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An important contribution from a member of 'thunderbolts forum' comes from the efforts of plasmatic.... with an ionic air purifier experiment. Those experiments have shown the patterns, in dust, formed by electric discharge and these are in deeper material than the CRT features.




Image credit: James St.Pe of Thunderbolts forum (Plasmatic MnemoHistory)

A tight column of spiralling material occurs during electric discharge experiment

A tight column of spiralling material occurs during electric discharge experiment

To more discharge images of spiders

The next image shows the result of a dark-discharge (no arc) from a laterally-stationary probe(my finger) lowered toward a plastic lid, containing sifted and strained dirt, on the monitor (powered on for this phase). I could feel strong air movement as the material was removed, note that the centers were not disturbed in either feature. The small one was made second as charge equalibrium was occurring.

Link to Backyard Experimenter

The additional features were made with the power off.

These next images are from the pass-over monitor experiment

speed-poster07

The crater-like features and the negative-spiders are two ends of the same discharge.

Link to Discharge pattern album

There are interior features in these crater-like circles which may give us a clue to dendritic ridge formation.

Martian Spiders on a CRT



See 07 Poster Presentation

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