<div dir="ltr"><div dir="ltr"><font size="4">One correction, I said "they could get angstrom (10^-9 meter) level spatial resolution" but it's <span class="gmail_default" style="font-family:arial,helvetica,sans-serif"></span>better than that because an angstrom<span class="gmail_default" style="font-family:arial,helvetica,sans-serif"> is actually 10^-10 meters not 10^-9.</span></font><div><span class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4"><br></font></span></div><div><span class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">John K Clark</font></span></div></div><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>
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