Its a selfguided demo that demonstrates different calculations by simple examples. Hp memory project virtual slide rule click here to go back the java runtime environment sun microsystems is required to see this animation. The cursor travels the full length of the body, and the hairline crosses these scales for direct comparison. Also included is how to use your pickett slide rule, a simple 4 page manual. The slide rule cannot be regarded as a modern invention since the first design dates from the early part of the seventeenth century, but every year sees additions and variations made and the uptodate instrument has, as might be expected, advanced greatly beyond the earlier types. In a separate calculation you find the order of magnitude by combining the powers of 10. Perhaps more importantly, my class of 1980 was the first class to have women. The geekfactor of having a slide rule on your wrist as well as the aviation and spacerace connections sold me on the concept.
The construction is bamboo, a wonderfully stable, mildly lubricious material. These slides are stored with their annonymised clinical information, which can be used for teaching and training. The sterling slide rule has standard a, b, c, c, d, and k scales. An instruction manual pdf post versalog 1460 simulation, adapted from the virtual slide rule script by derek ross. Slide rules were simple to use and accurate enough for most occasions.
I tried your virtual slide rule page, it is very interesting. The virtual pathology slide library is a collection of slides which have been digitised and curated by a trained pathologist. Im happened to meet your website when i searched slide rule. Instructions for sterling precision slide rule national. As graphical analog calculators, slide rules are closely related to nomograms, but the former are used for general calculations, whereas the latter are used for applicationspecific computations the slide rule is used primarily for multiplication and division, and also for functions. Their elegant simplicity is still a thing of wonderment. Also, the creator of the universal slide rule league a lunchtime 5minute competition of 10.
Illustrated selfguided course on how to use the slide rule. The oesper collections own a circa 1960 chemical slide rule. We are interested in recognizing changes in healthcare practice that incorporate innovation and technology in managing patient. This package allows you to run dereks virtual slide rule gallery selfcontained on any computer, without an internet connection. O when adjusting the cursor, or flipping the slide rule over for scales. There are also a couple of slider calculaters from brian and myself. Initially the most popular brand was known as an ashley chemical slide rule. Overview of the major categories of slide rules, and descriptions of common scale labels and meanings. Slides virtual pathology at the university of leeds. The appeal of slide rules for use and as collectables. I purchased a seiko snab67 flight master chronograph in 2009. A slide rule is a mechanical device that uses the alignment of numeric values marked on sliding scales to perform mathematical calculations. Theres a good selection at the international slide rule museum website, including an ingenious circular rule using a cd case by ying hum, see below. For the past 400 years, the calculations performed on slide rules have made possible such feats as designing the first skyscraper and putting a man on the moon.
These pages should work in modern browsers that support the most current javascript standard. The slide rule the book, written by florian cajori, is the standard work on the early history of the slide rule. It was a indicator of just how much the person could spend on a slide rule. Here derek has put together a number of working slide rules that can be used for calculations and demonstrations on the computer. Post versalog 1460 the vintage technology association. The sterling precision slide rule, with the instruction sheet shown here, was issued to the u. You may want to download a pdf copy of this instructable to your computer so. To do a calculation with a slide rule you reduce all numbers to scientific notation with 24 digits then use the slide rule to perform the basic operations. Bissaker slide rule 1654 circular slide rule king pocket calculator 66 sclales thacher calculator 30 ft. Because of the delay needed to download the scale image emulator sometimes calculates height of scale incorrectly. You can enter and read a number typically to two or three decimal digits only. An easy introduction to the slide rule internet archive.
This set is unused and immaculate the box is a little worn. It has a slide rule bezel styled after the famous breitling navitimer which in turn borrowed features from the e6b manual flight computer carried by. After a buying or making a slide rule, if the original manual isnt available online many are, theres a superb illustrated tutorial on slide rule use pdf download offered on the oughtred. Slide rule universe take the learn to use and clean them link. Virtual slide rule see how calculations used to be done before the days of electronic calculators, find out about an important piece of engineering history with this virtual slide rule.
Additional slide rule material can be accessed using the links in the left bar under slide rule content pages. They were for tying the far end to your thigh so it didnt flop around. Mannheim slide rule 1850 faber castell 283n nestler 23r mannheim issac newton put 3 scales in parallel in 1675 to compute cubes, and proposed the cursor in 1677, but was ignored. Perhaps in a future release some of those will be added, but instructions are still available online in the form of scanned manuals from physical slide rules, and in various articles published online. This program does not include instructions on how to use a slide rule. This site hosts a portable package of derek ross, stefan vorkoetters, and brian bartholomews virtual slide rules browserhosted slide rule simulators. Background on logarithms, history of the slide rule, and how it all works.
