I think this would lower the "Q" to a very low value, but not increase the
period significantly.
One newbies opinion

PauLC
W1VLF
http://www.rescueelectronics.com/
  -----Original Message-----
  From: psn-l-request@.............. [mailto:psn-l-request@.................
Behalf Of tchannel1@............
  Sent: Monday, August 18, 2008 1:44 PM
  To: psn
  Subject: Pendulum in a fluid?


  Hi All,   Just a thought...Has anyone explored a simple 36"? pendulum, say
having a 2? second period, then containing the pendulum in a fluid.  The
pendulum still should move from side to side, but with a longer period?    I
have no idea, how to do this, or what the result would be.

  I think the result would be similar to an "oil damper"....but an oil
damper does not change the period, does it?

  To ask it in a  different way......Picture the 36" vertical pendulum
swinging in a large tube filled with air,  Now the same pendulum, but with
the tube filled with water.
  Would this change the resulting period?

  Thanks, Ted







I =
think this=20
would lower the "Q" to a very low value, but not increase the period=20
significantly.
One =
newbies=20
opinion
 
PauLC
W1VLF
http://www.rescueelectronics.c=
om/

  
-----Original Message-----
From: =
psn-l-request@.................
  [mailto:psn-l-request@...............On Behalf Of=20
  tchannel1@............
Sent: Monday, August 18, 2008 =
1:44=20
  PM
To: psn
Subject: Pendulum in a=20
  fluid?


  
Hi All,   Just a =
thought...Has anyone=20
  explored a simple 36"? pendulum, say having a 2? second period, then=20
  containing the pendulum in a fluid.  The pendulum still should =
move from=20
  side to side, but with a longer period?    I have no =
idea, how=20
  to do this, or what the result would be.  
  
 
  
I think the result would be =
similar to an=20
  "oil damper"....but an oil damper does not change the period, does=20
  it?
  
 
  
To ask it in a  different=20
  way......Picture the 36" vertical pendulum swinging in a large tube =
filled=20
  with air,  Now the same pendulum, but with the tube filled with=20
  water.
  
Would this change the resulting=20
  period?
  
 
  
Thanks, =
Ted