Index of /utilities/cgi/dynamic-images

      Name                    Last modified      Size  Description
Parent Directory - counter.gif 2013-10-04 09:09 73K interrupted-counter.cgi 2014-03-05 14:59 355 second-dim.cgi 2014-01-16 14:31 254 slow-second-dim.cgi 2014-02-24 15:19 264
The two scripts second-dim.cgi and slow-second-dig.cgi return a navy
PNG image that is one pixel high and as many pixels wide as this
server's system time's seconds field. The slow-* variant takes three
seconds to respond.

The counter.gif image comes from:
It has 16 frames and takes 24 seconds to play.