I will have everyone know that Hillman stole that one from me.
To clarify, "mummy dust" is a generic term used for the secret ingredients
that flux manufacturers add to fluxes to make it work right. Similar to
powdered bats wing and newts nose. You will see it listed on an MSDS by
it's alternative term "Proprietary".
Now I feel obligated to tell the story of the Origin of the Stort and
Snark.
Back when I was in college, and mammoths roamed the earth at the
University of Wisconsin (behold the power of cheese), I was in an advanced
math course - Systems of Linear Differential equations. Which was a
combination of linear algebra and differential equations. Taking the
course with me were my good friends Sue Ross and Morgan Culver. We three
were the only three engineers in a class of 25 students, the rest being
pure math majors. The teacher was a very good one. We were working on a
classic population rise and fall problem involving foxes and rabbits. In
general, as the rabbit population rises so does the fox population.
Cyclical in nature, dynamic with time. All would have been fine, except
for we 3 engineers. We kept interjecting comments like, rabbits don't
behave like that, or why wouldn't the foxes travel to the adjacent county
where there are plenty of rabbits, rather than die, what happens if two
foxes share one large rabbit. Essentially destroying all the underlying
assumptions and boundary conditions. It frustrated the hell out of the
professor. Finally, in a fit of annoyance, he declared that he was
changing the name of the predators to Storts and the name of the prey to
Snarks, and since none of the smart ass engineers in the class know the
characteristics of a Snark or a Stort, we could then proceed with the
problem. Without missing a beat, Morgan said "I know what a Stort is - it
is a heavyset lowland bird, comprised mainly of meat and feathers, which
flies in ever-diminishing circles crying Wango Wango". The teacher just
stared at us for a minute, then, without a word, walked out of the
classroom. Class dismissed.
So Dave was close, but now you know the rest of the story.
Doug Pauls
Rockwell Collins
Genny Gibbard <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
02/27/2009 10:56 AM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
Genny Gibbard <[log in to unmask]>
To
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cc
Subject
Re: [TN] NTC - Weird one - bismuth in overmold
I just about snorted coffee out my nose reading this one. Top marks for
a Friday response!
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: February 27, 2009 10:52 AM
To: [log in to unmask]
Subject: Re: [TN] NTC - Weird one - bismuth in overmold
Hi Ken - ok, in the spirit of Friday, here is the definition of "mummy
dust":
Mummy Dust: noun, derived from old Iowan and Wisconsinian, a slightly
grey powder substance produced by boiling the nests of storts. A stort
is a heavy set low land bird, comprised mainly of meat and feathers,
which flys in ever diminishing circles, crying "Wango, Wango". Storts
belong to the Nauga family.
Dave
Ken Bloomquist <[log in to unmask]> Sent by: TechNet
<[log in to unmask]>
02/27/2009 09:23 AM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to Ken Bloomquist
<[log in to unmask]>
To
[log in to unmask]
cc
Subject
Re: [TN] Weird one - bismuth in overmold
OK Dave, I've been waiting for Friday to ask the question; What is
"mummy
dust"? That is one technical term that I've not heard before. Maybe it's
because I live and work on a small island in Washington State and the
dust
hasn't made it this far ;-)
KennyB
-----Original Message-----
From: David D. Hillman [mailto:[log in to unmask]]
Sent: Thursday, February 26, 2009 9:42 AM
To: [log in to unmask]
Subject: Re: [TN] Weird one - bismuth in overmold
Hi Vlad - Nope, based on the huge amount of testing of products for RoHS
materials, it is amazing on how much "mummy dust" is incorporated into
products for specific reasons.
Dave
[log in to unmask]
02/26/2009 11:37 AM
Please respond to
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