1 <?xml version="1.0" encoding="ISO-8859-1"?>
3 <screensaver name="penrose" _label="Penrose">
7 <number id="speed" type="slider" arg="-delay %"
8 _label="Speed" _low-label="Slow" _high-label="Fast"
9 low="0" high="20000" default="10000"
12 <number id="speed" type="slider" arg="-redoDelay %"
13 _label="Duration" _low-label="1 Second" _high-label="30 Seconds"
14 low="1" high="30" default="3"/>
16 <number id="ncolors" type="slider" arg="-ncolors %"
17 _label="Number of Colors" _low-label="Two" _high-label="Many"
18 low="1" high="255" default="64"/>
20 <number id="size" type="spinbutton" arg="-size %"
21 _label="Size" low="0" high="100" default="40"/>
23 <boolean id="ammann" _label="Draw Ammann Lines" arg-set="-ammann"/>
26 Draws quasiperiodic tilings; think of the implications on modern
27 formica technology. Written by Timo Korvola.
29 In April 1997, Sir Roger Penrose, a British math professor who has
30 worked with Stephen Hawking on such topics as relativity, black
31 holes, and whether time has a beginning, filed a
32 copyright-infringement lawsuit against the Kimberly-Clark
33 Corporation, which Penrose said copied a pattern he created (a
34 pattern demonstrating that ``a nonrepeating pattern could exist in
35 nature'') for its Kleenex quilted toilet paper. Penrose said he
36 doesn't like litigation but, ``When it comes to the population of
37 Great Britain being invited by a multinational to wipe their bottoms
38 on what appears to be the work of a Knight of the Realm, then a last
39 stand must be taken.''
41 As reported by News of the Weird #491, 4-jul-1997.