A visit to the Alhambra led this 20th c. Dutch artist to optical oddities like water that flows up as well as down
[DOC] [TLE] Oscar Reutersvard | Escher  Tessellation  Optical illusions ... [PAR] Escher M Optical Illusion Art, I like this image because of the illusion of how the ... 
of Dutch artist MC Escher and Swedish Oscar Reutersvard who designed these 
ads for ... Geometric perspective - from a rather obscure 16th century anonymous 
..... shows the development of the artist as well as the development of the 'op art'... [DOC] [TLE] http://www.wnyc.org/story/science-behind-nyc-2050/ 2014-10-24T12 ... [PAR] To see more, visit <a href="http://www.npr.org/">http://www.npr.org/</a>.