo manipulation to get the final result. Quote Link to comment Share on other sites More sharing options...
Chestnut Posted December 27, 2017 Report Share Posted December 27, 2017 3 minutes ago, gee-dub said: Unfair advantage. Dad was an eye-doc. Growing up we were exposed to more than our fair share of optical oddities. Lines, textual, graphics, physical; all sorts of stuff. It is fun to play with how the mind works and how we perceive the world. the fact that we have a blind spot still amazes me. Also i like how curved lines can really mess with our perception of what is strait. Quote Link to comment Share on other sites More sharing options...
Immortan D Posted December 27, 2017 Report Share Posted December 27, 2017 It's aliens. 1 1 Quote Link to comment Share on other sites More sharing options...
Popular Post wdwerker Posted December 27, 2017 Popular Post Report Share Posted December 27, 2017 If M C Escher was a carpenter....... 3 Quote Link to comment Share on other sites More sharing options...
Chet Posted December 27, 2017 Report Share Posted December 27, 2017 16 minutes ago, wdwerker said: If M C Escher was a carpenter....... You beat me to it Steve. Quote Link to comment Share on other sites More sharing options...
Chet Posted December 27, 2017 Report Share Posted December 27, 2017 1 hour ago, Chestnut said: Also i like how curved lines can really mess with our perception of what is strait. I have had the grain in wood make me second guess my cut accuracy. Quote Link to comment Share on other sites More sharing options...
Chestnut Posted December 27, 2017 Report Share Posted December 27, 2017 2 minutes ago, Chet said: I have had the grain in wood make me second guess my cut accuracy. Oh me too multiple times I've grabbed my veritas strait edge to check a board that looked like a smiley face. Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 55 minutes ago, wdwerker said: If M C Escher was a carpenter....... +1 for the Escher reference Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 Ok, multiple people have figured it out. 2 Quote Link to comment Share on other sites More sharing options...
wdwerker Posted December 27, 2017 Report Share Posted December 27, 2017 One of those would look great somewhere out of reach that could only be seen from the right angle. Just to tease and frustrate whoever notices it. Maybe mounted upside down on a high bookshelf ? Of couse this crowd would probably build it out of walnut or mahogany..... Quote Link to comment Share on other sites More sharing options...
mtairymd Posted December 27, 2017 Author Report Share Posted December 27, 2017 Yeah, it took me a while to get the camera angle correct. There are a few large scale penrose triangles around the world. I assume as part of the exhibit, they tell you where to stand to take pictures. As for materials, this was trial and error approach. With that, only 2x4s were used :). Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.