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<DIV><SPAN class=939133818-22062003><FONT face=Arial color=#0000ff =
size=2>But
this is not the intention to lighten the parts, only to add a secondary =
capstan.
What I suspect is that the usual DW/UW measurements are not saying =
enough
in that case.</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=939133818-22062003><FONT face=Arial color=#0000ff =
size=2>These
new magnets look amazing, I did some tests with strong magnets a few =
years ago,
and indeed the repelling or attracting force they have can be way more =
than any
of us suspect actually.</FONT></SPAN></DIV>
<DIV><SPAN class=939133818-22062003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=939133818-22062003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<P><FONT size=2>Isaac OLEG<BR><BR>Entretien et réparation de
pianos.<BR><BR>PianoTech<BR>17 rue de Choisy<BR>94400 VITRY sur
SEINE<BR>FRANCE<BR>tel : 033 01 47 18 06 98<BR>fax : 033 01 47 18 06 =
90<BR>cell:
06 60 42 58 77 </FONT></P>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Message d'origine-----<BR><B>De :</B>
pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]<B>De la =
part
de</B> David M. Porritt<BR><B>Envoyé :</B> dimanche 22 =
juin 2003
19:15<BR><B>À :</B> =
pianotech@ptg.org<BR><B>Objet :</B> Re: Virtual
Capstan<BR><BR></FONT></DIV>
<DIV>Bob:</DIV>
<DIV> </DIV>
<DIV>Isn't this like the man who wouldn't set his suitcase down =
because the
elevator already had a lot of weight on it?</DIV>
<DIV> </DIV>
<DIV>dave<BR><FONT face=Arial size=2>*********** REPLY SEPARATOR
***********<BR><BR>On 6/21/2003 at 11:54 PM BobDavis88@aol.com
wrote:</FONT></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px =
solid"><FONT
face=arial,helvetica><FONT lang=0 face=Arial size=2
FAMILY="SANSSERIF">Imagine holding a 10-lb. sack of sugar. You =
feel it as
ten pounds. Now attach a powerful magnet to the bottom of the sack, =
and a
powerful repelling magnet in your hand. The magnets might not touch, =
but is
the sugar lighter? No. It might even float a few inches in the air, =
but you
still feel ten pounds of weight in your hand, the same as if it were =
sitting
on top of a coil spring which you were holding.<BR><BR>This is =
because the
magnets are part of the lever system. In order to actually remove =
weight
from the system, they have to be external to it. This is true as =
well of
springs. Wippen assist springs are external to the system. =
Their force
acts against the support flange, and in turn upon the [theoretically =
rigid]
wippen mount rail. In order for a pair of magnets to store potential =
energy
in the deformation of the magnetic field, one of them must be =
mounted
outside the moving part of the system; i. e., on the action =
frame.<BR><BR>I
think Richard should re-do his measurements.<BR><BR>Bob =
D</FONT><FONT size=2
Arial></BLOCKQUOTE>**************** END MESSAGE FROM =
BobDavis88@aol.com
*********************</FONT> </FONT><PRE>_____________________________
David M. Porritt
dporritt@mail.smu.edu
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
_____________________________</PRE></BLOCKQUOTE></BODY></HTML>