Because of their graphical anologue nature, nomograms share with slide rules the ability for users to see at a glance the extent by which given changes in...
36519
Matthew Lecin
mitchellmacbain
May 1, 2009 12:35 pm
On Thu, Apr 30, 2009 at 19:56, Raymond Kornele ... Not any more, you can just go to http://mail.google.com/ and create an account. }Mijjil}...
36520
Winchell Chung
nyrathwiz
May 1, 2009 1:38 pm
... There is a forum devoted to nomograms here http://www.nomography.org/phpBB3/index.php but it is pretty dead at the moment....
36521
Cyril Catt
newcastleewc...
May 1, 2009 1:40 pm
I just want to add one more reference to this topic. Burrows, Walter Herbert; 'Graphical Techniques for Engineering Computations' Macmillan; London; 1965 ...
36522
CTLPELWV@...
carbide01
May 1, 2009 3:00 pm
I've forgotten most of the rules of thumb for placing the decimal point for calculations using the various scales, so I fall back on the simple expedient of...
36523
jon_chandler_jones
jon_chandler...
May 1, 2009 3:00 pm
Thanks for all the good answers. I'll have to sit down and work some problems and try the method. That it is of limited value must explain why my later 1441...
36524
jon_chandler_jones
jon_chandler...
May 1, 2009 3:01 pm
You are correct sir, as far it as goes, but you have conflated two of my statements without some vital ancillary information. I am a software developer. I...
36525
zvidoron@...
May 1, 2009 3:32 pm
I just round the numbers to find an approximation. 4.11 X 0.126 gives an SR result made of the digits 518. I try mentally 5 X 0.1 = 0.5 and thus the real...
36526
marion moon
sliderulenut
May 1, 2009 3:57 pm
Hi, Dan, if you want an interesting slide rule for computation, try the Pickett 1010 SL. This 20 scale non-log-log rule, this one is very efficient to use. ...
36527
Roy Morgan
goodguy3good...
May 1, 2009 4:29 pm
On May 1, 2009, at 9:49 AM, jon_chandler_jones wrote: ... ... Jon, When I was in the Navy Reserves our helicopter squadron had an odd collection of officers....
36528
jon_chandler_jones
jon_chandler...
May 1, 2009 7:21 pm
I laughed quite loudly at your account of the astrological physicist. Possibly part of his pain was the first few times that happened, and he said "no...
36529
Raymond Kornele
krazykyngekorny
May 1, 2009 7:26 pm
Thanks for the update. _____________________________ KrazyKyngeKorny(Krazy, not stupid) ...
36530
Matthew Lecin
mitchellmacbain
May 1, 2009 7:41 pm
On Fri, May 1, 2009 at 09:49, jon_chandler_jones ... I recommend the "No, I will not fix your computer." t-shirt, from ThinkGeek: ...
36531
jon_chandler_jones
jon_chandler...
May 1, 2009 9:07 pm
Excellent. I'll also have to order the one that says "I void warranties." The description on the site fits me, and I suspect a few others on this board, to a...
36532
John Oakhill
oakhillj
May 2, 2009 12:18 am
Some time ago I came across a website which features a chronology of Faber Castell case styles. I foolishly neglected to bookmark it and now can't find it. Can...
36533
Dave Margulius
dmargulius
May 2, 2009 6:04 am
Hi Folks: Here's the past week's top 40 completed eBay slide rule auctions (as of today). Have a good weekend, Dave For direct links, go to this page and...
36534
Roy Morgan
goodguy3good...
May 2, 2009 6:05 am
My ebay purchased Picket N-515-T electronic slide rule arrived today. As they'd say in the 1960's movies, Its gonna be a swell gadget! The on-line copy of the...
36535
Donald Lewis
donaldcainlewis
May 2, 2009 12:42 pm
I am all in favor of mental short cuts and mentally computed approximations in determining the location of decimal points, as long as you KNOW the method you...
36536
Mark Armbrust
cadet1620
May 2, 2009 2:25 pm
... I straightened the pages in that scan and attempted to filter them a bit to make them more readable, with mixed results. ...
36537
Roy Morgan
goodguy3good...
May 2, 2009 5:31 pm
On May 2, 2009, at 9:39 AM, Mark Armbrust wrote:... ... Thanks much for your efforts. I'll check out the changes. Thanks, Roy Roy Morgan k1lky@... ...
36538
dfsmth45
May 2, 2009 5:33 pm
Hi Donald, I agree with you about the difficulty of using approximations and the method I use is basically the same as yours, but I find it easier to just do...
36539
marion moon
sliderulenut
May 3, 2009 12:28 am
I have used the scientific notation approximation for years and don't recall a failure. This avoids what I call mental gymnastics in determining the decimal...
36540
dfsmth45
May 3, 2009 6:58 am
Hi Marion, Things do get more complicated if you use the CF, DF, CIF scales. In that case, fall back to the more general rules than the ones I gave earlier...
36541
Douglas Macdonald
mm2ps
May 3, 2009 2:09 pm
Hi, I would like to pick your minds. As an inroad to discussing calculating machines, I want to set up a demonstration of a slide rule (or other manual...
36542
Warren Salomon
moonblue_moo...
May 3, 2009 3:45 pm
Douglas: The best way I know to show of the advantage of a slide rule is to use the kind of problem at which it excels, and that would be in figuring...
36543
Tom
tomcattrall
May 3, 2009 3:45 pm
... Like you, I use the folded and inverse scales wherever possible to minimize slide movements. In many cases, the placing of the decimal point is known by...
36544
Mark Armbrust
cadet1620
May 3, 2009 3:45 pm
I just finished grading a bunch of tests. I had to convert scores out of 85 to percentages. Easy with a slide rule: C 85 over D index; find percentage on D...
36545
marion moon
sliderulenut
May 3, 2009 3:46 pm
Douglas, I can think of some problems where proportion is very fast on a slide rule but not on a calculator. But, this is probably more than you are asking...
36546
marion moon
sliderulenut
May 3, 2009 11:30 pm
Mark, your percentage calc is a simple proportion. C(85)/D(100%)= C(score)/D(score%). This is case where if you know any two values, you can find the third...
36547
marion moon
sliderulenut
May 3, 2009 11:30 pm
Steve, knowing the order of magnitude is one part of the problem. Having a general idea of the range of the answer provide some more confidence that your slide...
