Melting coins now naughty…

It seems that the solar experiments we did in the summer were just in time according to a CNN report today. Apparently the U.S. Mint has noticed that the penny is now a bullion coin and consequently have written some new regulations to disallow “recycling” of pennies and nickels. (When we did the experiment, I calculated that the 1c coin was worth about 1.2c in zinc.)

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