I only know of the Dutch circle, a UK group and the JOS. The people who formed these groups somehow discovered each other and had already begun their...
... The Ln1 scale goes from e^1 to e^10; the Ln0 scale from e^.1 to e^1; the Ln-1 scale from e^.01 to e^.1. Thus, the Lnx scale has an extent from e^(10^(x-1))...
... The interpretation of the scales you have given seems to be correct in every respect. There is only one qualification that I would add to prevent any ...
Very good, Charlie, but my question was about which established organization or club was the first among the known German, Dutch, British, US, etc.? John...
Hi gang-- Just a note, from a user, not a collector, I recently ordered a couple of slide rules from Concise in Japan. Just as several of you said, Chiho...
Atsushi and Cyron: I have just located Cyron's emails he sent to me regarding his interpretations of how different scales are used. These were off line...
Sigismond Kmiecik was kind enough to forward me my original emails on this subject. I will pull them together and forward a coherent (?) summaryto the group...
All slide rule enthusiasts are invited to attend the next Slide Rule Convention held in conjunction with the 10th Annual Antique Scientific Instrument Show on...
S Solberg
solberg2@...
Mar 3, 2004 5:04 am
23452
Hello All I was watching Good Eats (Food Channel) last night and Alton Brown, the host pulled out a slide rule about half way through the show. He was ...
Gents-- As promised, here is a summary of the thinking developed by Ron Knap, Sigismond Kmiecik, Bill Robinson and me earlier. I have not yet compared it in...
This is a 15 cm, all plastic, single-sided S/R with nine(9) scales. It also has a 13 cm ruler on the upper edge. My wife found it in a thrift shop and paid ...
The other evening, I had a conversation about my experiences working with some Swiss engineers several years ago. This got me to thinking about any possible...
Cyron: Thanks for the great summary, you sure have done a good job. The next remarks are for those members of the ISRG that are wondering what all the fuss is...
The Billeters are Swiss. I have a Ernst Billeter Blitz Rechener circular slide rule from the early 20th century. There is also a Thacher type device I think by...
Hi David, Not to raise a firestorm (although I'm prepared for one should it arise), but please don't use the abbreviation "jap" for Japanese. I consider it ...
Michael J. Rosenborg
mrosenborg@...
Mar 4, 2004 4:57 am
23459
I, too, have seen references to Swiss slide rules in my far-ranging searches over every slide rule site I could find. The Loga cylindrical slide rule was, I...
Hi Mike, I noticed {as indicated on S/R] part of the original subject line and went to look for the Italian webpage. Sure enough, the SR in question had...
The 4th International Meeting of Slide Rule collectors was held in the Swiss city of Huttwil in in 1998. The Proceedings of the meeting describe and illustrate...
Yesterday, I said I didn't know the full use of the "Ltheta" scales. Should have dug deeper in my old notes! For "theta" = an angle in degrees on Ltheta-1...
The citations I had in mind of Hopp's tables and von Jezierski's book for Swiss makers have already been noted. However, the question started me to thinking in...
Hello Michael, Please accept my most sincere apologies for having offended you or anyone else of Japanese descent. I find all forms of discrimination including...
Many of the new "users" had asked me off list about solving quadratics by SR. Try this: Find the distance between the intersection points of these two ...
The following example in my earlier email had an erroneous "=" sign instead of a "+" sign. For two resistances in parallel, 1/R = 1/r1 + 1/r2. Say r1 = 30...
I believe it is a pair of dividers such as a machinist might use, or possibly a compass. John Prince [Non-text portions of this message have been removed]...
JLPMHP@...
Mar 5, 2004 3:36 am
23471
On Thu, 04 Mar 2004 18:46:18 +0900, Atsushi Tomozawa <tomozawa@...> wrote on the subject "Re: SR Hono-Rietz - jap ... Hi Atsushi, Yeah, that...
Michael J. Rosenborg
mrosenborg@...
Mar 5, 2004 3:56 pm
23472
Thanks, David--apology gratefully accepted. Please don't unsubscribe. If you do, so will I. I didn't think you meant anything by it, and I mentioned that in...
Michael J. Rosenborg
mrosenborg@...
Mar 5, 2004 3:56 pm
23473
... appears ... It is a compass . Lok at http://www.atlasgeo.ch/fotw/flags/de-ddr.html for a full explanation. Sigismond Kmiecik...
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