TECHNET Archives

September 2007

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
DTremmel <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, DTremmel <[log in to unmask]>
Date:
Tue, 4 Sep 2007 15:34:10 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (174 lines)
I guess that's the problem; they want to B Major but with all the dissonance
it just winds up being a cacophony.

Thank you,
 
David Tremmel
Value Recovery
847 557-9574 - Phone
847 557-9573 - Fax
http://ValuRecovery.com

http://Stores.eBay.com/ValuRecovery

 
VALUE RECOVERY
Quality is the nature of the service
-----Mensaje original-----
De: TechNet [mailto:[log in to unmask]] En nombre de Hfjord
Enviado el: Martes, 04 de Septiembre de 2007 03:29 p.m.
Para: [log in to unmask]
Asunto: [TN] SV: [TN] [BULK] Re: [TN] OT: reminiscences

Better than being a catapulp tester...meow
Your song contest story got 7 points of 10 possible. Very odd profession.
What's them tuned in Iraq? B Minor?

/Inge

-----Ursprungligt meddelande-----
Från: TechNet [mailto:[log in to unmask]] För Karl Hunsinger
Skickat: den 4 september 2007 20:20
Till: [log in to unmask]
Ämne: Re: [TN] [BULK] Re: [TN] OT: reminiscences

A very noble story. But is it also said that Octavius had perfect pitch? :)

Karl

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Tuesday, September 04, 2007 1:25 PM
To: [log in to unmask]
Subject: [BULK] Re: [TN] OT: reminiscences
Importance: Low


My first job was as a CTE (Catapult Test Engineer) for a King who wanted
to improve the accuracy of his artillery. Earlier he had told his Court
to learn how flutes on an arrow improved flight and accuracy and apply
the lessons learned to the Catapult. So the call went out to build the
best Flute.
Lacking adequate requirements definition, some of the best piccolos
started to show up.
The king grabbed one and threw it and down to symbolic defeat. In doing
so it made a very shrill sound and hit his boot (this became the first
footnote in history). So my job was to test and install flutes on
Catapults. 
The obvious thing was use it for pitch and altitude adjustment. After
the scale models were made it was time for testing. 
I had many youths available to me that were on loan from the Knight
shift. They were chosen for their mass (not choice of funeral services
needed, but weight) and digital skills. At launch they were to precisely
hold the flute to the air. We had to go through a lot of pages before we
got the directions right. The number of notes they could hit established
velocity and the length of the song gave distance (this was the creation
of the term Artillery range); how they landed was on their own accord.
So now you could adjust the trajectory to B flat or have A sharp rise in
elevation. One of my best helpers, Octavius could always tell which team
would win the accuracy contest. 
And so it was to come to be known that I was the first person credited
with the ability to fine-tune the instruments of destruction. 
Dewey  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis
Sent: Saturday, September 01, 2007 12:31 AM
To: [log in to unmask]
Subject: [TN] OT: reminiscences

When I was a student, in 1948, I took a summer job with a company making

aircraft gyroscopic gunsights. My work involved:
1. mixing potassium bichromate with fish glue
2. applying a coat of this mix to a very thin blackened steel sheet
3. after drying, exposing same to UV light through glass photographic 
plates with registration pins, turning over and doing the same on 
t'other side (different plate)
4. developing the image with hot water
5. etching the sheet in nitric acid
6. rinsing in clean water
7. stripping the resist in boiling strong sodium hydroxide solution

The result was about twenty graticules with two curved, very fine, 
slots. If two were placed back-to-back, depending on their respective 
positions, two dots of light shone through. These were projected on a 
half-silvered mirror and the gunner would turn a knob to align the two 
dots of light with the wingtips of the enemy aircraft, to get the range.

This was a very hazardous job but it was my first (but not last!) 
experience of using a photoresist for etching a metal. Can anyone beat 
this kind of work, going back 59 years? :-)

Brian

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at:
http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2