NAME

       unknownpleasures - an animation of the signal from the pulsar PSR B1919+21.

SYNOPSIS

       unknownpleasures  [-display  host:display.screen]  [-visual  visual]  [-window]  [-root]  [-delay number]
       [-speed percent] [-count integer] [-resolution percent] [-no-ortho] [-fps]

DESCRIPTION

       PSR B1919+21 (AKA CP 1919) was the first pulsar ever discovered:  a  spinning  neutron  star  emitting  a
       periodic  lighthouse-like  beacon.  An  illustration  of  the  signal  received  from it was published in
       Scientific American in 1971, and later in The Cambridge Encyclopedia of Astronomy in 1977, where  it  was
       seen  by  Stephen Morris, the drummer of Joy Division, and was consequently appropriated by Peter Saville
       for the cover of the band's album "Unknown Pleasures".

OPTIONS

       -visual visual
               Specify which visual to use.  Legal values are the name of a  visual  class,  or  the  id  number
               (decimal or hex) of a specific visual.

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

       -delay number
               Per-frame delay, in microseconds.  Default: 30000 (0.03 seconds.).

       -speed number
               Animation speed. 2 for twice as fast, 0.5 for half as fast.

       -count number
               Scanlines (vertical resolution).  Default: 80.

       -count number
               Horizontal Resolution, Default: 100%.

       -ortho | -no-ortho
               Whether to use an orthographic projection.

       -fps | -no-fps
               Whether to show a frames-per-second display at the bottom of the screen.

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to  get  the  name  of  a  resource  file  that  overrides  the  global  resources  stored in the
               RESOURCE_MANAGER property.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 2013 by Jamie Zawinski.  Permission to use, copy, modify, distribute, and sell this  software
       and  its  documentation  for any purpose is hereby granted without fee, provided that the above copyright
       notice appear in all copies and that both that copyright notice and  this  permission  notice  appear  in
       supporting  documentation.   No  representations  are made about the suitability of this software for any
       purpose.  It is provided "as is" without express or implied warranty.

AUTHOR

       Jamie Zawinski.

X Version 11                                   5.36 (10-Oct-2016)                           unknownpleasures(6x)