This video is full of experiments run by Peter Lindemann and Eric Dollard. One of these experiments is based on a regular popular plasma ball, but generating confined shapes that resemble stars and galaxies in a burnt out bulb. Other experiments include dielectric field demonstrations, the N-machine, music in sparks, and branch structures cut into wood.
At 1:44:00 you will find the display of star or galaxy shapes formed inside a bulb.
1:26:30 is the branch structure burned into wood and music from sparks.
47:30 the beginning of the N-machine segment.
The very beginning explains dielectricity and magnetism.