http://www.pylons.org/feature/feature4.shtml

http://www.pylons.org/feature/feature3.shtml

Kal Mansur
http://kalmansur.com/
via pytr75.blogspot.com

Naum Gabo

http://rosswolfe.files.wordpress.com/2015/02/naum-gabo-translucent-variation-on-a-spheric-theme-1937-2275-inches-high.jpg
http://www.jmberlin.de/berlin-transit/bilder/orte/gabo_21_2_2.jpg

http://images.qvc.com/is/image/u2/8/36/800536.001?$ukextralarge$