Here is a bit more on the technical details of this very cool device.  The experimenter is named Jack Scholze and he has plenty of these configurations which he has shared on youtube:

The disk magnet mounted on the shaft is a small homopolar generator. It produces about 0.4 volts at speed between the edge of the disk and the drive shaft. A very weak generator. The 7 point starship coil on the top is the Scot Nelson Daisy 7 geometry that he discovered. It has the largest FEMC and BEMF Bedini type backspikes I have seen yet on any coil, approx 600 volts, for any of the pulse motors I’ve built. This backspike can be used to effectively charge capacitors or batteries, which seem to absorb them well and the charging gets better and faster over many charge and discharge cycles.

We hope you like this video.  What do you think is he onto something?  Could this be used in other types of applications?  Feel free to comment with your ideas.