No-one was arguing that that was not the case. A spring might have the
mechanical equivalent of reactance, but a damper will most certainly
not - hence the rubbish posted by the OP, where he believes that
dampers store energy. They do not, and therefore cannot have the
mechanical equivalence of a reactance. Therefore, resonance is not
possible with such a system. In the extreme, the OP was reduced to
likening dampers to bicycle pumps, a sure sign of a failure to grasp a
fundamental point (and hence the error of his assertion).

from
Aero Spike

Is this what you are talking about?

"The same analogy applies to springs and to shock absorbers;
the spring stores energy when stretched; the shock-absorber
stores energy when compressed. Both the spring and shock
absorber will return energy at some time and this exhibit reactance!"

I think we have been at cross purposes. The above is nonsense.

Frank

Beanie's bum chum Nedlar wrote:

This guy, being a brave keyboard warrior, likes to call people idiots.
However, when confronted by children he acts like the coward he is.
I append a short article of his when he was posting as 'RVMJ'


On Sat, 28 Feb 2004 14:04:36 +0000, RVMJ 99g wrote:


Having been assaulted by two 'young people' in the garage at the back
of my house, during which (being aware of the issues) I neither
reacted or retaliated, I count myself lucky that they didn't concoct a
story about the reverse being true. There were were no independent
witnesses, and so their uncorroborated word as 'young people' would
have been accepted without question, as is the normal practice.

As they never surfaced before 10:30 on weekend mornings, I made sure
that any outside work I wanted to do, such as car servicing or
gardening, was done before that time, at which point I made myself
scarce. Taking leave and doing jobs during the week wasn't on, as one
couldn't guarantee that they wouldn't bunk off from school.

As they used to congregate in the area of the garages, it meant I
could never use my motorcycle without risking being accosted by them
on my return, as there was no way of seeing if they were present. So
for a year or two, until they discovered the world outside the area
contained people of the opposite gender, I was a prisoner in my own
house. Again, I count myself lucky that they only scratched my car
four times, broke five radio aerials and two door mirrors, rendered
the door-locks inoperative with matchsticks and slashed the tyres
once. Young people need protection, did you say?
Well done! You've mastered the art of cut & paste.
What's next, a black belt in Origami?
--
;-)
73 de Frank Turner-Smith G3VKI - mine's a pint.
http://turner-smith.co.uk

Reg Edwards wrote:

Roy, I'm thinking of occasionally changing 'old wives' to
'charlatans'. It may sometimes better fit the circumstances.
----
Reg.

Oh, boy! Then maybe before long I'll be able to add "RC" to my
impressive and growing list of titles!

Roy Lewallen, W7EL

Frank wrote:

I am not aware of a damper ever being considered a storage device.
Capacitance is equivalent to mass, Inductance is equivalent to a spring, and
resistance equivalent to a damper. Am I missing something?

Nope. But the OP, now posting as 'Polymath', had said "The same
analogy applies to springs and to shock absorbers; the spring stores
energy when stretched; the shock-absorber stores energy when
compressed. Both the spring and shock absorber will return energy at
some time and this exhibit reactance!"

But the shock-absorber stores...nothing, and can return nothing. It
therefore cannot have the mechanical equivalent of reactance, and
cannot therefore be a part of a frequency-determining mechanism. He
had failed to appreciate the property of mass - a rather fundamental
point. That is why I said he was an idiot - a claim I see no reason to
change.

from
Aero Spike

Frank wrote:

Is this what you are talking about?

"The same analogy applies to springs and to shock absorbers;
the spring stores energy when stretched; the shock-absorber
stores energy when compressed. Both the spring and shock
absorber will return energy at some time and this exhibit reactance!"

I think we have been at cross purposes. The above is nonsense.


Exactly! That was the point, repeatedly made by others, at the time of
the original posting.

from
Aero Spike

"Spike" wrote in message
...
Frank wrote:

Is this what you are talking about?

"The same analogy applies to springs and to shock absorbers;
the spring stores energy when stretched; the shock-absorber
stores energy when compressed. Both the spring and shock
absorber will return energy at some time and this exhibit reactance!"

I think we have been at cross purposes. The above is nonsense.


Exactly! That was the point, repeatedly made by others, at the time of
the original posting.

from
Aero Spike

Which is exactly what you said in your original posting. The fact is I
should have read it more carefully.

Regards,

Frank

Beanie's Bum Chum Nedlar wrote:
How many bags do you get through in a month?

What's your problem? Frustrated now Beanie's got a job during the week?
Never mind, I don't suppose it will last long.
--
;-)
73 de Frank Turner-Smith G3VKI - mine's a pint.
http://turner-smith.co.uk

Beanie's Bum Chum Nedlar wrote:
On Mon, 11 Jul 2005 22:07:59 GMT, Frank Turner-Smith G3VKI
[ pass another bag ] wrote:



What's your problem? Frustrated now Beanie's got a job during the week?
Never mind, I don't suppose it will last long.



What's your problem? Run out of bags?
No, I've got plenty. Do you want some?
--
;-)
73 de Frank Turner-Smith G3VKI - mine's a pint.
http://turner-smith.co.uk

On Mon, 11 Jul 2005 09:52:25 -0700, Wes Stewart wrote:

On Sun, 10 Jul 2005 23:46:13 +0100, "Gerard Lynch"
wrote:


[snip]
Guns aren't an issue here. We're not allowed to have them. Nobody much (as
in about 90% of the population) cares. We care about things you folks have
never even heard about instead (fancy an ID card?)

Over here in 'Merica they're called "Social Security Cards." Every
newborn baby is required to have one.

And they say something like "not to be used for identification" right on
the cards. The way things are going, we will probably all need to carry
passports before long.

"Bob Nielsen" wrote in message
. net...
On Mon, 11 Jul 2005 09:52:25 -0700, Wes Stewart wrote:

Over here in 'Merica they're called "Social Security Cards." Every
newborn baby is required to have one.

And they say something like "not to be used for identification" right on
the cards. The way things are going, we will probably all need to carry
passports before long.

Yeah. They say all sorts of things over here too.

Internal passports... nice Tsarist idea, kept up by the KGB.

This must be boring people who haven't killfiled us all who are looking for
a discussion on aerials or electrical engineering (don't worry about being
off topic on uk.radio.amateur - *we* all are) so I'd best QRT on this here
breaker channel.

--
73

Gerry G0RTN
Vanity Page at http://www.gerrylynch.co.uk