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  • 1
    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Surveying--Greece--Instruments. ; Electronic books.
    Description / Table of Contents: This book contains translations of all the ancient texts on surveying, including major sources hitherto untapped. It sets out to reconstruct the instruments and to explain how they were used. A level of technical sophistication emerges, which must count as one of the greatest achievements of the ancient world.
    Type of Medium: Online Resource
    Pages: 1 online resource (411 pages)
    Edition: 1st ed.
    ISBN: 9780511154447
    DDC: 526.9/093
    Language: English
    Note: Cover -- Half-title -- Title -- Copyright -- Dedication -- CONTENTS -- FIGURES -- TABLES -- PREFACE -- EXPLANATORY NOTES -- CROSS-REFERENCES -- TRANSLATION -- TERMINOLOGY -- GRADIENTS -- MEASURES -- Greek -- Roman -- Islamic -- INTRODUCTION -- PART I INSTRUMENTS AND METHODS -- CHAPTER 1 THE BASIC ELEMENTS -- A. PRECURSORS OF THE GREEKS -- B. MEASURING DISTANCES -- C. ORIENTATION AND RIGHT ANGLES -- D. MEASURING HEIGHTS -- E. LEVELLING -- CHAPTER 2 BACKGROUND TO THE DIOPTRA -- A. THE SIGHTING TUBE -- B. ASTRONOMICAL INSTRUMENTS -- C. THE HIPPARCHAN DIOPTRA -- D. THE MEASURING ROD -- E. GAMALIEL'S TUBE -- F. PHILO'S LEVEL AND STAFF -- CHAPTER 3 THE DIOPTRA -- A. THE TREATISES -- i. Hero of Alexandria -- ii. Julius Africanus -- iii. Anonymus Byzantinus -- iv. Al-Karaji -- B. THE SOURCES OF THE TREATISES -- C. THE MINOR SOURCES -- D. THE PLANE ASTROLABE -- E. THE STANDARD DIOPTRA -- F. HERO'S DIOPTRA -- G. LEVELLING -- H. OTHER SURVEYS -- I. CHRONOLOGICAL CONCLUSIONS -- J. TESTING A RECONSTRUCTED DIOPTRA -- CHAPTER 4 THE LIBRA -- A. THE EVIDENCE -- B. TESTING A RECONSTRUCTED LIBRA -- CHAPTER 5 THE GROMA -- A. GRIDS -- B. THE GROMA AND ITS USE -- CHAPTER 6 THE HODOMETER -- PART II PRACTICAL APPLICATIONS -- CHAPTER 7 MEASUREMENT OF THE EARTH -- CHAPTER 8 MOUNTAIN HEIGHTS -- CHAPTER 9 CANALS AND AQUEDUCTS -- A. EARLY CANAL SCHEMES -- B. AQUEDUCT SURVEYING -- C. THE NÎMES AQUEDUCT AND OTHERS -- D. THE CHALLENGES OF SURVEYING -- CHAPTER 10 TUNNELS -- A. CATEGORIES -- B. ALIGNMENT -- C. LEVEL -- D. MEETING -- E. INSTRUMENTS -- CHAPTER 11 ROMAN ROADS -- A. BASIC PRINCIPLES -- B. INTERPOLATION AND EXTRAPOLATION -- C. SUCCESSIVE APPROXIMATION -- D. DEAD RECKONING -- E. GEOMETRICAL CONSTRUCTION -- F. EXAMPLES -- CHAPTER 12 EPILOGUE -- PART III THE SOURCES -- THE TREATISES -- Hero of Alexandria: Dioptra -- Julius Africanus: Cesti I 15. , Anonymus Byzantinus: Geodesy -- Al-Karaji: The Search for Hidden Waters XXIII -- OTHER SOURCES -- The basic elements (Chapter 1) -- MEASURING HEIGHTS (CHAPTER 1.D) -- LEVELLING (CHAPTER 1.E) -- Background to the dioptra (Chapter 2) -- GAMALIEL'S TUBE (CHAPTER 2.E) -- PHILO'S LEVEL AND STAFF (CHAPTER 2.F) -- The dioptra (Chapter 3) -- THE SOURCES OF THE TREATISES (CHAPTER 3.B) -- THE MINOR SOURCES (CHAPTER 3.C) -- THE PLANE ASTROLABE (CHAPTER 3.D) -- The libra (Chapter 4) -- The groma (Chapter 5) -- The hodometer (Chapter 6) -- Measurement of the Earth (Chapter 7) -- Mountain heights (Chapter 8) -- Canals and aqueducts (Chapter 9) -- EARLY CANAL SCHEMES (CHAPTER 9.A) -- AQUEDUCT SURVEYING (CHAPTER 9.B) -- THE CHALLENGES OF SURVEYING (CHAPTER 9.D) -- Tunnels (Chapter 10) -- ALIGNMENT (CHAPTER 10.B) -- LEVEL (CHAPTER 10.C) -- Roman roads (Chapter 11) -- APPENDIX UNCERTAIN DEVICES -- A. THE U-TUBE LEVEL -- B. THE DIOPTRA ON A COIN -- C. DODECAHEDRONS -- D. THE 'CROSS-STAFF' -- E. SAGUI'S INSTRUMENTS -- BIBLIOGRAPHY -- INDEX.
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  • 2
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    Unknown
    Detroit, Mich. : Periodicals Archive Online (PAO)
    Technology and Culture. 14:4 (1973:Oct.) 616 
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  • 3
    facet.materialart.
    Unknown
    Detroit, Mich. : Periodicals Archive Online (PAO)
    Technology and Culture. 35:3 (1994:July) 453 
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 362 (1993), S. 664-664 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ROMAN aqueducts are a never-failing source of interest to archaeologists, engineers and laypeople alike. So it is astonishing that no general study has hitherto been published in English or (of anything like this quality) in any other language. Hodge triumphantly combines deep scholarship and lucid ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of engineering mathematics 20 (1986), S. 345-365 
    ISSN: 1573-2703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Technology
    Notes: Summary A mathematical model is proposed, apparently for the first time, for the onager, a late Roman catapult. The elastic energy of the machine is contained in a cylindrical bundle of twisted elastic cords, and, although each cord satisfies a linear stress-strain law, the geometry of the entire bundle causes a torque to be exerted on the moving arm of the onager which is a nonlinear function of the angular deflection of the arm. This torque is used in the nonlinear differential equations of motion which are integrated numerically. Experimental work is described which assists in determining the torque, and in addition supplies ranges for the projectiles for various masses, sling lengths and finger angles (parts of the release mechanism). Predictions from the mathematics are in reasonable agreement with experiment. A new calibration rule for the onager is proposed, based on the numerical integrations, which complements that known since classical times for the two-armed Greek palintone. Finally an appendix contains a discussion of the effect of a buffer on the motion.
    Type of Medium: Electronic Resource
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