An experiment in using activated charcoal as a carbon source for sparks in small fountains and drivers. It actually works quite well - will not start playing with the mesh size.
Unfortunately when driver number one was igniting driver number two I did not have enough shielding over the connecting fuse and driver number two burnt from both ends while fighting driver number 3 (which had some aluminum in it and a bounce of hot BP at the end).
These drivers are 4" long, 1/2" id, solid core, black powder fuel - with a rammed clay nozzle. Connection between drivers was visco fuse.
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