Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
US Coins Forum
>
GTG: Guess the Grade! US Trade Dollar
>
Reply to Thread
Message:
<p>[QUOTE="Coinchemistry 2012, post: 2043531, member: 28107"]I answered your question. Your question was predicated upon the assumption that only a large rotary wheel was used. I stated that I disagreed with that and posted a link where other methods and related process were discussed. So regardless of whether a large rotary wheel could reach into the devices, it does not follow that die polish lines never enter the devices if other alternative and/or additional methods were used. And that is why I referenced Burdette's book and the other thread. And the point of contention of this thread was whether die polish lines could ever cross into the devices, not a specific method.</p><p><br /></p><p><br /></p><p><br /></p><p>Touch up re-polishing of the die after every several strikes doesn't require as much effort as you seem to think it does. You wouldn't be doing the whole thing <i>de novo</i> necessarily.</p><p><br /></p><p><br /></p><p><br /></p><p>I am aware.</p><p><br /></p><p><br /></p><p><br /></p><p>Strawman arguments are always fun.</p><p><br /></p><p><br /></p><p><br /></p><p>On coins, die polish lines create the PL tendencies (i.e. mirror like quality) on the coins. This is because the raised die polish lines <u>SCATTER</u> light.</p><p><br /></p><p>Perhaps you have never heard of <u>diffuse reflection</u>, caused by the <u>scattering</u> of light.</p><p><br /></p><p><a href="http://www.rpi.edu/dept/phys/ScIT/InformationTransfer/reflrefr/rr_content/reflection_20.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.rpi.edu/dept/phys/ScIT/InformationTransfer/reflrefr/rr_content/reflection_20.html" rel="nofollow">http://www.rpi.edu/dept/phys/ScIT/InformationTransfer/reflrefr/rr_content/reflection_20.html</a>[/QUOTE]</p><p><br /></p>
[QUOTE="Coinchemistry 2012, post: 2043531, member: 28107"]I answered your question. Your question was predicated upon the assumption that only a large rotary wheel was used. I stated that I disagreed with that and posted a link where other methods and related process were discussed. So regardless of whether a large rotary wheel could reach into the devices, it does not follow that die polish lines never enter the devices if other alternative and/or additional methods were used. And that is why I referenced Burdette's book and the other thread. And the point of contention of this thread was whether die polish lines could ever cross into the devices, not a specific method. Touch up re-polishing of the die after every several strikes doesn't require as much effort as you seem to think it does. You wouldn't be doing the whole thing [I]de novo[/I] necessarily. I am aware. Strawman arguments are always fun. On coins, die polish lines create the PL tendencies (i.e. mirror like quality) on the coins. This is because the raised die polish lines [U]SCATTER[/U] light. Perhaps you have never heard of [U]diffuse reflection[/U], caused by the [U]scattering[/U] of light. [url]http://www.rpi.edu/dept/phys/ScIT/InformationTransfer/reflrefr/rr_content/reflection_20.html[/url][/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
US Coins Forum
>
GTG: Guess the Grade! US Trade Dollar
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...