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Re: [ATM] ATM Digest, Vol 30, Issue 21
hello all,
you can help me:
In Germany we had a mirror testing project. 16 persons were testing one
astigmatic mirror
and the main problem was the support of that astigmatic mirror. The problem
is, how we
cause any kind of astigmatism by the support. You can subtract the induced
astigmatism
if you can calculate the amount of it. And therefore we need a program
similar like Plop
but to calculate the lateral pressure on a mirror. Is there anybody who can
help?
Best regards from wolfgang.rohr@t-online .de
----- Original Message -----
From: <atm-request@atmlist.net>
To: <atm@atmlist.net>
Sent: Friday, June 16, 2006 5:00 AM
Subject: ATM Digest, Vol 30, Issue 21
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> Today's Topics:
>
> 1. Re: The new Equitorial mount, aka, water drive, ball bearing
> , masterpiece (GF)
> 2. ATM Fluid Drive Rate Regulation Ideas (The Alarm Co.)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 15 Jun 2006 22:03:04 -0400
> From: GF <gary@rcn.com>
> Subject: Re: [ATM] The new Equitorial mount, aka, water drive, ball
> bearing , masterpiece
> To: Russell Jocoy <russjocoy@hotmail.com>
> Cc: atm@atmlist.net
> Message-ID: <44921158.9050904@rcn.com>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> Well said.
>
> Gary Fuchs
>
> Russell Jocoy wrote:
>
>> To all on the list, The "creator" has hit the hornet's nest on this
>>list.. The "creator" has not revealed his inventive "polar ball bearing"
>>drive mechanism to anyone. It seems that many of the other principles are
>>one's that have been tried before, and according to most on the list these
>>principles have worked in a substandard outcome. Scientists always go back
>>to" others" proven concepts. Inventors and scientists are always trying
>>to
>>re-invent a better wheel, this is the basis of science. I will admit that
>>laying out a concept that is only a small part of the whole mechanism, and
>>proclaiming a major breakthrough is overkill. We all tend to get excited
>>when we believe we have discovered an answer that no one has answered
>>before
>>(even if it has been answered)
>> Many scientist's and inventor's have gone this route and been
>> imbarassed
>>and shunned. But they were not intentionally plagurizing just repeating
>>the
>>same process unaware that someone else beat them to the idea. Many of the
>>great scientists and inventors "robbed" from old concepts that had no tag,
>>or name , and called it there own. History echoes with this stuff because
>>there is no paper trail.
>> The "creator" was born 200 years too late.. I like his inventive
>> drive
>>(both personal and mechanical) I hope his "polar ball bearings" are as
>>strong.. Russ Jocoy
>>
>>
>>_______________________________________________
>>ATM mailing list http://www.atmlist.net/
>>
>>
>>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 15 Jun 2006 21:35:28 -0500
> From: "The Alarm Co." <tac@i1.net>
> Subject: [ATM] ATM Fluid Drive Rate Regulation Ideas
> To: "ATM List" <atm@atmlist.net>
> Message-ID: <001f01c690ed$8aebdcc0$6401a8c0@i1.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Flash! the rate of flow from the waterbag depends on the height of water
> PLUS the weight of the telescope it's supporting! The change in flow rate
> as the water drains is much, much less than if it were just a bag of
> water.
> Taking it to the logical conclusion, if the fluid were weightless, the
> flow
> rate would be extremely constant, varying only with the weight exerted by
> the scope, which would change as it tracks. Air is undesirable as a fluid
> for many reasons, but what about a liquid less dense than water? Brake
> fluid? Hydraulic fluid? Alcohol? (attractive because of its alternative
> uses). Brake fluid seems a good choice. Its viscosity changes less with
> temperature than motor oil, or probably hydraulic fluid for instance.
> It's
> more viscous than water, and so easier to seal (not true of alcohol!).
>
> * Best regards, Bob
> *
> * * *
>
> * *
>
>
>
>
> ------------------------------
>
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>
> End of ATM Digest, Vol 30, Issue 21
> ***********************************
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