Documentation for
Introduction to Plasma
Closeups of individual frames from video shot with a Sony digital camera.
Original video: 720x480x24 29.970fps
Images and videos are closeups of the original: approximately 6x magnification.
Plasma arc in air (slow-motion 16X) 4:15
Plasma arc underwater (slow-motion 9X) 6:30
PHOTOS
The sounds appear to come from both the expansion and collapse of the plasma events.