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Your search for 'dc_creator:( "Wartke, Ralf-B. (Berlin)" ) OR dc_contributor:( "Wartke, Ralf-B. (Berlin)" )' returned 31 results. Modify search

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Tools

(1,441 words)

Author(s): Wartke, Ralf-B. (Berlin) | Onken, Björn (Marburg/Lahn)
[German version] I. Ancient Near East and Egypt The tools of the Near Eastern cultures and Egypt comprised the most important types still used in similar designs and functions today. The use of natural objects as tools and their adaptation in order to improve their properties dates back to the Palaeolithic period (e.g. stone tools with various basic functions; increasing differentiation in relation to the qualities for particular usages). Improvements were made in handling (grip, mounting, shafts), the systematic exploitation of mechanical principles, e.g. axial mounting ( tournet…

Pitch

(852 words)

Author(s): Wartke, Ralf-B. (Berlin) | Burford-Cooper, Alison (Ann Arbor)
[German version] I. Ancient Orient and Egypt Pitch (also bitumen; asphalt) is a natural product of fossil origin and varying composition. Its use in the Ancient Orient mostly remained limited to the source regions in Mesopotamia, Ḫūzistān and the Dead Sea. Egypt did not have any noteworthy deposits of pitch, therefore pitch was irrelevant until the Ptolemaic period, and was then imported from Syria and Palestine as an agent for mummification (Mummies). Pitch, which is viscous, was rarely used unadulter…

Glas

(1,571 words)

Author(s): Platz-Horster, Gertrud (Berlin) | Wartke, Ralf-B. (Berlin) | Pingel, Volker (Bochum)
(ὕαλος oder ὕελος, vitrum) [English version] I. Methoden der Glasherstellung G. ist ein Gemisch aus Kieselsäure (Siliciumdioxid, Quarz oder Quarzsand) und Alkali (Soda, Natron oder Pottasche) als Flußmittel [2; 7; 8]. Da in der Ant. offenbar unbekannt war, daß Alkali das Gemenge wasserlöslich macht, ist nur G. mit genügend Kalk erhalten, der diese Reaktion aufhebt. Hersteller von Rohglas (ὑελέψης oder ὑαλοψός) wußten aus Erfahrung, welcher Sand (ψάμμος ὑαλικός) oder welche kalkhaltige Pflanzenasche das G. dauerhaft machte. Rohglas wurde bis in röm. Zeit nur in wenigen s…

Gold

(3,039 words)

Author(s): Riederer, Josef (Berlin) | Wartke, Ralf-B. (Berlin) | Pingel, Volker (Bochum) | Schneider, Helmuth (Kassel)
I. Allgemeines [English version] A. Gold und Goldvorkommen G. ist ein weiches, mechanisch gut zu verformendes und somit einfach zu Blechen und Drähten zu verarbeitendes Edelmetall, hat aber mit 1063°C einen relativ hohen Schmelzpunkt, der das Gießen erschwert. Es kommt in der Natur relativ selten vor, und zwar in Form von G.-Aggregaten im festen Gestein, aus dem es mit bergmännischen Methoden gewonnen wird, oder in Form von G.-Flittern oder -Körnern in sandigen Ablagerungen verwitterter Primärgesteine, …

Elfenbeinschnitzerei

(786 words)

Author(s): Wartke, Ralf-B. (Berlin) | Niemeyer, Hans Georg (Hamburg) | Prayon, Friedhelm (Tübingen) | Neudecker, Richard (Rom)
[English version] I. Vorderer Orient und Phönikien Elfenbein, d.h. Zähne von Wildschwein, Flußpferd und vor allem (afrikan. sowie asiat.) Elefant, war seit dem Neolithikum in der “Kleinkunst” als Werkstoff hochbeliebt. In der Br.- und frühen Eisenzeit entwickelten sich die bed. Werkstätten der syr.-phönik. Küstenstädte und daneben Ägyptens erkennbar eigene Stile. E.n fanden durch intensiven Handel weiteste Verbreitung und gehören fast regelmäßig zu den Tributen für die assyr. Könige. Das Repertoire umf…

Metallurgie

(2,593 words)

