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October 1998

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Subject:
From:
Matthew Park <[log in to unmask]>
Reply To:
DesignerCouncil E-Mail Forum.
Date:
Thu, 8 Oct 1998 11:32:35 -0700
Content-Type:
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Think this way,

Lay down a 5ft plumber's copper tube on a table and fill the
tube with steel balls from one end to other.  Now get a ball and
push it in from one end of the tube.  A ball from the other end
would fall off  as soon as you insert a ball from the one end. Now
you do the same with a 10ft copper tube.   The time it takes (if
there is any) to fall off would be same for 5ft and 10ft tubes   Next
time get a lock that you can lock your door with a key from
outside.

Matthew
NII

>>> Lou <[log in to unmask]> October 8, 1998  11:01 am
>>>
No..Electrons make no distinction from what they jump from
 but allways keep a spare key under the mat,
that way you'll keep your boyfriend. hehehe
Lou

Louis Dallara
PCB Design Engrg
"All great truths begin as blasphemies" - George Bernard Shaw
http://www.waterw.com/~ldallara

On Thu, 8 Oct 1998, JoAnn Amerson wrote:

> Last night I locked myself out of my apartment and while
waiting for my
> boyfriend to come over and let me back in, I spent the time
pacing around the
> backyard and alternately cursed myself at my stupidity and
thought about
> some specs the boss wants me to help write.  Well, my brain
works in strange
> (and wondrous) ways and I began to ponder something......
>
> Would applying a gold plating to your component pads affect
the electrical
> spacing required?  IPC-2221, Para 6.3 and Table 6-1 do not
mention board
> materials or any plating notes.  Does this mean that it doesn't
matter?
>
> Like I said, it's probably a silly question but I honestly don't
know the answer.
> It *seems* that it would make a difference but I can't find any
data to indicate
> what that difference would be.  Would some kind soul (and
there are MANY
> here at DC) care to enlighten me?
>
> Thanks for all of your help!
>
> JoAnn L. Amerson
> Design Librarian
> Red Lion Controls, Inc.
> E-mail: [log in to unmask]
> Voice: (717) 767-6961 ext 6308
>
>
> Thought for the day:
>   Ninety percent of the friction of daily life is caused by the
wrong tone of voice.
>
>
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