X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fconfig%2Fklein.xml;h=8a93c9e0e3ba9b81bfea54cad8ab46886a7d28d6;hb=aa75c7476aeaa84cf3abc192b376a8b03c325213;hp=8849ab35452a50ff8010047425b8b0648f28e858;hpb=6cee540bdbb571485cd5e519f89f389faebd0495;p=xscreensaver
diff --git a/hacks/config/klein.xml b/hacks/config/klein.xml
index 8849ab35..8a93c9e0 100644
--- a/hacks/config/klein.xml
+++ b/hacks/config/klein.xml
@@ -1,26 +1,131 @@
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- <_description>
-This draws a visualization of a Klein bottle or some other interesting
-parametric surfaces. Written by Andrey Mirtchovski.
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+ <_description>
+A Klein bottle is the 4D analog of a moebius strip.
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+You can walk on the surface of the bottle or rotate it in 4D or walk
+on it while it rotates in 4D. Inspired by Thomas Banchoff's book
+"Beyond the Third Dimension: Geometry, Computer Graphics, and Higher
+Dimensions", Scientific American Library, 1990.
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+https://en.wikipedia.org/wiki/Klein_bottle
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+Written by Carsten Steger; 2008.
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