O-Day - Cosmic Dave's potentially very important Bagel finding
Bagels without T1 ferromagnetic core, may not have persistent e-field
Cosmic Dave found that a 1,2,3,4 - tor wound on a ferrite core and powered by 30Hz would produce a persistent e-field after power is turned off and disconnected as predicted by Nevessky and Zvirblis. Note, this coil did not produce any fields when unattached. Dave appears to have also shown that this type of ‘bagel’ can produce a persistent e-field that persists in part when the bagel is removed from its original position, with some of the e-field travelling with the disconnected bagel.
The field collapses after a period of time in one case in around an hour. If placed on an anti-static mat, no field persists.
In contrast, testing of a 1,2,3,4 - tor wound on non-ferrous polymer fishing line produced little if any persistent e-field.
This is early data, however, Dave has done several tests with the first ferrous core bagel and a few with the fishing line cored one and the difference is apparent. At this stage, if these findings hold out to further scrutiny, then one might expect bagels to require a ferrous core.
Given what we have seen in VEGA experiments, where it seams that Fe appears in the magnetic core sheaths of exotic vacuum object spheres and toroids at a range of scales, it looks as if Dave has replicated on a macro scale what is observed in nature as a means of enhancing field strength and therefore I believe at this stage that people attempting to build bagels for other experiments, should do so with a ferrous core.