Virtual Ribs, A new crown support method

[Don]

Hi Rick,

So far as I know the only thing that can act as a "shield" for magnetic
flux is a ferrous material of some kind. Is there a "plate" on the back of
them?

As far as the effect on the strings--the inverse square law would be in
effect, so if any one wants they can easily calculate the force on the
strings (if they know the field strength that is), on axis directly above
the magnets. I suspect the two magnets would more or less cancel as well,
seeing as you are using them in oposition to each other if they are both
the same size and gauss rating.


At 08:54 AM 4/13/2005 +0100, you wrote:
>
>Good question Cy.  I am also equally sure that 
>since the back side of these neodyms are rather neutralized in the first 
>place, and are at least 5 cm away from the strings and shielded by both 
>the soundboard and bridge wood, that the effect of the magnets on 
>strings is on the order of the effect the Omega 12 galaxy has on your 
>daily sense for humour :)
>
>That said... one COULD employ magnets to affect purposely string 
>behaviour I suppose.... if one wanted to.  An idea for someone else to 
>look into.
>
>Cheers
>RicB
>
>With respect to the difference in mass loading, what's the difference in =
>weight with all those magnets, wooden sheaths, glue and screws, compared =
>to a conventional soundboard with ribs?
>
>Furthermore, how will the magnets affect the sustain of steel piano =
>wire!?!?!?
>
>
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Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat

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