Author(s): Wartke, Ralf-B. (Berlin) | Giesen, Katharina (Tübingen) | Kohler, Christoph (Bad Krozingen) | Schneider, Helmuth (Kassel)
I. Alter Orient [English version] A. Metallgewinnung Metalle (= Met.) werden aus Erzen gewonnen (Verhüttung); Edel-Met.: Gold, Silber, Elektron; Grund-Met.: Kupfer, Zinn, Blei, Eisen. Der Anfang der M. dürfte in mineralogisch günstigen Regionen, vornehmlich in der Nähe der (Kupfer-)Erzlagerstätten Anatoliens zu suchen sein. Elemente der Pyrotechnologie sind schon aus akeramisch-neolithischen Siedlungen des frühen 7. Jt.v.Chr. nachweisbar, insbes. Produkte eines aus Kupfererz erschmolzenen Met. Durch Sc…

Ivory carvings

(904 words)

Author(s): Niemeyer, Hans Georg (Hamburg) | Wartke, Ralf-B. (Berlin) | Prayon, Friedhelm (Tübingen) | Neudecker, Richard (Rome)
[German version] I. Middle East and Phoenicia Ivory, i.e. tusks of the boar, the hippopotamus and particularly the (African as well as Asian)  elephant, was extremely popular from the Neolithic period onwards as a material in ‘craftwork’. In the Bronze Age and the early Iron Age, the important workshops of the Syrian-Phoenician coastal towns and also of Egypt developed styles that were recognizably their own. Ivory carvings (IC) were widespread through intensive trade and almost always formed part of t…

Glass

(1,832 words)

Author(s): Platz-Horster, Gertrud (Berlin) | Wartke, Ralf-B. (Berlin) | Pingel, Volker (Bochum)
(ὕαλος; hýalos or ὕελος; hýelos, vitrum) [German version] I. Methods of Glass Production Glass is a mixture of silicic acid (silicon dioxide, quartz or quartz sand) and alkali (soda, sodium bicarbonate or potash) as flux [2; 7; 8]. Since it was apparently unknown in antiquity that alkali makes the mixture water-soluble, only glass with sufficient lime to neutralize this reaction is preserved. Producers of raw glass (ὑελέψης; hyelépsēs or ὑαλοψός; hyalopsós) knew from experience which sand (ψάμμος ὑαλικός; psámmos hyalikós) or which calcareous plant ashes made the glass durable. Up i…

Toreutics

(1,585 words)

Author(s): Wartke, Ralf-B. (Berlin) | Niemeyer, Hans Georg (Hamburg) | Neudecker, Richard (Rome)
(τορευτικὴ τέχνη/ toreutikḕ téchnē; Lat. caelatura; literally 'chiseling', from τορεύς/ toreús, Lat. caelum, 'chisel') denotes the chasing and repoussé work of thin plates of metal, or else works in which chasing is combined with repoussé work to design relief work; repoussé work may be replaced by casts. [German version] I. The Ancient Orient and Egypt Toreutics designates primarily the productive technique by which metals (gold/electrum, silver, copper/bronze, lead, iron) were shaped in a cold state. The objects (plaques), usually thin, were forme…

Metallurgy

(2,957 words)

Author(s): Wartke, Ralf-B. (Berlin) | Giesen, Katharina (Tübingen) | Kohler, Christoph (Bad Krozingen) | Schneider, Helmuth (Kassel)
I. Ancient Near East [German version] A. Metal extraction Metals are extracted from ores (smelting). Precious metals: gold, silver, elektron; base metals: copper, tin, lead, iron. The beginnings of metallurgy can be found in mineralogically favourable regions, particularly near the (copper-)ore deposits of Anatolia. Elements of pyrotechnology have been identified in aceramic neolithic settlements of the early 7th millennium BC, in particular products of metallurgy based on the smelting of copper ore. The…

Gold

(3,476 words)

Author(s): Riederer, Josef (Berlin) | Wartke, Ralf-B. (Berlin) | Pingel, Volker (Bochum) | Schneider, Helmuth (Kassel)
I. General [German version] A. Gold and gold deposits Gold is a soft precious metal that can be shaped well mechanically and so can be worked easily into sheets and wires, but it has a relatively high melting point at 1063°C that makes casting difficult. It is relatively rare in nature where it is present in the form of gold aggregates in solid rock from which it is extracted through mining methods, or it is present in the form of gold particles or grains in sandy deposits of weathered primary rock, from…
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