On 8 April 2015 at 00:24, Chris Roper wrote: > > ...I have some "directional" speaker cable for sale too... > > > > Yes, but are they fully de-oxidized? :) > > > > And Platinum Gold Alloy I hope. > They also need to be laid up in the correct manner to ensure optimal packing structure, apparently. And I know there was somethin crystal related, no surprise, in one lot I met. All that said - there can be traces, sometimes quite significant, amongst the snake oils, of useful reality in quite a few fields. Finding them and winnowing them is the trick. ______________ The now long ago "Quad" current dumping amplifier brought on a large ongoing discussion on transient response amongst audiophiles, as I recall. Not being an audiophile I can only stand on the sidelines and look on in wonderment. _______________ I'm (hopefully) about to do some playing with colloidal silver with a specific medical aim in mind. This is an area utterly awash with charlattans, snake oil sellers, the odd over unity pusher and many more. It also seems that CS does actually "work" in specific situations. There are substantial numbers of studies and peer reviewed papers on the subject which, it seems, increasingly come down on the plus side of the ledger. Particle size and even shape seems to matter. I suspected that somebody would have found out that use with nano-titanium-dioxide would be especially effective, and lo, it verily is so, with peer reviewed papers following in support. and, for many years, colloidal silver has been used in fired-clay water-filters / containers to provide disinfection AND residual disinfection of otherwise contaminated water, and good stats are available on efficacy. You know you are in trouble when the proper end product is clear and if you make coloured stuff its bad and you detect the good stuff by shining a LASER beam through the good solution *BUT* that is indeed how "it works, and there are good "scientific" reasons for it. You know you are in trouble when the proper generators have to use constant current and the ones that use constant or unregulated voltage are no good - obvious quackery *BUT* that is indeed how "it works" and there are good "scientific" reasons for it. Interestingly, there were a few published papers in the early post 2000 period which determined that CS was completely ineffective. Since then the large majority of published papers have concluded otherwise. Maybe it gets stronger as we enter the house of .... :-). More on CS anon, perhaps :-) Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .