Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 898
Book Description
Nature
Author: Negretti & Zambra's Encyclopaedic Illustrated and Descriptive Reference Catalogue of Optical, Mathematical, Philosophical, Photographic and Standard Meteorological Instruments, Manufactured and Sold by Them
Author: Negretti & ZambraPalmer's Pocket Scale
Author: Aaron PalmerPublisher:
ISBN:
Category : Arithmetic
Languages : en
Pages : 56
Book Description
Researches on Light
Author: Robert HuntPublisher:
ISBN:
Category : Photochemistry
Languages : en
Pages : 328
Book Description
Rabdology
Author: John NapierPublisher:
ISBN:
Category : Computers
Languages : en
Pages : 184
Book Description
This first English translation of Napier's Rabdologia provides a clear and readable introduction to a group of physical calculating devices, which, long overshadowed by Napier's logarithms, have their own intrinsic interest and charm. "The tasks which fill'd beginners with dismayThis little book has banish'd clear away." John Napier had already discovered and published an epochmaking treatise on logarithms when in 1617 he turned to "rabdology" or rod-reckoning as yet another means by which to confront the problem of simplifying the huge calculations involved in multiplication, division, and the extraction of roots. This first English translation of Napier's Rabdologia provides a clear and readable introduction to a group of physical calculating devices, which, long overshadowed by Napier's logarithms, have their own intrinsic interest and charm. Book I describes the first device, a set of rods known as "Napier's Bones," which were inscribed with numbers forming multiplication tables and used in conjunction with pencil and paper. Book 11 presents a series of simple calculations that readers can solve by using the rods, and a series of tables of ratios useful for division. Napier then describes the second mechanical device for calculation, a forerunner of the modern calculator that he named promptuary or "place where things are stored ready for use." The third device, similar to a chessboard, allowed calculations to be performed by moving counters around the squares. Observing that the numbers had to be represented in what would now be called binary form, Napier provides instructions for changing from ordinary to binary numbers and back again, a method that worked equally well for multiplication and division and that had a particularly elegant symmetry when applied to the extraction of square roots.
A Treatise on the Forces which Produce the Organization of Plants
Author: John William DraperPublisher:
ISBN:
Category : Botanical chemistry
Languages : en
Pages : 370
Book Description
Pike's Illustrated Descriptive Catalogue of Optical, Mathematical and Philosophical Instruments
Author: Benjamin PikePublisher:
ISBN:
Category : Mathematical instruments
Languages : en
Pages : 360
Book Description
Pike's Illustrated Descriptive Catalogue of Optical, Mathematical and Philosophical Instruments, Manufactured, Imported, and Sold by the Author; With
Author: Jr Benjamin PikePublisher: Hardpress Publishing
ISBN: 9781290319744
Category :
Languages : en
Pages : 410
Book Description
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Pike's Illustrated Descriptive Catalogue of Optical, Mathematical and Philosophical Instruments
Author: Benjamin PikePublisher: Palala Press
ISBN: 9781357986216
Category :
Languages : en
Pages :
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Heinecken
Author: Robert HeineckenPublisher:
ISBN:
Category : Photography
Languages : en
Pages : 170
Book Description