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rare-coin broker conned an elderly East Sider
"Reid Goldsborough" wrote in message ... On 11/17/2010 1:08 AM, Jeff R. wrote: Reid, find*one* - just ONE - individual with genuine experience and/or qualifications in metal working and/or metallurgy who agrees with your hypothesis. You ridiculed me for using the term "plastic deformation" to describe the process though which the surface metal of a coin is softened ....and I still do. ...and moved through whizzing, saying the physics of this is impossible. But this is the same term used to describe whizzing by Tony Clayton, a former physics teacher who maintains a Web site on coin metals. Now just a minute, Reid. How come you can cite Tony's status as "former physics teacher" as a sufficient guarantee of accuracy, yet you automatically dismiss my status as current engineering teacher as irrelevant? ..As he said: "What does occur is plastic deformation of the surface layers. This will result in surface metal being moved, in just the same way as drawing a knife across the surface will result in a scratch with the moved material forming a narrow raised area on each side." Sigh. You don't bother reading do you? Look again at the diagrams at the base of the "conclusions" page I wrote seven years ago, where this effect is demonstrated and explained. *HINT*: its a *micro* effect, yet you are claiming *macro* consequences. Allen Stockton, a coin doctor, someone who unlike you actually worked on coins BEFORE you made your grand conclusions about what happens when they're worked on, also says metal is moved. So he is also wrong. So what? So has PCGS Written by Rick Montgomery? LOL! ...in its book Coin Grading and Counterfeit Detection, Brian Silliman of NCS (Numismatistic Conservation Services) in his Numismatist column and the ANA in its book A.N.A. Grading Standards for United States Coins. Yes. You forgot to mention Rick Montgomery. Again. Why is that? Look Reid - coin graders and salesmen are not metallurgists. I don't know squat about grading US coins on the 70 point scale, and they plainly know just about the same about the mechanics of shaping metals (if they agree with you, that is). You're correct. This is all just my "hypothesis." Or was it what you said before, that all these people are just copying one another, and unlike you none of them has a metal shop? Ad infinitioticdum. Like talking to a brick wall and with the same intelligence. Bye. What? You're giving up again? Lacking endurance as the years creep by, eh Reid? Its such a shame that you cannot advance one single credible argument to suggest that whizzing is anything other than an abrasive process. I no longer expect an apology for your rudeness, (you're too rude for that), but I gladly accept your admission of defeat. Au revoir indeed. -- Jeff R. |
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