moleman (Mar 25, 2001 01:34 a.m.):
Drinkingbuddy (Mar 24, 2001 12:06 a.m.):
Ok, I don't know much about coolers and how they are made, etc. But consider this... Pennies before 1982 were 90% copper. How many do you think it would take for a standard heatsink if they were melted down? 500 at the most? So that's 5 bucks. Why are they so expensive then???
isn't the core of pennies zinc?
I'm assuming you are referring to U.S. "pennies" (I know a lot of you guys are from the U.K....If I recall right you have a "Penny" coin in England, as well. World coinage isn't my strong suit, but I used to collect U.S. coinage years ago)
U.S. one cent coin compositions;
1793 to 1942 (all) 95% copper , 5% zinc
1943 steel, zinc plated
1944 to 45 they used recycled ammo shell casings from the war, can't remember the exact composition off the top of my head
1946 to 1982 1/2 Back to 95% copper, 5% zinc. In the middle of the year, they changed this to;
1982 1/2 to date Zinc core, copper/zinc plated.
Please note anything older than 1959 is of more "worth" to a numismatist (coin collector) than the copper it's made from. If you really intend to smelt a bunch of pennies, there isn't a lot of "collectable coins" minted from 1960 to 81. There's a couple, but you have to know what to look for, and they're pretty rare.