sliderule at Yahoo! Groups

Re: Slide Rules With Multiple Slides

sliderulenut — Tue, 18 Jun 2013 18:19:50 GMT

I have just read some of these notes on multiple slide slide rules. Mackey"s book "Graphical Solutions" shows how to design such rules. To solve a formula with

Re: Slide Rules With Multiple Slides

Maynard Wright — Mon, 17 Jun 2013 18:35:23 GMT

The article was also of interest to me as I have a "Patent Applied For" marked Hornyak and Kelly Weight Slide Rule as described on pages 42 and 43. The

Slide Rules With Multiple Slides

E. Dean Butler — Sun, 16 Jun 2013 12:57:27 GMT

Yesterday I posted a question about an Aston & Mander 150 year old 24-inch rule with two juxtaposed slides -- wondering about the uses. Today I found an

Flying Fish Rules

Dick Rose — Sun, 16 Jun 2013 04:34:44 GMT

Warning: Brief public service/commercial message. ;-) I just noticed that there had been some wild bidding on eBay for some Flying Fish, Chinese rules. I

Re: Two Sided Rule With Two Juxtaposed Slides

Dick Rose — Sun, 16 Jun 2013 04:27:48 GMT

Someone stuttered. ;-) Dick Rose rarose@... www.rose-vintage-instruments.com 181 Royal Farm East Blacklick, OH 43004 614-861-3312

Two Sided Rule With Two Juxtaposed Slides

E. Dean Butler — Sun, 16 Jun 2013 03:10:25 GMT

I just acquired a ca. 150 year old Aston & Mander boxwood slide rule with two juxtaposed slides. What is the purpose of juxtaposing these two slides? In modern

Re: Pythagoras on slide rules

sliderulenut — Sat, 15 Jun 2013 17:43:00 GMT

Anon: virtually every "trick" I have seen can be found to be based using proportions. Your problem starts by defining the tangent of the base angle as: x/y =

Re: logarithmic clock again

Daveninvest — Sat, 15 Jun 2013 16:06:47 GMT

Interesting though all this is, I just ring the 'speaking clock' and they log the time for me ! DaveN

Re: Pythagoras on slide rules

Paul Hirose — Sat, 15 Jun 2013 16:06:40 GMT

In September 2008 I offered a Pythagoras solution for rules with a double length root scale but no A or B:

Re: logarithmic clock again

William Brohinsky — Sat, 15 Jun 2013 03:29:32 GMT

I wonder... How many of you consider that you read an analog (hands and tickmarks and rotation) clock by relying on numbers, and how many by relying on the

Re: Western Union Telegraph Kit with K&E Slide Rule

Not Here — Sat, 15 Jun 2013 03:27:29 GMT

Be prepared, it's dangerous out there. ________________________________ From: Bill Burns To: sliderule@yahoogroups.com Sent: Friday, June

Western Union Telegraph Kit with K&E Slide Rule

Bill Burns — Sat, 15 Jun 2013 03:12:28 GMT

Here's an application I hadn't seen before - a field survey kit for Western Union which includes a slide rule and a Colt, among other items:

Re: logarithmic clock again

E. Dean Butler — Fri, 14 Jun 2013 12:36:55 GMT

Making a physical logarithmic clock is well beyond my capability -- but I will buy one if someone can figure it out! What would really be wild is for all hands

New Items, Vintage Instruments

Dick Rose — Fri, 14 Jun 2013 09:37:37 GMT

Hi Group, I am continually adding items to the Vintage Instruments catalog, which is now so large that even I find it a bit overwhelming. And while it is,

Re: logarithmic clock again

Bob — Fri, 14 Jun 2013 01:38:22 GMT

It would not be very difficult to make a digital clock which works like this, using a PICAXE or equivalent processor chip programmed to count logarithmically.