The slide rule also does not tell you the sign of your result. Additionally, the slide rule does not tell you where the decimal point is located in the answer. The windows application, unlike the browser based one, allows you to enter values for any of the boxes. The a, d, and k scales are on the body, the b, and c scales on the slide. All slide rule specimens, scans, photos and ephemera are organized into one of 51 galleries. I taught evening classes in solid state circuit design at our local community college from 1967 to 2000, and during the pre calculator days, around 1974, i assumed my students had a firm grasp on slide rule operation. The international slide rule museum has a multitude of resources for slide rule fans, including scans of user manuals from a variety of manufacturers. A virtual slide rule for windows 982kxpvista some may have played around with the virtual kids rule.
This one is complete with a numeric readout of the cursor position. Here is the link to the original web page for this simulator, as well as stefans historical computing devices. Download here the printable template or the standalone program. The slide rule, also known colloquially in the united states as a slipstick, is a mechanical analog computer. The link below will take you to dereks virtual slide rule site. Its really useful if youre unfamiliar with reading the various scales. Updated november 3, 2001 types of slide rules and their scales. This web page has been edited to make it a bit more modern in appearance, to remove the user comments and external links except the aristo 970 one which i have also made part.
Dereks virtual slide rule gallery a whole bunch of simulated slide rules. Here are two videos with regrettable autofocus hunting explaining the basics of computation with a slide rule. They were finally abandoned with the advent of handheld calculators, computers and smart phones. Click here to go back the java runtime environment sun microsystems is required to see this animation. Use this key if the scales of slide rule are at some distance from each other. The slide rule depicted inside the manual is dietzgens national, model 1767, and the manual was received with 1988.
This slide rule is a genuine classic and deservedly so, with one of the best scale layouts ever devised for professional technical work. The printed manual distributed with a slide rule, is not a printout of the pdf, but rather the pdf is a. I have set the virtual slide rule in the graphic for the problem 6 divided by 2 3. Advancing virtual care 15 in response to the cy 2018 pfs proposed rule, we received feedback from stakeholders supportive of cms expanding access to services that support technological developments in healthcare. Calendar year cy 2019 medicare physician fee schedule pfs. Scroll down on the menu on the left to go directly to a particular brand or to see other data. In addition are a few manuals i have written for my own jugglers and radix series slide rules. Here is the portable package viewable online from my web site. Here is a virtual slide rule which works in your browser. Ron manleys slide rule site take the instructions link.
Manleys slide rule page among other resources on this page is a nearly complete teach yourself the slide rule manual that manley has scanned in. I believe we were the last class to be issued slide rules because of the advent of electronic calculators. The citation information for this sixteenpage booklet is. The cms expanding access to services that support technological developments in healthcare. Valveworks usa is an api 6a licensed manufacturer of the largest, most comprehensive api 6a product line of any independent in the world. Useful if you find my primer to be somewhat lacking. Compared to a calculator, a slide rule is severely limited in its accuracy. Here are a few instruction manuals for aw faber faber castell slide rules that i have acquired, most came with slide rules as indicated. Valveworks usa prides itself in its vast stock of readytoship products which. Slide rules were used for over 400 years for calculating and estimating. There is also a version as a word document which is smaller 2040 kb.
Located on the slide, most calculations are done in conjunction with the fundamental cd scales. If you look at some of the holders there are 2 long strings often leather at the end. Basic slide rule operation for scientists and engineers 10. Dereks virtual slide rule gallery a gallery of clickable simulated slide rules. Naval academy class of 1980 as plebes in the summer of 1976. Virtual pickett n909es simplex trig rule with metric. On the reverse side of the slide, the s, l, and t scales appear, and the slide may be re.
You can start up this virtual slide rule opens in new window to try these and other problems on your own. If you have glass slides that you would like digitising for your research project, we offer a range of. Mar 29, 2019 to use a slide rule to multiply 2 numbers together, move the decimal points for each number you are multiplying so they fall between the values of 1 and 10. I particularly like the simulation of the pickett n 525es, a statistical slide rule and one that is uncommon. Next, find the smaller number on the d scale and slide the c scale so the 1 on the far left lines up with the smaller number. All other scales on a slide rule are referenced to the c and d scales. The graphic shows the left end of the virtual slide rule with the various scales.