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2. Fort Lauderdale, Florida - Wikipedia

   en.wikipedia.org/wiki/Fort_Lauderdale,_Florida

   Fort Lauderdale (/ ˈ l ɔː d ər d eɪ l / LAW-dər-dayl) is a coastal city located in the U.S. state of Florida, 30 miles (48 km) north of Miami along the Atlantic Ocean.It is the county seat of and most populous city in Broward County with a population of 182,760 at the 2020 census, [7] making it the tenth-most populous city in Florida.

3. Coinage metals - Wikipedia

   en.wikipedia.org/wiki/Coinage_metals

   Pre-1992 British pennies were made of 97% copper; but as of 2008, based on the price of copper, the value of a penny from this period is 1.5 new-pence. Modern British pennies are now made of copper-plated steel. Cupronickel, a base metal alloy with varying proportions of copper and nickel, was introduced as a cheaper alternative for silver in ...

4. Gold plating - Wikipedia

   en.wikipedia.org/wiki/Gold_plating

   Gold plated - gold layer thickness greater than or equal to 0.5 micron; Heavy gold plated / Vermeil - gold layer thickness greater than or equal to 2.5 micron; Gold plated silver jewellery can still tarnish as the silver atoms diffuse into the gold layer, causing slow gradual fading of its color and eventually causing tarnishing of the surface ...

5. Gold coins stolen from 18th century shipwreck off Florida ...

   www.aol.com/gold-coins-stolen-18th-century...

   In 2015, members of the Schmitt family, working as contracted salvage operators for a company called "1715 Fleet - Queens Jewels," uncovered 101 gold coins worth $4.5 million, FWC said.

6. Sacagawea dollar - Wikipedia

   en.wikipedia.org/wiki/Sacagawea_dollar

   The composition selected for the new coin included a cladding of manganese brass (containing about 77% copper, 12% zinc, 7% manganese, and 4% nickel) over a pure copper core. [4] This composition was chosen because it would give the coin a distinctive golden color while being electromagnetically identical to its predecessor, the copper-nickel ...

7. Copper electroplating - Wikipedia

   en.wikipedia.org/wiki/Copper_electroplating

   Excluding the continuous strip plating industry, copper is the second most commonly-plated metal after nickel. [6] Copper electroplating offers a number of advantages over other plating processes, including low metal cost, high-conductivity and high-ductility bright finish, and high plating efficiency.