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Inhaltsangabe: This is the first historical account tracing the development of the technology of feedback control from its earliest applications. The author describes how the notion entered technology and in what forms it flourished. A case study in the intellectual history of technology, the book spans the invention of feedback control devices in all degrees of realization, from the verbally expressed idea to the industrially proved apparatus. It starts out by establishing three criteria for a precise definition of the concept "feedback": (1) the system must carry out commands and maintains the controlled variable equal to the command signal in spite of external disturbances; (2) the system operates as a closed loop with "negative feedback"; (3) the system includes a sensing element and a comparator of which at least one can be distinguished as a physically separate element.
Ancient devices meeting these criteria are discussed in detail: the water clock of Ktesibios, Philon's self-regulating oil lamp, float devices by Heron, Arabic and Far Eastern inventions. These are followed by the first thermostatic ovens and incubators constructed in the seventeenth century, and steam-pressure and other regulators built in the eighteenth century, in both cases in Britain. The classical example is the governor of James Watt's steam engine. The evolution of speed regulators is traced through the nineteenth century, and the logical steps toward the developments of automation and cybernetics are discussed briefly.
The author also advances an interesting theory as to why feedback devices began to appear in quantity in the second half of the eighteenth century, and why mainly in Britain. In his view this was not so much a purely technological breakthrough or the result of the new demands created by the Industrial Revolution as it was a fundamental change in man's attitude toward machinery and toward systems in general: the system came to be regarded as autonomous, maintaining equilibrium by mechanisms inherent in itself. In technology, such thinking led to the invention of feedback devices; in economics, to the free enterprise system of Adam Smith; in politics, to the division of powers and the system of constitutional government.
Otto Mayr translated this book from his own German original.
Language Notes: Text: English, German (translation)
Titel: The Origins of Feedback Control
Verlag: The MIT Press
Zustand: very good
Buchbeschreibung The MIT Press, Cambridge, MA, 1970. English Edition, orig. German, 1969. 8vo. VG/ - no DJ. purple wraps spine with toned white title, fuschia author and white publisher. light surfacewear and rubbing evident to the adjacent softcover front/rear. ends and extremities have a hint of wear. minor ink dash or check mark, infrequently within the textblock. as is. includes more than 70 figures. plain ivory outer edges. 151 pp. ISBN# 26260354. Rockville. Buchnummer des Verkäufers 7-125-1278050
Buchbeschreibung Cambridge & London: MIT Press, 1970., 1970. Soft cover. Buchzustand: Very Good. No Jacket. 1st Edition. First paperback edition (published simultaneously in cloth). vii, 151 pp; 72 figs. Original wrappers. Very Good. Buchnummer des Verkäufers D00370
Buchbeschreibung Cambridge & London: MIT (M.I.T.) Press, 1970., 1970. Hardcover. Buchzustand: Very Good. No Jacket. 1st Edition. First Edition in English (1st German ed., 1969). vii, 151 pp; 72 figs. Original cloth. Ex-library, else Very Good, without dust jacket. Buchnummer des Verkäufers 22348
Buchbeschreibung M.I.T. Press, 1970. hardcover. Buchzustand: As Is. Out of print, Ex-Library with typical markings on front board, top/bottom edges, front pastedown/ffep, Title/Preface/first pages; cover faintly rubbed/bumped/soiled/sunned, otherwise intact; edges faintly sunned/soiled; rear endpaper faintly soiled at corner, small paper remnant pasted to ffep; binding tight; interior intact and very clean, except where noted. Buchnummer des Verkäufers 599797
Buchbeschreibung MIT Press, 1970. Cloth. Buchzustand: Very Good. Zustand des Schutzumschlags: Very Good. Very good hardcover in very good dj. Buchnummer des Verkäufers 052026
Buchbeschreibung M.I.T. Press, Cambridge & London, Cambridge, 1970. hardcover. Buchzustand: Good. Former Library book. Shows some signs of wear, and may have some markings on the inside. Buchnummer des Verkäufers GRP92578364
Buchbeschreibung Cambridge & London: MIT (M.I.T.) Press, 1970., 1970. Hardcover. Buchzustand: Very Good. Zustand des Schutzumschlags: Very Good. 1st Edition. First Edition in English (1st German ed., 1969). vii, 151 pp; 72 figs. Original cloth. Ex-library: ink stamps on front flyleaf and verso of title page. Tape remains (from removal of dust jacket) on covers. Pouch on front flyleaf. Else Very Good, in very good dust jacket. Buchnummer des Verkäufers 18123
Buchbeschreibung MIT Press, 1971. Hardcover. Buchzustand: Good. no dust jacket, Item may show signs of shelf wear. Pages may include limited notes and highlighting. Includes supplemental or companion materials if applicable. Access codes may or may not work. Connecting readers since 1972. Customer service is our top priority. Buchnummer des Verkäufers mon0001114553
Buchbeschreibung MIT Press, 1971. Hardcover. Buchzustand: Acceptable. Wear on edges of dust jacket, Spot staining on exterior of book Item is intact, but may show shelf wear. Pages may include notes and highlighting. May or may not include supplemental or companion material. Access codes may or may not work. Connecting readers since 1972. Customer service is our top priority. Buchnummer des Verkäufers mon0001124362
Buchbeschreibung Mit Pr, 1970. Paperback. Buchzustand: Near Fine. Paperback, 151 pp. Light cover rubs, name inside cover, else new. Buchnummer des Verkäufers 022122