Re: Slide Rules and Slipsticks - in the 1960's B.C. - i.e. (Before Computers)
Yes Joe anyone under 50 (probably 60) has no idea what were talking about. Think about the things that were built ie Hoover Dam Titanic etc that were all designed using hand calculations and slide rules. What most people don't realize about slide rules was one had to have a good idea what the final answer was while doing the calcs in order to carry the decimal point through the calculation process. Don Anderson
On Friday, March 12, 2021, 10:28:54 a.m. MST, Joe Zeglinski <j.zeglinski@...> wrote:
Don
Love it – dem’ was the days of real computing, unlimited
memory, and engineering hard drive.
Yours looks like the famous, highly desired ... K & E
Log-Log-DeciTrig-Duplex “slip-stick”. Engineers weren’t really entitled to
own one of those, unless they could say that quickly, with a drink in
their hand.
Way cool Pickett man myself – its case, almost
like having it slip into “Corinthian leather”, but probably just cowhide
:-)
K&E rare Bamboo style was fine ... but Pickett’s
unique engineering design with its specially chosen Green spectral colour, for
easy visibility with bleary eyes when cramming in the middle of the night,
Magnesium alloy with tiny ball bearings at the slide’s ends for high speed
computing – engineering heaven. Works on both east and west side of its
cursor, easily finds home position on reboot, even works inverted for the
log-log and exponential functions ... and BEST of all ... never
needs AeroShell-33 relubrication :-)
However, my Radio Astronomy engineering prof, used his
Abacus, to prove I didn’t need to always run his 3C-273 strip chart data through
the PDP-11. I think his was an 8-Bead, (later called a Byte), “flip-stick”
calculator.
Joe Z.
From: Don Anderson via groups.io
Sent: Friday, March 12, 2021 11:17 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Quick Release Gearbox Modification for Older
AP1600
You mean like this?
Don
Anderson On Friday, March 12, 2021, 07:57:25 a.m. MST, George
<george@...> wrote:
Don,
They were only cool if they were full. <G> …but real cool was the slide rule slung from your belt in its case! Talk about a chick magnet…ah, the old days! Regards, George George Whitney Astro-Physics, Inc.
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