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The art of kalai (kalhai or qalai) is the process of coating an alloy surface such as copper or brass by deposition of metal tin on it. [1] The word "kalai" is derived from Sanskrit word kalya lepa, which means "white wash or tin". [2]
The soil is mixed with ammonium chloride and water to produce a paste which is then rubbed onto a heated brass surface. The paste darkens the brass but not the silver inlay. The black patina is a mixture of zinc oxide and copper(II) oxide (Cu 2 O). It is the copper oxide that gives the patina its black color (zinc oxide is white).
The Thathera (literally meaning 'the beater', [1] also known as Thathrias [2]) is a Hindu and Sikh artisan caste in India, whose traditional occupation is the making of brass and copper utensils. [ citation needed ] In 2014, the craft of the Thathera community of Jandiala Guru was included in the UNESCO Intangible Cultural Heritage Lists .
Bronze weapon from the Mesara Plain, Crete. Copper came into use in the Aegean area near the end of the predynastic age of Egypt about 3500 BC. The earliest known implement is a flat celt, which was found on a Neolithic house-floor in the central court of the palace of Knossos in Crete, and is regarded as an Egyptian product.
A brass kamandalu, held by a sadhu.. Kamandalu (Sanskrit: कमण्डलु, kamaṇḍalu [1]), kamandal, or kamandalam is an oblong water pot, originating from the Indian subcontinent, made of a dry gourd or coconut shell, metal, wood of the Kamandalataru tree, [2] or from clay, usually with a handle and sometimes with a spout.
Islamic Golden Age brass astrolabe Brass lectern with an eagle. Attributed to Aert van Tricht, Limburg (Netherlands), c. 1500.. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, [1] but copper typically has the larger proportion, generally 66% copper and 34% zinc.
Brass cannons had become an all-important war tool by that time. Slowly as demand for brass utensils, especially for water carrying and storage, developed in this area and was supplied throughout the country from Rewari. The whole region lying at the border of Rajasthan and Haryana had scarcity of potable sweet water. There is no river and the ...
The baritone horn, sometimes called baritone, is a low-pitched brass instrument in the saxhorn family. [2] It is a piston-valve brass instrument with a bore that is mostly conical, like the smaller and higher pitched flugelhorn and tenor horn, but it has a narrower bore compared to the similarly pitched euphonium.