FTL Neutrinos: On-Again!

CERN repeated its measurement, attempting to remove or compensate for some of the potential sources of error, and got the same speed for the neutrinos as the previous time… faster than light by just a smidgen.

Someone in the comment threads at TPM notes that GPS times are already compensated for relativistic differences. That sounds reasonable, but I’m afraid I have no way to check it out.

Meanwhile, TPM’s Carl Franzen provided us with a plate of hash, the worst article he’s published in his short career. They need a real science writer over there, someone who knows that time, distance and speed are not the same things, and who can assign proper units of measurement to each.

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Comments

  • karmanot  On Friday November 18, 2011 at 10:01 pm

    “someone who knows that time, distance and speed are not the same things” String Theory, String Theory! 🙂

    • Steve  On Saturday November 19, 2011 at 9:51 am

      karmanot, for String Theory, you need cats!

  • Bryan  On Friday November 18, 2011 at 11:30 pm

    The only way to be sure would be to have them return after an extreme distance, but that won’t work with neutrinos because they pass through everything.

    If there is an error, it will probably be discovered in the measurement of the distance between the sending and receiving points.

    • Steve  On Saturday November 19, 2011 at 9:58 am

      Bryan, my hypothetical money is still on the GPS satellite. It introduces a third relativistic frame of reference, and it seems quite possible to me that some small but stable aspect of using GPS to time the transit is the source of the problem.

      I won’t say I have “faith” in relativity, because that conveys the notion of something irrational. But I do think that theory has been tested in a whole lot of circumstances, and I would be surprised to see a genuine violation discovered.

    • karmanot  On Saturday November 19, 2011 at 6:55 pm

      Indeed! LOL

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