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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> extropy-chat-bounces@lists.extropy.org [mailto:extropy-chat-bounces@lists.extropy.org] <b>On Behalf Of </b>john clark<br><b>Subject:</b> Re: [ExI] More on Neutrinos<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=top style='padding:0in 0in 0in 0in'><p class=MsoNormal style='margin-bottom:12.0pt'>On <b>Fri, 9/30/11, spike <i><<a href="mailto:spike66@att.net">spike66@att.net</a>></i></b> wrote:<br><br><o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>>>…</span><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>"To compare neutrinos to electrons and protons assumes they have mass. If they do not have mass, then they must be going exactly at c. If they do have mass, they must be going slower. Otherwise, our understanding of physics is all wrong." </span><o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D'>>…</span>A neutrino must have mass but not necessarily real mass<span style='color:#1F497D'>…</span> so if a neutrino is moving faster than light and has real energy it must have an imaginary mass;and thus the faster it goes the less energy it has<span style='color:#1F497D'>…</span><o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Ja, I have done that derivation, but the whole imaginary mass thing just gives me the heebies. I am struggling to not be such a physics church lady however, keeping an open mind.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The imaginary mass notion comes up in gravitational derivations as well. I recall from a long time ago trying to figure out the shape of the event horizon if you have two black holes of ten solar masses each, co-orbiting at 1 AU. Now imagine a particle coming in from far away along a line about which the two black holes co-orbit. I vaguely recall some interesting consequences of that thought experiment. I need to fish it out of my green notebooks. It’s something like you can use emission of imaginary mass particles to balance the energy… oy, it has been so long.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='margin-left:30.0pt'><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>>>…</span><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> "Oh this is exciting</span>"<o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> </span><br><span style='color:#1F497D'>>…</span>Yes, but if it turns out that this was all caused because somebody forgot to convert inches to centimeters or something I'm going to be pissed<span style='color:#1F497D'>…. </span>John K Clark<o:p></o:p></p></td></tr></table><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I would have dismissed it as an error long before now had it been anyone but CERN. Those guys have buttloads of credibility, and you can be sure they don’t want to waste any of it. I can imagine they checked and rechecked a dozen times before anyone was allowed to say anything. Even if it turns out to be an error, the error itself is likely to be highly educational at this point.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>spike<o:p></o:p></span></p></div></body></html>