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Coins and Paper Money question: How are pennies made and what materials are used? Today's pennies (since 1982) are made from coin blanks made of 99.2 copper, with an outer plating of pure ... When does pennies made? What it's pennies made of? What are pennies made up of? How pennies were made in 1979? What are 2007...
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wiki.answers.com/Q/How_are_pennies_made_and_what_materi...
wiki.answers.com/Q/How_are_pennies_made_and_what_materials_are_used
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The U.S. Mint produces 1040 pennies per second, which adds up to 30 million per day. This is over two-thirds of all the coins produced by the U.S. Mint. ... In 1974, as a test, there were 1,579,324 Pennies made of pure Aluminum struck (produced) by the U.S. Mint. These were never circulated and most were later destroyed.
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lrs.ed.uiuc.edu/students/tsullivl/commoncents/PennyFact...
lrs.ed.uiuc.edu/students/tsullivl/commoncents/PennyFacts.htm
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1943 2.70 g 19 mm Steel with Zinc coating ... 1944 to 1946 3.11 g 19 mm 95.0% Copper and 5.0% Zinc & Tin (bronze mix) but made from cartridge casings and slightly off color...
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lrs.ed.uiuc.edu/students/tsullivl/commoncents/PennyComp...
lrs.ed.uiuc.edu/students/tsullivl/commoncents/PennyComposition.htm
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Why are pennies made of copper? ... I need a thorought report on "how are pennies made" I need thing such as manufacturing process, materials, impection report, properitie, etc. I am doing a research and I am an mechnical engineering student. Thank for your cooperation.
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www.finishing.com/164/72.shtml
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A penny is not what you think. Indeed, from 1783 to 1837, a cent was pure copper. But newer pennies are made mostly of zinc. Here's the history, according to the U.S. Mint:
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www.livescience.com/mysteries/070129_penny.html
www.livescience.com/mysteries/070129_penny.html
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One great benefit of this experiment is that the cost is literally pennies !! Before we begin, the coin is technically called a cent. Look at the reverse side ( ... So, the point is that pre-1982 pennies will have a different mass than pennies made after 1982. So, how about 'weighing' (determining the mass) of some pennies.
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www.1728.com/projects.htm
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