Re: Re[6]: [ATM] Use of bearings in (static) mirror cells

["Vladimir Galogaza" <vladimir.galogaza@zg.htnet.hr>]

Matt,

>I would appreciate an answer that refers to physics rather
> than to one's own person or subjective attempts, feelings etc.

Here is one

http://hyperphysics.phy-astr.gsu.edu/hbase/frict3.html#vel

Part of the standard model of surface friction is the assumption that the
frictional resistance force between two surfaces is independent of the
velocity of relative movement. While this is approximately true for a wide
range of low speeds, as the speed increases and air friction is encountered,
it is found that the friction not only depends on the speed, but upon the
square and sometimes higher powers of the speed. If there are fluid
lubricants involved, then viscous resistance is encountered, and it is speed
dependent. Like the other standard assumptions, exceptions are easy to find,
but the assumption is nevertheless useful for modeling a wide variety of
circumstances where two solid materials move relative to each other.

Matt, I admit that mirror cell has little to do with this but as a matter of
fact
heated discussion started with question "What is stiction" and was fueled
with Don's
answer to this question and  criticism or disagreement with his definition.

But whatever degree of misunderstanding or wrong thinking was involved
high tones and personal hard feelings are not justified in my opinion.
Transferring  differences of opinion or luck of knowledge in religious war
is silly
and under the level of the list.

Vladimir.







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