unknownpleasures(6x) on Linux
The text d520b27b0ed9, as Debian 9 (Stretch) shipped it.
an animation of the signal from the pulsar PSR B1919+21.
Flags it lists
-
-count -
-delay -
-fps -
-no-fps -
-no-ortho -
-ortho -
-root -
-speed -
-visual -
-window