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Convex and Concave
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| Artist |
M. C. Escher |
| Year |
1955 |
| Type |
lithograph |
| Dimensions |
27.5 cm × 33.5 cm (10.8 in × 13.2 in) |
Convex and Concave is a lithograph print by the Dutch artist M. C. Escher, first printed in March 1955.
It depicts an ornate architectural structure with many stairs, pillars and other shapes. The relative aspects of the objects in the image are distorted in such a way that many of the structure's features can be seen as both convex shapes and concave impressions. This is a very good example of Escher's mastery in creating illusion of "Impossible Architectures". The windows, roads, stairs and other shapes can be perceived as opening out in seemingly impossible ways and positions. Even the image on the flag is of reversible cubes. One can view these features as concave by viewing the image upside-down.
Note that all additional elements and decoration on the left are consistent with a viewpoint from above, while those on the right with a viewpoint from below: hiding half the image makes it very easy to switch between convex and concave.
See also [edit]
Sources [edit]
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 Convex Vs Concave Rule || Kinesiology convex vs concave rule explained || By: Kinesiology Kris The convex vs concave rule explained and demonstrated, In what I think is a fun and easy way to understand it. This is the Convex vs Concave rule for arthrok... |  Biffy Clyro - Convex, Concave Biffy Clyro - Convex, Concave. Track 7 of 12 from Biffy Clyro's 2002 album, Blackened Sky. Music and Picture are the property of Biffy Clyro and Beggars Banq... |  Biffy Clyro - Convex Concave Soundcheck (Radio 104.5 Block Party Philadelphia May 14 2011) Soundcheck for their free gig for Radio 104.5 in Philly -- in the pouring rain!! Not sure they'd be able to play at all, true pros. This is my all time favou... |  Concave and Convex Mirror Ray Diagrams, Chapter 17 Review This video demonstrates and discusses ray diagrams for concave and convex mirrors. Visit https://sites.google.com/site/dcaulfssciencelessons/ for more! |  Concave Mirror, Convex Mirror, and Plane Mirrors (Optics part 3) This video shows focal points and images using lasers. |  Concave and Convex Lenses and Mirrors, Parallel Light Rays Shows what happens to parallel light rays when they reflect off a concave and convex mirrors and what happens when they pass through concave and convex lenses. |  Introduction to Lenses, Convex and Concave Lesson for Physics Part 1 http://www.physicshelp.ca Free simple easy to follow videos all organized on our website. |  Convex and Concave Rule |  ScienceMan Digital Lesson - Ray Diagrams - Convex and Concave Lenses ScienceMan.com provides free digital lessons and technology integration help for teachers and students. In this digital lesson, images formed by convex and c... |  !!APPEAR UPSIDE DOWN IN A MIRROR AND RIGHTSIDE UP IN A SPOON!! (CONCAVE AND CONVEX MIRRORS) SCIENCE APPEAR UPSIDE DOWN IN A MIRROR AND RIGHTSIDE UP IN A SPOON!! (CONCAVE AND CONVEX MIRRORS) SCIENCE EXPERIMENT Crazy Chris is flipping upside down and right ... |
 SPIE Newsroom |
SPIE Newsroom
Fri, 26 Apr 2013 00:01:45 -0700
Metalens with convex and concave functionality. Shuang Zhang, Xianzhong Chen, Lingling Huang, Benfeng Bai, Qiaofeng Tan, Guofan Jin, Holger Mühlenbernd, Thomas Zentgraf, Guixin Li and Cheng-Wei Qiu. A new, dual-polarity lens made of ...
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Omaha World-Herald
Sat, 18 May 2013 22:46:08 -0700
Among the many details visitors might notice: the stark difference of the white travertine marble when compared with other buildings on the UNL campus made from limestone or brick; the play of shadow and light over the building's convex and concave ...
|  Daily Nation |
Daily Nation
Mon, 29 Apr 2013 22:36:30 -0700
... slashes and curves, all angles and lines, and generally the typical Pacific Rim characteristic of overdesign), the side has been infused with a lot of character (inverse relief here, a mix of convex and concave surfaces there), and there is a shelf ...
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Russia Beyond The Headlines
Sat, 27 Apr 2013 03:06:31 -0700
When I started work on the panneau, the first piece of card I cut out immediately suggested the idea of all the other graphics as a convex and concave space.” “For me, time is infinity. I made a study of different calendar systems in different parts of ...
|  This is Kent |
This is Kent
Thu, 09 May 2013 18:40:41 -0700
"This particular part of the town is so convex and concave." But a fear of accidents does not deter Mr Meadows, of Albany House, York Street, from zipping around the town in his mobility scooter – even if he admits his eyesight is not what it was. He ...
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Art Daily
Thu, 02 May 2013 17:51:56 -0700
By casting the most spherical parts of his body, Hawkinson created convex and concave pieces that retain the imperfect texture of skin, including hair, scars, and pimples. In using his own body, Hawkinson extends his reductive process of using ...
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