On Mon, 14 Apr 2008 16:35:24 EDT, "Chambers" <bdc### [at] yahoocom>
wrote:

>"triple_r" <nomail@nomail> wrote:
>> Isn't that more of a positive* feedback loop, where a perturbation reinforces
>> itself?
>
>Possibly; in the contexts I've seen it used, a negative effect reinforcing
>itself has been referred to as a negative feedback loop.  However, calling it a
>positive feedback loop is, unintuitively enough, logical.

It is easy if you think of the changes. A positive feedback adds to
the change and that is good for a detector. Negative feedback
subtracts from the change which is good for an amplifier. You have
heard socio-babble :)
-- 

Regards
     Stephen

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