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Differences between Persian Qanats and Roman Aqueducts: A Comparison by W.D. Schram MSc

This article provides an overview of the differences between Persian qanats and Roman aqueducts, covering their basic elements, tunnels, bridges, and users. It examines the physical geography, technology, and societal aspects of each system. Conclusions highlight the distinctive features of qanats and the current state of Roman aqueducts.

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Differences between Persian Qanats and Roman Aqueducts: A Comparison by W.D. Schram MSc

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  1. Differences between Persian qanats and Roman aqueducts A short explanation and a comparisson by W.D. Schram MSc

  2. Overview • Introduction on Roman aqueducts • Introduction about Persian qanats • Comparison Differences Persian qanats and Roman aqueducts

  3. Aqueducts: basic elements Differences Persian qanats and Roman aqueducts

  4. Aqueducts: tunnels A masonry channel inside a tunnel (Cave de Curé, Gier aqueduct, Lyon, France) Differences Persian qanats and Roman aqueducts

  5. Aqueducts: bridges The world known aqueduct bridge Pont du Gard, part of the aqueduct (50 km) of Nimes (France). Also represented on the banknotes of 5 euro Differences Persian qanats and Roman aqueducts

  6. Aqueducts: arcade Two aqueduct channels (70 and 88 km long, mainly subterranean) on top of a series of arches (Rome, Italy) Differences Persian qanats and Roman aqueducts

  7. Aqueducts: the users Local fountain (Gerasa, Jordan) Baths (reconstruction) (Xanten, Germany) Differences Persian qanats and Roman aqueducts

  8. The Roman empire Differences Persian qanats and Roman aqueducts

  9. Roman aqueducts: some 1500 Differences Persian qanats and Roman aqueducts

  10. Qanats: basic elements Differences Persian qanats and Roman aqueducts

  11. Qanats: from the air Persepolis Differences Persian qanats and Roman aqueducts

  12. Qanats: channel and shafts Qanat shaft (near Yazd) Shaft tops Differences Persian qanats and Roman aqueducts

  13. Qanats: construction Muqanni Clay rings for reinforcements Differences Persian qanats and Roman aqueducts

  14. Qanats: distribution 1 Differences Persian qanats and Roman aqueducts

  15. Qanats: distribution 2 Tehran (ca 1960 CE) Isfahan (1942 CE) Differences Persian qanats and Roman aqueducts

  16. Qanats: distribution 3 Tafilalt (Maroc) Qanats in Syria Differences Persian qanats and Roman aqueducts

  17. Qanats: in Europe 1 Madrid (Spain) = Madjira = place of qanats Near Selb and Asch (Germany) Differences Persian qanats and Roman aqueducts

  18. Qanats: in Europe 2 The qanat of Walferdange (Luxemburg) with stepped channel and access shafts Differences Persian qanats and Roman aqueducts

  19. Qanats: distribution worldwide Differences Persian qanats and Roman aqueducts

  20. Qanats: the users Place to scoop water Water distribution Differences Persian qanats and Roman aqueducts

  21. Storage Water storage site Entrance Differences Persian qanats and Roman aqueducts

  22. Qanats: works of art Qanat bridge (Kharanaq, Yazd) Ice house (Yazd) Differences Persian qanats and Roman aqueducts

  23. Comparison 1: Physical Geography Differences Persian qanats and Roman aqueducts

  24. Comparison 2: Technology Differences Persian qanats and Roman aqueducts

  25. Comparison 3: Societal Differences Persian qanats and Roman aqueducts

  26. Conclusions • Although there are similarities, qanats are quite different from roman aqueducts • Most striking: • The difference in the sources • The almost straight line of a qanat • Qanat(s) are often the only source of water • Almost all Roman aqueducts are out of use Differences Persian qanats and Roman aqueducts

  27. Problems ?! Tehran (2009 CE) Nonius Datus (150 CE) (Saldae, Algeria) Differences Persian qanats and Roman aqueducts

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