[TheForge] Pearls before swine.

[theforge@mailman.qth.net]

In a message dated 1/4/04 1:07:32 AM Central Standard Time, 
theforge-request@mailman.qth.net writes:


> 
> Dear Chris and Dave,
> 
> My attempt at an explanation of the physics of gases was not meant to be a
> criticism of Dave, or his shop, only a simple clarification of a very
> commonly misunderstood phenomenon. Several times a year I have the
> opportunity to demonstrate physics to elementary school students, and they
> understand the difference right away. They go home and explain it to their
> parents.
> 
> The reason that I bothered to comment in the first place was not merely to
> pontificate "a lot of unimpressive BS" but in the hope that the information
> could be understood and utilized, apparently I was mistaken.
> 
> I have visited many metalworking shops where a 6 foot diameter sheet metal
> hood was placed directly over a gas or coal forge, and vented straight up
> through a 10" dia pipe; and even though the forge directly below provided an
> endless supply of "hot air", the hood failed to draw. The owners simply
> couldn't understand why the shop was still smoky. The same goes for
> fireplaces in modern houses.
> 
> The inverse of this is the "side-draft" flue, where smoke and flames from
> the forge turn 90 degrees sideways before they go up the stack. I sincerely
> hope that you never stumble upon one of these in action, it might confuse
> you.
> 
> I almost always regret my postings to this list, and this is case is no
> exception. "Pearls before swine", and all that. I shall pester you no more,
> and please accept my sincere apologies for my rude intrusion into your
> contented ignorance, 'twon't happen again.
> 
> Tom Troszak
> 
 Tom I hope that you realize that most of the people that read these posts 
are not posters themselves but listeners, lurkers if you will.  They listen and 
learn from people such as you.  We are a diverse group of people most who post 
seem to have definite opinions about everything from plane safety to gun 
control.  It is not surprising that someone here always finds fault with whatever 
someone else says here.

Your comments have always been elucidating and i would hate to see you quit 
posting because others comments come across as rude.  Kinda the nature of email?
If you have something to say remember there are a lot more listening then 
complaining.

I have spent the last couple days reflecting on the difference between hot 
air rising and cold air falling.  I never considered the difference,   as a 
result now i am planning on how to best allow cold air in to replace the hot air 
being displaced.   Pvc pipe under the forge seems to be the best way with a 
damper to keep out vermin. 

Ben



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