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<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
class=625364314-29012005><FONT =
color=#0000ff> >> </FONT></SPAN>I
would appreciate an engineering analysis considering not only the =
flexibility of
the key, but the flexibility of the hammer shank as well and whether =
there is
really adequate distance remaining between the hammer and the string at =
the
point at which the key bottoms out for any real difference in =
acceleration of
the hammer to occur, if any of you engineers cares to offer one.<SPAN
style="mso-spacerun: yes"> <SPAN =
class=625364314-29012005><FONT
color=#0000ff> </FONT></SPAN></SPAN></SPAN></FONT></DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=navy><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN class=625364314-29012005><FONT =
color=#0000ff>I
think the principle involved is conservation of energy, or conservation =
of
momentum. In depressing the key we are obviously adding kinetic energy =
to the
mass system. That energy cannot simply vanish, it must be conserved. Our =
objective is to transfer as much as possible to the whippen, but =
some of it
will be absorbed in the form of heat. Some of this heat will come =
from the
internal flexure of the key. Some of the heat will come from crushing =
the front
punching. Energy is force acting over distance in time. A "softer" =
punching will
have a longer contact time that it is pushing on the key and the key =
will travel
a greater distance with that force acting on it. This means it will =
absorb a
greater amount of energy, which will in turn reduce the amount of energy =
left
for the rest of the system.<![if =
!supportLineBreakNewLine]><![endif]><![if =
!supportLineBreakNewLine]><![endif]></FONT></SPAN></SPAN></SPAN></FONT></=
DIV>
<DIV><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN class=625364314-29012005>Blessings =
from Indiana
where it is snowing again,</SPAN></SPAN></SPAN></FONT></DIV>
<DIV><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005></SPAN></SPAN></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"><SPAN
class=625364314-29012005>Dean</SPAN></SPAN></SPAN></FONT></DIV></BODY><=
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