Message:

<p>[QUOTE=&quot;-jeffB, post: 2933889, member: 27832&quot;]But this isn&#039;t a closed system at all. They&#039;re pumping <i>plenty</i> of energy through it. (Heck, think about turning silver-bearing rock into a lump of .999, then turning <i>that</i> into a PR70 coin, then &quot;toning&quot; the coin into a pile of silver sulfide, then refining that back into silver, then striking it...)</p><p><br /></p><p>What they <i>aren&#039;t</i> doing, I assume, is any kind of fine-grained process that would actually <i>put the silver back into the right place</i> on the coin being treated.</p><p><br /></p><p>IBM&#039;s push-atoms-around scanning-tunneling equipment can put individual atoms into individual spots, but you&#039;d spend millennia restoring a single coin that way. <a href="https://en.wikipedia.org/wiki/Molecular_beam_epitaxy" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Molecular_beam_epitaxy" rel="nofollow">Molecular-beam epitaxy</a> is very old technology, and can lay down single-atom-thick layers across something much larger than a coin, but it&#039;s overkill, too -- I&#039;m guessing that you could lay down a layer with convincing luster, but even a restored 1794 dollar wouldn&#039;t pay back your expenses, I think.</p><p><br /></p><p>Is this plasma process better than current dipping processes? Could be. I&#039;m watching with interest. (But <i>only</i> watching; still not bold/foolish enough to set up a tank of hydrogen indoors and start running it through RF discharges...)[/QUOTE]</p><p><br /></p>

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