Search results
Results from the WOW.Com Content Network
Laguna Copperplate Inscription. The Laguna Copperplate Inscription (Filipino: Inskripsyón sa binatbát na tansô ng Laguna) is an official acquittance (debt relief) certificate inscribed onto a copper plate in the Shaka year 822 (Gregorian A.D. 900). It is the earliest-known, extant, calendar-dated document found within the Philippines.
Production trends in the top five copper-producing countries, 1950-2012. This is a list of countries by mined copper production. Copper ore can be exported to be smelted so that a nation's smelter production of copper can differ greatly from its mined production. See: List of countries by copper smelter production.
In the US, more copper is recovered and put back into service from recycled material than is derived from newly mined ore. Copper's recycle value is so great that premium-grade scrap normally has at least 95% of the value of primary metal from newly mined ore. [79] In Europe, about 50% of copper demand comes from recycling (as of 2016). [80]
The current custodians of the copper plate claim the Sikh guru visited the Kapal Mochan temple two times, with the visits taking place in 1679 and 1688 respectively.: 240–242 According to them, while the Guru gifted an inscribed copper plate in 1679, he also gifted an illuminated Hukamnama document during his 1688 visit to the premises.
Copper electroplating. Copper plating on aluminium. Copper electroplating is the process of electroplating a layer of copper onto the surface of a metal object. Copper is used both as a standalone coating and as an undercoat onto which other metals are subsequently plated. [ 1 ] The copper layer can be decorative, provide corrosion resistance ...
Copper sheathing. Copper sheathing is a method for protecting the hull of a wooden vessel from attack by shipworm, barnacles and other marine growth through the use of copper plates affixed to the surface of the hull, below the waterline. It was pioneered and developed by the Royal Navy during the 18th century.
The Kollam (Quilon) Syrian copper plates, also known as the Kollam Tarisappalli copper plates, document a royal grant issued by Ayyan Adikal, the chieftain of Kollam, to a Syrian Christian merchant named Mar Sapir Iso in Kerala, India. The inscription is engraved on six copper plates in Old Malayalam or early Middle Tamil, using Vattezhuthu ...
The Thomas of Cana copper plates feature heavily in the history and traditions of the Knanaya community in Kerala. According to the community's traditional origins, Thomas of Cana, a Syrian merchant led a group of 72 Jewish-Christian immigrant families, a bishop named Uraha Mar Yausef, and clergymen from the Middle East to settle in Cranganore, India in the 4th century (some sources place ...