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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 artifacts consist of a terracotta pot approximately 140 mm (6 in) tall, with a 38 mm (1.5 in) mouth, containing a cylinder made of a rolled copper sheet, which houses a single iron rod. At the top, the iron rod is isolated from the copper by bitumen , with plugs or stoppers, and both rod and cylinder fit snugly inside the opening of the jar.
The addition of a second metal to copper increases its hardness, lowers the melting temperature, and improves the casting process by producing a more fluid melt that cools to a denser, less spongy metal. [6] This was an important innovation that allowed for the much more complex shapes cast in closed molds of the Bronze Age.
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 ...
Elsewedy Electric Co S.A.E. is an Egyptian multinational electrical company. It was founded in 1938 by the Elsewedy family. The company manufactures and sells integrated energy products and services in seven energy segments: Electrical cables and accessories, electrical products, telecommunications, transformers, wind energy generation, energy measurement and management, engineering ...
The inscribed value is of 3 deben, representing a unit of 29 grams (1.0 oz), likely the earliest copper deben. [2] Based on this evidence, it was argued recently that copper and gold deben were used since Early Dynastic Period in ancient Egypt.
Mineral-insulated copper-clad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. The name is often abbreviated to MICC or MI cable, and colloquially known as pyro (because the original manufacturer and vendor for this product in the UK was a company called ...
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.