I have my father-in-law’s Unique slide rule. Sadly, Dennis I. Lawson died before the British government revoked the Official Secrets Act that prevented him...
42839
opticaldesigner
May 17, 2012 2:29 am
Dear Andrea I had to look up what a Brunsviga and a Marchant were. Brought back memories of my Dad's office (he was an accountant) when I was very little, with...
42838
opticaldesigner
May 17, 2012 2:28 am
Hi Ben, I'll have to check my sources out. I had I read it in a biography of Marie Curie, which included a thoroughly depressing account of her, her family and...
42837
opticaldesigner
May 17, 2012 2:27 am
Dear Maynard That's a VERY interesting point - one which I have never thought of and one which would seem to tell against my theory and it fits in with the...
42836
Andrea Celli
a_celli
May 16, 2012 6:35 pm
Fermi was very clever in using Brunsviga calculators, more than slide rules. I seen several reports about this argument. E.G., Anderson...
42835
Ben Kovitz
bkovitz
May 16, 2012 4:30 pm
... Rod, thanks for pointing this out. The illustration is a painting, of course, but I hadn't considered the possibility that it was a stylized depiction of...
42834
itstechpro
May 16, 2012 2:34 am
My Vector log log N1725 suffered severe corrosion of metal parts apparently due to the hygroscopic nature of the hard leather storage case which sat unused in...
42833
JamesH
jameshorne7
May 16, 2012 12:37 am
Hi. There is a great stationary store a block or 2 away from Harvard University, and about a mile or 2 from M.I.T. I spoke with an employee there and told him...
42832
Peter Holland
phollandde
May 16, 2012 12:36 am
Here is timo Leipälä's answer concerning literature on Russian and Soviet slide rules. Peter Holland www.PeterHolland.de/fc ... Betreff: Re: Fwd: RE: SR...
42831
Peter Holland
phollandde
May 16, 2012 12:35 am
Hello Dean, sorry, but I don't know any details about this book. I will ask Timo and let this mailing list know. Regards, Peter Holland ...
42830
Maynard Wright
mngwright
May 16, 2012 12:33 am
Although I'll be 70 this year, I still remember my early impressions of the number line: positive integers only at first. My concept was linear and I thought...
42829
John Schudy
taagaarai
May 16, 2012 12:33 am
In high school, some friends and I thought of the number line as a number circle with infinite radius. We came at this by dividing a (positive) constant by a...
42828
Paul Anderson
wackyvorlon@...
May 15, 2012 3:45 pm
I've been looking at the Gilson Midget, and it looks like a really slick slide rule. Ponoko has white delrin that they can laser cut and engrave. I'm thinking...
42827
opticaldesigner
May 15, 2012 3:44 pm
Dear Ben Thanks for the link - I enjoyed your slides immensely. I liked the comment about Fermi's team in with the pile reactor. However, I think the...
42826
edeanbutler
May 15, 2012 3:42 pm
Peter: I had not previously known about the book you recommend below (“Computing in Russia”). I note that Amazon in the UK sell this book – but it is not...
42825
Peter Holland
phollandde
May 15, 2012 12:50 pm
Timo Leipälä, a Finnish collector and Fellow of the OS, has published some articles on Russian and Soviet slide rules in the Journal of the Oughtred Society....
42824
edeanbutler
May 15, 2012 9:54 am
There is an excellent article about Soviet era log log slide rules in the current (Spring, 2012) Journal of the Oughtred Society. E. Dean Butler Broughton...
42823
Charles Quinlan
doctorquinlan
May 15, 2012 5:58 am
Don't know, but will try to find out. I have a friend who teaches Russian, and may have contacts. Q ________________________________ From: Paul Anderson...
42822
Robert Sandie
rbsandie
May 15, 2012 5:56 am
... [Non-text portions of this message have been removed]...
42821
Paul Anderson
wackyvorlon@...
May 15, 2012 4:29 am
Are there any books covering the Soviet slide rule industry?...
42820
sliderulenut
May 15, 2012 12:34 am
I have tried to learn more about Logarex but wasn't able to get any contact with Koh-I-Noor the parent company. As far as I was able to learn, Logarex was made...
42818
Dave KK7SS
d3j452
May 14, 2012 4:13 pm
Great presentation. Nice links. I particularly liked the last slide! -- Dave G KK7SS Richland, WA...
42817
Dick Rose
dickrose2
May 14, 2012 9:03 am
Hi All, Does anyone have a good seven foot rule for sale? Thanks. Dick Dick Rose <mailto:rarose@...> ...
42816
Paul Anderson
wackyvorlon@...
May 14, 2012 1:23 am
That is certainly what's going to happen:) I got both a 120C-ES and 160C-ES cheap on eBay, in original shrink wrap. They're no fun wrapped up like that. Sent...
42815
kd6mpy@...
kd6mpy
May 14, 2012 1:23 am
Ben, That presentation looks great. Would have loved to have seen it live. Sent from my iPad ... [Non-text portions of this message have been removed]...
42814
Ben Kovitz
bkovitz
May 13, 2012 5:51 pm
I gave the 5-minute talk at my friend's birthday event. Thanks for all your information and suggestions! The slides are here: ...
42813
edeanbutler
May 13, 2012 5:50 pm
To me, a slide rule in shrink wrap is useless. There is not good reason, in my mind, to keep a rule caged like this. I would think a real slide rule enthusiast...
42812
opticaldesigner
May 13, 2012 5:50 pm
Dear Robert: A thoroughly grand piece of info - thanks very much. I wonder whether anyone knows which tree is the "Silver Ash": there are a few that go by that...
42811
opticaldesigner
May 13, 2012 1:37 pm
Dear Paul I bought a Faber Castell 4/54 brand new from the Faber Castell website some time ago and it came sealed in a plastic bag (the 50cm long wooden...
42810
sliderule@yahoogroups...
May 13, 2012 9:07 am
Greetings, There are a lot of things we do on this list which may not be obvious to newcomers, and some of us veterans need reminders from time to time, too....
