# The Slide Rule: A Practical Manual

## Charles N. Pickworth

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THE old adage that time is money was never truer than it is to-day, when results have to be foreseen and approximated to, often under circumstances which give but little opportunity for detailed calculation. In the engineering profession especially estimates for work are frequently required at a few hours’ notice, the importance of being able to make calculations for power, speed, consumption, &c., with rapidity and precision cannot be over-estimated; hence we find advanced engineers making extensive use of mechanical calculators, such as slide rules, planimeters, &c. Of course the slide rule is a very old instrument, but it was more usually regarded as a mathematical toy. Of late years it has, however, for reasons mentioned above, occupied a position of great importance in the drawing office. Mr. Pickworth has perhaps done as much as anyone in popularizing the use of this instrument, as he has made it a subject of special study, and in the manual before us, which, by the way, is in its fifth edition, he describes the principle and the uses of the slide rule in plain and simple language, so that any intelligent engineer’s apprentice need experience no difficulty in acquiring the knowledge necessary to use this beautiful instrument. Mr. Pickworth’s work mainly deals with that form of slide rule known as the Gravét or Mannheim. He shows how to perform so many calculations required every day in an engineer’s office that one is tempted to ask what this instrument cannot do. Of course, in the hands of a loving enthusiast such as the author, the slide rule can be used for all purposes of calculation, but the ordinary engineer will probably use it for a few special purposes, such as calculating circumferences and areas of circles, arithmetic, and perhaps logs. To use the slide rule to its utmost capacity requires considerable preliminary study, hut once its working is mastered the instrument exercises a fascination of its own, and henceforth it becomes a pocket companion to be used in all but the most simple calculations. Mr. Pickworth describes also some other forms of calculators, including the “Boucher," which we ourselves use. In conclusion we would strongly urge young engineers to master the slide rule, and they cannot find a better work on the subject than the one before us.
The Auto: The Motorist's Pictorial, Vol. 3

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## 1.The Slide Rule: A Practical Manual

Editorial: CreateSpace Independent Publis (2017)
ISBN 10: 1533691231 ISBN 13: 9781533691231
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Murray Media
(North Miami Beach, FL, Estados Unidos de America)
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Descripción CreateSpace Independent Publis, 2017. Paperback. Estado de conservación: New. Never used! This item is printed on demand. Nº de ref. de la librería 1533691231

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## 2.The Slide Rule: A Practical Manual

ISBN 10: 1533691231 ISBN 13: 9781533691231
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Pbshop
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Descripción 2016. PAP. Estado de conservación: New. New Book. Shipped from US within 10 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Nº de ref. de la librería IQ-9781533691231

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## 3.The Slide Rule: A Practical Manual

Editorial: CreateSpace Independent Publis (2017)
ISBN 10: 1533691231 ISBN 13: 9781533691231
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Save With Sam
(North Miami, FL, Estados Unidos de America)
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Descripción CreateSpace Independent Publis, 2017. Paperback. Estado de conservación: New. Brand New! This item is printed on demand. Nº de ref. de la librería 1533691231

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## 4.The Slide Rule: A Practical Manual (Paperback)

Editorial: Createspace Independent Publishing Platform, United States (2016)
ISBN 10: 1533691231 ISBN 13: 9781533691231
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The Book Depository
(London, Reino Unido)
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Descripción Createspace Independent Publishing Platform, United States, 2016. Paperback. Estado de conservación: New. Language: English . Brand New Book ***** Print on Demand *****.THE old adage that time is money was never truer than it is to-day, when results have to be foreseen and approximated to, often under circumstances which give but little opportunity for detailed calculation. In the engineering profession especially estimates for work are frequently required at a few hours notice, the importance of being able to make calculations for power, speed, consumption, c., with rapidity and precision cannot be over-estimated; hence we find advanced engineers making extensive use of mechanical calculators, such as slide rules, planimeters, c. Of course the slide rule is a very old instrument, but it was more usually regarded as a mathematical toy. Of late years it has, however, for reasons mentioned above, occupied a position of great importance in the drawing office. Mr. Pickworth has perhaps done as much as anyone in popularizing the use of this instrument, as he has made it a subject of special study, and in the manual before us, which, by the way, is in its fifth edition, he describes the principle and the uses of the slide rule in plain and simple language, so that any intelligent engineer s apprentice need experience no difficulty in acquiring the knowledge necessary to use this beautiful instrument. Mr. Pickworth s work mainly deals with that form of slide rule known as the Gravet or Mannheim. He shows how to perform so many calculations required every day in an engineer s office that one is tempted to ask what this instrument cannot do. Of course, in the hands of a loving enthusiast such as the author, the slide rule can be used for all purposes of calculation, but the ordinary engineer will probably use it for a few special purposes, such as calculating circumferences and areas of circles, arithmetic, and perhaps logs. To use the slide rule to its utmost capacity requires considerable preliminary study, hut once its working is mastered the instrument exercises a fascination of its own, and henceforth it becomes a pocket companion to be used in all but the most simple calculations. Mr. Pickworth describes also some other forms of calculators, including the Boucher, which we ourselves use. In conclusion we would strongly urge young engineers to master the slide rule, and they cannot find a better work on the subject than the one before us. - The Auto: The Motorist s Pictorial, Vol. 3. Nº de ref. de la librería APC9781533691231

