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MeasuringWorth is a free online service to calculate relative economic value over time using price indexes. It has data sets, charts, and comparators for prices in several currencies and economic time series for stock markets and the price of gold. The site's comparisons over time were used in over 200 academic works each year in 2018 and 2019. [1]
The opening of the Suez Canal in 1869 reduced the London delivery time of Tin from Malaya to match the three months delivery time for Copper from Chile. When the LME was founded in 1877 based on Copper and Tin trading, the exchange instituted the daily prompt date contracts to match the delivery times of those commodities. [9]
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The International Annealed Copper Standard (IACS) is a standard established in 1914 by the United States Department of Commerce. [1] It is an empirically derived standard value for the electrical conductivity of commercially available copper .
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Gold's relative value to copper has surged to its highest in more than a decade and its worth versus silver is the highest on record as the spread of coronavirus hammers metals with industrial ...
At any one time there might be two or three units of account in one region based on the local base, silver and sometimes gold coins, and each often expressed in L.S.D units in ratio 240:12:1. The Florentine gold florin , the French franc and the electoral rheingulden all became pounds (240 denari) of account.
Copper loss is the term often given to heat produced by electrical currents in the conductors of transformer windings, or other electrical devices. Copper losses are an undesirable transfer of energy , as are core losses , which result from induced currents in adjacent components.