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Orichalcum or aurichalcum / ˌ ɔːr ɪ ˈ k æ l k ə m / is a metal mentioned in several ancient writings, including the story of Atlantis in the Critias of Plato.Within the dialogue, Critias (460–403 BC) says that orichalcum had been considered second only to gold in value and had been found and mined in many parts of Atlantis in ancient times, but that by Critias's own time, orichalcum ...
The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...
The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury. Zinc, arsenic, and antimony were also known during antiquity, but they were not recognised as distinct metals until later.
Glass threads were wound around a bag of sand tied to a rod. The glass was continually reheated to fuse the threads together. The glass-covered sand bag was kept in motion until the required shape and thickness was achieved. The rod was allowed to cool, then finally the bag was punctured and the sand poured out and reused.
[197] [198] Egyptian blue (blue frit), calcium copper silicate CaCuSi 4 O 10, made by heating a mixture of quartz sand, lime, a flux and a copper source, such as malachite. [199] Already invented in the Predynastic Period of Egypt , its use became widespread by the 4th Dynasty . [ 200 ]
A staggering amount of gold was found in the tomb of Tutankhamun, the only ancient Egyptian royal burial site to have been found in a relatively intact state. [9] Ancient texts report the vast quantities of statutory gold, silver and bronze that was used in Egyptian temple ritual, but of these, only a single gold statue of the body of Amun ...
Cubit rod from the Turin Museum. Surveying and itinerant measurement were undertaken using rods, poles, and knotted cords of rope. A scene in the tomb of Menna in Thebes shows surveyors measuring a plot of land using rope with knots tied at regular intervals. Similar scenes can be found in the tombs of Amenhotep-Sesi, Khaemhat and Djeserkareseneb.
Sumerian and Egyptian artifacts of copper and bronze alloys date to 3000 BC. ... an alloy of copper and zinc, is of much more recent origin. ... Copper wire is used ...