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## 5.The Slide Rule: A Practical Manual (Paperback)

Editorial: Createspace Independent Publishing Platform, United States (2016)
ISBN 10: 1533691231 ISBN 13: 9781533691231
Impresión bajo demanda
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The Book Depository US
(London, Reino Unido)
Valoración

Descripción Createspace Independent Publishing Platform, United States, 2016. Paperback. Estado de conservación: New. Language: English . Brand New Book ***** Print on Demand *****. THE old adage that time is money was never truer than it is to-day, when results have to be foreseen and approximated to, often under circumstances which give but little opportunity for detailed calculation. In the engineering profession especially estimates for work are frequently required at a few hours notice, the importance of being able to make calculations for power, speed, consumption, c., with rapidity and precision cannot be over-estimated; hence we find advanced engineers making extensive use of mechanical calculators, such as slide rules, planimeters, c. Of course the slide rule is a very old instrument, but it was more usually regarded as a mathematical toy. Of late years it has, however, for reasons mentioned above, occupied a position of great importance in the drawing office. Mr. Pickworth has perhaps done as much as anyone in popularizing the use of this instrument, as he has made it a subject of special study, and in the manual before us, which, by the way, is in its fifth edition, he describes the principle and the uses of the slide rule in plain and simple language, so that any intelligent engineer s apprentice need experience no difficulty in acquiring the knowledge necessary to use this beautiful instrument. Mr. Pickworth s work mainly deals with that form of slide rule known as the Gravet or Mannheim. He shows how to perform so many calculations required every day in an engineer s office that one is tempted to ask what this instrument cannot do. Of course, in the hands of a loving enthusiast such as the author, the slide rule can be used for all purposes of calculation, but the ordinary engineer will probably use it for a few special purposes, such as calculating circumferences and areas of circles, arithmetic, and perhaps logs. To use the slide rule to its utmost capacity requires considerable preliminary study, hut once its working is mastered the instrument exercises a fascination of its own, and henceforth it becomes a pocket companion to be used in all but the most simple calculations. Mr. Pickworth describes also some other forms of calculators, including the Boucher, which we ourselves use. In conclusion we would strongly urge young engineers to master the slide rule, and they cannot find a better work on the subject than the one before us. - The Auto: The Motorist s Pictorial, Vol. 3. Nº de ref. de la librería APC9781533691231

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## 6.The Slide Rule: A Practical Manual

Editorial: CreateSpace Independent Publishing Platform
ISBN 10: 1533691231 ISBN 13: 9781533691231
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Russell Books
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Descripción CreateSpace Independent Publishing Platform. PAPERBACK. Estado de conservación: New. 1533691231 Special order direct from the distributor. Nº de ref. de la librería ING9781533691231

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## 7.The Slide Rule: A Practical Manual

ISBN 10: 1533691231 ISBN 13: 9781533691231
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Books2Anywhere
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Descripción 2016. PAP. Estado de conservación: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. Nº de ref. de la librería IQ-9781533691231

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## 8.The Slide Rule: A Practical Manual

Editorial: CreateSpace Independent Publis (2017)
ISBN 10: 1533691231 ISBN 13: 9781533691231
Impresión bajo demanda
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Murray Media
(North Miami Beach, FL, Estados Unidos de America)
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Descripción CreateSpace Independent Publis, 2017. Paperback. Estado de conservación: New. Never used! This item is printed on demand. Nº de ref. de la librería P111533691231

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