a proton? That might sound like a pretty simple question, but it turned out to have the potential to wreck a lot of modern physics. That's because different methods of measuring the proton's charge radius produced —and not just by a little bit. The answers were four standard deviations apart. But now, a new and improved measurement brings them into much closer alignment—though not quite close enough that we can consider the issue resolved.ARS TECHNICAThis story originally appeared on , a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED's...…a proton? That might sound like a pretty simple question, but it turned out to have the potential to wreck a lot of modern physics. That's because different methods of measuring the proton's charge radius produced —and not just by a little bit. The answers were four standard deviations apart. But now, a new and improved measurement brings them into much closer alignment—though not quite close enough that we can consider the issue resolved.ARS TECHNICAThis story originally appeared on , a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED's...WW…