Wood Connection Techniques in Comparison
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IN POSEIDONS REICH XXI Abstracts Denis Averdung Chair meets ship - Wood Connection Techniques in Comparison Wood was one of the most important furniturebuilding and cartbuilding in the materials in antiquity. Houses, carts, tools Mediterranean from Bronze Age to Iron and all different kind of things were partly Age. The consideration is, if the techniques or in general made of it. Wooden objects for very different objects give some seldom survived till modern times. This answers for the transition from sewn boats paper is concerned to compare connection, to ships with mortise and tenon joints. techniques in shipbuilding IN POSEIDONS REICH XXI Abstracts Luka Bekić and Roman Scholz Fotobasierte Dokumentationsmethoden in der limnischen und maritimen Archäologie, A Case Study of a Shipwreck off Veruda Island Eine neuere Methode wird unter dem Documentation Methods: A Case Study of Begriff Structure from Motion (SFM) a Shipwreck off Veruda Island) zur zusammengefasst und findet in den letzten Weiterentwicklung der SFM-Methode. Im Jahren zunehmend seinen Weg in die Rahmen erster Voruntersuchungen wurden Bodendenkmalpflege. Dieses, allein auf Testdaten, die bei Taucharbeiten im Bilddaten gestützte, Aufnahmeverfahren Mittelmeer und der Ostsee gewonnen ermöglicht eine relativ problemlose wurden, mit zwei SFM-Programmen Erzeugung von 3D-Modellen, mit denen gerechnet. Sowohl die kommerzielle anschließend sehr genaue Zeichnungen Software aSPECT 3D der Firma ArcTron, und Videoanimationen erstellt werden als auch die kostenlose Programmlösung können. Erste Tests in der Praxis haben VisualSFM lieferte verwendbare gezeigt, dass diese Methode auch unter Ergebnisse. Wie zu erwarten war, ist die Wasser einsetzbar ist. Structure from Erzeugung brauchbarer Bilddaten bei Motion wird in Zukunft zu einer enormen schlechten Sichtverhältnissen in der Ostsee Verbesserung der Forschungsarbeiten im (Sicht unter 1,5 Meter) eine große Unterwassersektor beitragen, da damit Herausforderung. Es zeigt sich, dass im gerade komplexe, dreidimensionale Vergleich zum Mittelmeer mit Sichtweiten Objekte gut zu erfassen sind. weit über 5 Metern, eine größere Anzahl Darüber hinaus bietet die Methode auch an Bildern für die Erstellung eines Models für Fundplätze in großer Tiefe, die für den in der Ostsee benötigt werden. Da dies die Forschungstaucher nur kurze Arbeitszeiten Arbeitszeit für den Fotografen unter zulassen, erstmals eine zufrieden stellende Wasser deutlich erhöht, wird im Rahmen Lösung. Die Qualität dieser Daten zeigt, dieses Projektes auch die Verwendung von das SFM grundsätzlich auch unter Wasser Videodaten getestet und für den eingesetzt werden kann. Das Potenzial Unterwassereinsatz angepasst. auch für andere Anwendungen, z.B. dem Im Vergleich zu bislang üblichen Überwachen von Veränderungen an Dokumentationsmethoden sind die Unterwasserbauten, kann nicht groß genug gerechneten Modelle um einiges genauer. eingeschätzt werden. Mit Hilfe der Im Rahmen dieses Beitrages werden die besseren Aufnahme der in situ Situation derzeitigen Erfahrungen und Ergebnisse des Objektes ist es nun möglich, selbst dieser Forschungsarbeit und der weitere komplexe Situationen für die weitere Projektplan vorgestellt. Dabei wird auch Bearbeitung zu dokumentieren. auf eine optimierte Datengewinnung bei Das International Centre for Underwater Tauchgängen und die zu verwendende Archaeology in Zadar, die Römisch- Ausrüstung eingegangen. Da gerade diese Germanische Kommission in Frankfurt a. Faktoren entscheidend für die Qualität der M. und die Hochschule für Technik und Modelle sind, wird diesem Aspekt in der Wirtschaft Dresden arbeiten derzeit an weiteren Untersuchung eine wichtige einem Projekt (The Analysis of Modern Bedeutung beigemessen. IN POSEIDONS REICH XXI Abstracts Mike Belasus et. al. Between North Sea and Norwegian Sea – Interdisciplinary Studies on the trade of the Hanse in the North Atlantic The German Leibniz Association founds archaeologist, a historian, an archaeo- the Project “Between the North Sea and the zoologist and a ship archaeologist. Norwegian Sea-Interdisciplinary studies on The basic research questions for the team the trade of the Hanse in the North are: Atlantic”. It started in February 2015 at the ― How was the trade organised in the German Maritime Museum and will last homeports and the ports of call? for three years. ― How were the merchants connected to The project is focussing on the trade of each other? German merchants with the North Atlantic ― How were the ships build that could sail islands of Faroe, Shetland and Iceland, the open North Atlantic? which was dominated by merchants from ― Had the North Atlantic trade an impact Bremen and Hamburg between the late 15th on shipbuilding or had