This is a time-lapse movie of the position of particles from
a Cherenkov shower striking the ground. The horizontal and vertical coordinates are in meters, and each frame of
the movie is a half nanosecond step.
This is a Chernkov shower ray-traced from the ground to its source in the sky.
The axis are in meters. The top graph shows the particles' position at half nanosecond intervals. The bottom
graph shows the sum path the particles trace out in the sky (in half nanosecond intervals).