Who is this strange new member - our 30,000th? And though there have been false accusations against me, https://www.physicsforums.com/showthread.php?t=89349&page=7 I have it on good authority that we do have an imposter. Could it be mattmns, rachmaninoff or Moonbear? How about Integral, z-component, or Tom? Maybe Greg... Or perhaps Zooby, Danger, or maybe even the return of Tribdog? There is a mystery to be solved.