the development century and ca. 1700. The main trade items in shipbuilding an impact on the trade? were stockfish and sulphur. ― Who consumed what goods and why? Compared to other regions the Hanseatic ― What was the nature of the impact of League’s trade with the North Atlantic these long-term trading relations on the islands was less extensive and important. islands societies? Still the presence of German merchants at their North Atlantic destinations had a Natascha Mehler major impact on the islands economy as Christian Küchelmann well as their social and cultural life. Bart Holterman Only an interdisciplinary approach allows Mike Belasus a thorough analysis of the relationship The German Maritime Museum between merchants and islanders. For this reason, a researcher team has been assembled consisting of a land IN POSEIDONS REICH XXI Abstracts Olivier Berger How can we better preserved the finds and make underwater archaeology more accessible to the public? We are developing the idea of how to keep involve the public in an underwater project visible artifacts in situ and display them in are rare, and so many times they stay in a an underwater museum. This concept has scientific form, without publications or been our main focus for more than ten displays to the public. years. Consequently the underwater excavation The challenges of complicated needs a budget that includes professional preservation, conservation of the objects in conservation, restoration and curatorial the natural but sometimes hostile management. Raising a lab with environment combined with the technical professional restorers and specialized limits to display artifacts underwater and equipment must be set up before any the considerable cost to realize a museum excavation and the costs have to be part of project under the sea, are unfortunately the the total budget from the beginning. Too reality. often neglected, the conservation and The stabilization and conservation restoration of the underwater artefact is a treatment are a necessary requirement real challenge on each excavation project. which keeps the objects hidden for In the last few years two projects have considerable periods of time. Some been done successfully with an “exhibition projects have been done in the past with concept", one about sunken cities in Egypt displays like show room-laboratories, open and another one about the Anticythera ship to the public, where treatment baths were wreck. like aquariums. But the opportunities to IN POSEIDONS REICH XXI Abstracts Massimo Capulli In Situ Preservation: An Archaeological and Engineering Project in the Upper Adriatic Sea Underwater archaeological heritage is technology. The video collected from exposed not only to natural environmental underwater cameras installed on the metal stresses, but also is threatened by human protective structure, and by surface activity. As a matter of fact, both cameras placed on a buoy in the vicinity of commercial fishing and recreational diving the site, are sent to a management and have caused considerable damage to processing system. This system, several major wrecks in the northern autonomous with respect to its power Adriatic Sea. The Archaeological supply, is the central node for video Superintendence of Friuli Venezia Giulia acquisition and recording. Part of the and of Veneto have thus initiated an images are radio-transmitted to a remote interdisciplinary collaboration with the server that is in charge of their distribution, University of Udine, involving the in order to permit a virtual visit of the site Department of History and Preservation of to remote visitors, as well as to identify Cultural Heritage, and the Department of potential threats that can be later Electrical, Management and Mechanical investigated with the help of the recorded Engineering, in order to develop a project video. The necessity of a stand-alone that has as its primary objective the system on the buoy and the distance from protection of underwater sites by both the coast impose stringent technological surface and underwater video surveillance. constraints on the efficiency of processing It was also decided to start an experimental and communication. These aspects trial on the wrecks Caorle 1 (I a.C.) and constitute the main technological Grado 2 (III a.C.), with the intention to challenges of the project. monitor the sites remotely using the same IN POSEIDONS REICH XXI Abstracts Deborah Cvikel The Akko Tower Wreck (Israel): A multidisciplinary research project based on underwater archaeology During the 18th and 19th centuries, the city wooden objects, stones, bricks, and of Akko (St. Jean d’Acre), with its ceramic tiles. harbour, was considered the key to the This multidisciplinary research project East, and was the centre of several combines underwater archaeology,