where did 3d printing originate



the mark of history the incredible ancientsumerian cylinder seals the ancient sumerian cylinder seals are consideredwithout a doubt some of the most interesting objects ever recovered from ancient mesopotamia. a cylindrical seal is a small object decoratedwith images, words, or in some cases both, engraved on its surface in an intricate way.


where did 3d printing originate, cylinder seals are important to scholars sincethey often tell a story about a specific timeline and civilization. the ancient sumerian cylinder seals have lefta true mark on history. ancient sumerian cylindrical seals were appliedby rolling them onto fresh clay, which left


behind the impression. when the clay dried, the image was reflectedon its surface. these stamps were used in ancient sumer fora variety of purposes, including commercial transactions, decoration, and correspondence. the cylinder seal was considered as an extremelyimportant part of daily life in ancient mesopotamia. cylinder seals were known as kishib in sumerianand kunukku in akkadian and were used by everyone, from royals to slaves. the seals were made by a �sealcutter�known as a burgul in sumerian and as a purkullu in the akkadian language


the images left behind by the seals on claysurfaces were quite complex and beautiful. cylindrical seals were used by cultures fromthe ancient near east, including the sumerians, akkadians, hittites, and persians. according to experts, these intricate objectsoriginated in the late neolithic period, sometime around 7600-6000 bce, in modern day syria. there are some scholars who argue that cylinderseals originated in sumer, modern day iraq. the sumerian cylindrical seals were usuallycreated of stones (sometimes semiprecious stones) of different types. the ancients utilized amethyst, obsidian,hematite among other elements.


however, experts note that other materialssuch as glass, ceramics, gold, silver, wood, bone and ivory were also used in ancient timesto produce these objects. apart of being considered symbols of statusand amulets, ancient sumerian cylindrical seals also had other practical uses. they were used to sign documents written onclay tablets. by using a stamp to make an impression onthe surface of a fresh clay tablet, an individual could certify that the document was genuine. this need to authenticate the documents occurredwith the increase of bureaucracy that took place in mesopotamia, especially in the southernparts, where it was more complex, throughout


the iv millennium bc. in business and commerce, cylindrical sealswere used to certify that stored goods were not tampered with or stolen. in this way, we find impressions made by cylindricalseals on clay used to seal storage jars and on doors of warehouses in ancient sumer. the design of the sumerian cylindrical sealshas always aroused great interest among experts, mostly because of the intricate carvings coveringvery diverse subjects. as noted by experts, the motifs were usuallyfocused on three main motifs: combat, banquets and religious themes.


on their surface, we can see deities, humanbeings, plants, animals and religious iconography. among other designs that can be observed onthe cylindrical seals are geometric patterns and inscriptions in cuneiform script. as noted by ancient.eu, there are two stylesof cylinder seal: the uruk-style and the jemdet nasr-style which refer to the motifs usedand the way the seals were carved. authors megan lewis & marian feldman commenton this, writing: the uruk-style seals show animals and figuresdepicted in an exceptionally naturalistic fashion, suggesting that the seal carverswere aiming for expressive clarity. the motifs include ritual narratives involvingtemples, boats and offerings to gods, as well


as depictions of the natural world in hierarchicalarrangements. they are skillfully cut, detailed, and theircomposition tends to be balanced and aesthetically pleasing. the jemdet nasr-style seals are less detailedthan uruk-style seals and are characterized by the heavy use of drills and cutting discs,which produce round and linear marks respectively. common motifs from the jemdet nasr-style includewomen with pigtails involved in domestic labor and herds of animals in front of temples (4). if we take a look at the archaeological recordwe will find that archaeologists have discovered as many cylindrical seals as clay tabletson which they were printed.


where did 3d printing originate


there are numerous cylindrical seals in museumsaround the world. the baghdad museum, for example, has a collectionof 7,000 cylindrical seals, although most of them were looted when baghdad fell intothe hands of us troops in 2003. these valuable archeological pieces have notyet been recovered.


where did 3d printing originate Rating: 4.5 Diposkan Oleh: PaduWaras