Experiment showing a normal spark then a plasma enhanced spark. The enhanced spark has water added and then has enough force to lift the marble. What I call "High Voltage" in the video is actually the low voltage (plasma arc). This voltage was supplied by mains outlet power & a transformer isolated voltage doubler circuit 340vdc. Sorry for any confusion.
More plasma plug experiments with a glass marble & various amounts of water. Because of the 16 frame per second frame rate of my camera you are not seeing all of the spark impulse activity. Please be careful if you are replicating, protect your ears, eyes & avoid electric shock at these energy levels!
Vaughn Monroe public domain PSA. Vaughn Monroe was the voice of RCA. Here we see Vaughn enjoying the forest with his family. Watch for the encounter with 'Smokey The Bear'. 1957
Using a different spark plug and a smaller gap to observe the pulse action of plasma & water. The pulse force is so evenly distributed the marble lands over and over without going askew.
In my replication I was able to move the plasma inside the neon. It's a bit hard to see because of the reflection of the UV light on the neon tube. The neon lamp is a 5AH. The voltage for the neon is produced by a relay (back emf) wired as a buzzer. The 390nm UV LED is at the end of a six inch straw used as a light guide.