From: Doug McIlroy <doug@cs.dartmouth.edu>
To: tuhs@tuhs.org
Subject: [TUHS] Space Travel, was New: The Earliest UNIX Code
Date: Fri, 18 Oct 2019 07:52:09 -0400 [thread overview]
Message-ID: <201910181152.x9IBq95P001809@coolidge.cs.Dartmouth.EDU> (raw)
> 10-36-55.pdf user-mode programs: pool game
This game, written by ken, used the Graphic 2. One of its
earliest tests--random starting positions and velocities on
a frictionless table with no collision detection--produced
a mesmerizing result. This was saved in a program called
"weird1", which was carried across to the PDP11.
Weird1 was a spectacular accidental demonstration of structure
in pseudo-random numbers. After several minutes the dots
representing pool balls would evanescently form short local
alignments. Thereafter from time to time ever-larger alignments
would materialize. Finally in a grand climax all the balls
converged to a single point.
It was stunning to watch perfect order emerge from apparent
chaos. One of my fondest hopes is to see weird1 revived.
Doug
next reply other threads:[~2019-10-18 11:52 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 11:52 Doug McIlroy [this message]
2019-10-18 18:36 ` Steffen Nurpmeso
2019-10-18 20:19 ` SPC
2019-10-18 22:04 ` Ken Thompson via TUHS
2019-10-18 23:20 ` Arthur Krewat
2019-10-19 0:57 ` G. Branden Robinson
2019-10-19 1:11 ` Arthur Krewat
2019-10-29 2:18 ` Lawrence Stewart
2019-10-26 15:10 ` Lars Brinkhoff
-- strict thread matches above, loose matches on Subject: below --
2019-10-19 14:40 Doug McIlroy
2019-10-19 18:32 ` Abhinav Rajagopalan
2019-10-19 18:44 ` Abhinav Rajagopalan
2019-10-19 19:19 ` Clem Cole
2019-10-19 19:50 ` Henry Bent
2019-10-19 20:24 ` Arthur Krewat
2019-10-19 13:13 Doug McIlroy
2019-10-17 19:21 [TUHS] New: The Earliest UNIX Code - From the Collection of the Software History Center, Computer History Museum Lyle Bickley
2019-10-17 20:44 ` [TUHS] Space Travel, was New: The Earliest UNIX Code Warren Toomey
2019-10-17 22:39 ` Warner Losh
2019-10-17 22:51 ` Warren Toomey
2019-10-18 5:59 ` Lars Brinkhoff
2019-10-18 9:30 ` SPC
2019-10-18 17:36 ` Nemo
2019-10-18 3:01 ` Warren Toomey
2019-10-18 5:07 ` Lars Brinkhoff
2019-10-18 5:10 ` Lars Brinkhoff
2019-10-18 13:37 ` Warner Losh
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