Re: Remedial Mechanical Engineering


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Posted by Chuck Tribolet on August 21, 2002 at 18:24:22:

In Reply to: remedial thermodynamics posted by TDI_2 on August 21, 2002 at 14:31:01:

Karl, my father was a Naval Reserve officer and
midlevel manager (non-academic) for the University
of Arizona. My mom was a substitute teacher.
I have three brothers. Not exactly a rich kid.
Me: Scholarship student. Worked part time during
the school year, and worked as a software nerd
during the summer and Christmas vacation.

I didn't sleep through physics, it was too damn
much fun.

It's a free country, and you are entitled to root
for the team of your choice, however: Oski bites!


Once again: if cooling and rewarming caused joints
to loosen, you'd have hot water joints in your
apartment coming loose monthly.

Also, the regulator in question was carried in the
passenger compartment. No major temperature
changes.

Also, if this were really a problem, it would be
happening all the time to folks flying to the
tropics, and in Monterey.

Also: that jet lost its roof in Hawaii because of
pressure cycling, not thermal cycling. It was
fairly high hours, and all really short-haul
interisland service. VERY high number of pressure
cycles.

Also, expansion and contraction problems are
mechanical engineering, not thermodynamics.

Finally, the reg had just been serviced. When you
hear hoofbeats in Montana, think horses, not
zebras.


Chuck



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