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darsemnos
Penny Sorter Member
96 Posts |
 Posted - 01/11/2009 : 00:57:04
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Question:
Why is a silver eagle larger than a silver maple?
I have some of each, so I can actually compare. The eagle has a slightly larger diameter, like by 1.5-2mm. I cannot detect any difference in thickness.
I looked at wikipedia and both are supposed to be one troy ounce of silver. Also, both are darn near close to pure, close enough that the size difference should be imperceptible.
What gives?
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n/a
deleted
478 Posts |
Posted - 01/11/2009 : 08:15:18
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Silver Eagle: 40.60 mm 2.98 mm thickness
Silver Maple Leaf: 38 mm 3.29 mm thickness
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darsemnos
Penny Sorter Member
96 Posts |
Posted - 01/11/2009 : 21:16:19
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quote:
Originally posted by CuproNickle
Silver Eagle: 40.60 mm 2.98 mm thickness
Silver Maple Leaf: 38 mm 3.29 mm thickness
Those numbers indicate a volume of 3972 mm^3 for the eagle and 3731 mm^3 for the maple leaf, which means the eagle is still 6% larger. |
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natsb88
Administrator
USA
1850 Posts |
Posted - 01/11/2009 : 21:30:28
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| Actually I get 3858 mm^3 for the Eagle and 3731 mm^3 for the Maple. Difference of about 3% figuring the volume that way. However, that's only an estimation, since the coins are not perfect cylinders, but rather have raised images and lettering and reeded edges. You need to use water displacement to get a truly accurate measurement of the volume. |
Nate
The Copper Cave
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darsemnos
Penny Sorter Member
96 Posts |
Posted - 01/12/2009 : 01:12:41
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| You're right. I goofed on the calculation somehow the first time. |
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starwarsgeek171
Penny Hoarding Member
USA
651 Posts |
Posted - 01/12/2009 : 15:38:27
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| .999 eagle vs. .9999 Maple? |
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darsemnos
Penny Sorter Member
96 Posts |
Posted - 01/12/2009 : 16:18:46
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quote:
Originally posted by starwarsgeek171
.999 eagle vs. .9999 Maple?
That is a tiny difference. That would make up for only a fraction of a percent of any total volume difference. |
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starwarsgeek171
Penny Hoarding Member
USA
651 Posts |
Posted - 01/13/2009 : 18:54:54
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| That's why I put a question mark after my comment, yet what about the metals added for durability, etc.? Maybe different as well? |
starwarsgeek171 |
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Silver Eagle vs Silver Maple
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