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orionstarman
Penny Pincher Member
USA
106 Posts |
 Posted - 03/26/2009 : 20:54:08
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As you all know one way to tell an 1982 copper penny from a 1982 zinc penny is to drop it and listen to the sound. The copper pennies have a clear high pitch ring to them and the zincs just kind of go clunk. So, what is it about copper pennies that lets them sing the way they do?
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Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.--Benjamin Franklin
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HoardCopperByTheTon
Administrator
USA
6807 Posts |
Posted - 03/26/2009 : 22:54:25
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It's cause they are made of "real" metal.. like silver coins.  |
If your percentages are low.. just sort more. If your percentages are high.. just sort more.
Now selling Copper pennies. 1.6x plus shipping. Limited amounts available. |
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vrbsroma
Penny Collector Member
394 Posts |
Posted - 03/27/2009 : 08:33:17
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| Anyone have a... more scientific... answer? ;) |
As far as I know, it is stated "In God We Trust" on the US dollar. How can I trust this currency if I do not believe in God?
Possession is nine-tenths of the law.
When I give my two cents, they're always copper! |
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AGgressive Metal
Administrator
USA
1937 Posts |
Posted - 03/27/2009 : 10:59:02
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| Aren't bells and musical instruments made of brass or bronze, ie, mostly copper? I guess it has better "vibration properties." Thats only barely more ... uh, "scientific." |
And he that hath lyberte ought to kepe hit wel / For nothyng is better than lyberte / For lyberte shold not be wel sold for alle the gold and syluer of all the world.
-Caxton's edition of Aesop's Fables, 1484 |
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Computer Jones
1000+ Penny Miser Member
USA
1112 Posts |
Posted - 03/28/2009 : 13:52:04
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It's Magic?
Probably has something to do with the resonant frequency of the crystalline structure of the element or alloy used. |
There's profit if you melt things!!
8{> |
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daviscfad
1000+ Penny Miser Member
USA
1664 Posts |
Posted - 03/28/2009 : 16:24:46
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| The average person cant even tell the difference i dont think. I tried to show my aunt and uncle the difference and they both said no difference. i said you guys cant hear |
Inquiring minds want to know |
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vrbsroma
Penny Collector Member
394 Posts |
Posted - 03/29/2009 : 19:29:00
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quote:
Originally posted by daviscfad
The average person cant even tell the difference i dont think. I tried to show my aunt and uncle the difference and they both said no difference. i said you guys cant hear
90% halves have a very distinct sound, and the 40% ones less so, but still noticeable. Copper I can't tell the difference. I weight my 82's. |
As far as I know, it is stated "In God We Trust" on the US dollar. How can I trust this currency if I do not believe in God?
Possession is nine-tenths of the law.
When I give my two cents, they're always copper! |
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knibloe
1000+ Penny Miser Member
USA
1066 Posts |
Posted - 03/30/2009 : 18:51:56
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| I cannot sort 82's by sound, but I can tell by sound when there is canadian in the bunch. They make a distinctive sound when they land on a pile of LMC. |
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daviscfad
1000+ Penny Miser Member
USA
1664 Posts |
Posted - 03/30/2009 : 19:37:56
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| I was talking about the coppers. I can tell i guess it just takes practice. It can fall anyway or how and i can still tell the difference |
Inquiring minds want to know |
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Copper Catcher
Administrator
USA
2092 Posts |
Posted - 03/31/2009 : 21:42:12
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| The singing sound...Way back when slot machine had real coins fall out on the few occasions I'd go to Vegas I'd love to play the half machines. I could always tell when a silver or silver clad dropped out into the hopper. I love that sound! |
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ScottyTX
Penny Hoarding Member
USA
508 Posts |
Posted - 04/01/2009 : 15:21:05
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I hand sort my pennies, so telling the 82's apart has become an art form. First of all, 95% of the time I can tell just by looking at it if its zinc or not. The zinc coins have a copper plated effect look to them. Secondly, if I cannot tell by looking a quick drop on the end table lets me know right away. I'm thinking the densities may play a part in it, but I like the real metal approach, just not sure why that is just yet, it has me thinking anyways!!
Scotty |
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maoguinn
Penny Pincher Member
USA
118 Posts |
Posted - 04/01/2009 : 20:37:24
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I hand sort my pennies also. I just flick the 82's up in the air with my thumb. The coppers make a ringing sound, the zincs nothing.
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oober
1000+ Penny Miser Member
USA
1304 Posts |
Posted - 04/01/2009 : 21:11:39
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This is actually how I sort all of them, I unroll a box, throw it up in the air, I pick up the ones that sound better...
Anyone want to but pennies from me, I run 98.5% copper in my area of the country... I have lots...
Actually my ears probably too trashed to tell the difference but I will check it out next time. Thanks. |
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Nickelless
Administrator
USA
5580 Posts |
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orionstarman
Penny Pincher Member
USA
106 Posts |
Posted - 04/02/2009 : 18:54:37
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quote:
Originally posted by Nickelless
Getting a Ryedale would be the easiest way to tell the coins apart
Not doing enough volume to justify the cost yet. So, I guess I'll just have to keep dropping the 82's listen to them sing. |
Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.--Benjamin Franklin
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Copper pennies sing
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