At the recent Friam meeting, it was mentioned that a super-nova in a distant
galaxy had light and neutrinos arriving at the same instant.
-- Owen
On Sun, Sep 25, 2011 at 11:27 AM, <[email protected]> wrote:
> My superficial knowledge of the subject comes from an A in a grad class at
> Caltech on Relativity, long before GPS. No problem in measuring interval
> between events at the same place, with a relativistic correction. The issue
> here is synchronization of clocks at different points in space (CERN and
> Italy). This is doable, of course, but not trivial. Still hopin' Mr.
> Natural will enlighten me!
>
> Incidentally, most "explanations" of GPS are vaguely incorrect. You CAN'T
> directly measure the time a signal takes to get to you, sitting at a
> mountain lake, from a Teapot in the sky, because you can't synchronize your
> $199 Gelsons GPS unit. It doan really know when the signal was sent.
> There's a tricky little calculation involving the difference in arrival time
> at your station between calibrated signals from two located, synchronized
> Teapots. It does assume you are at one place at a given instant --
> oftentimes the case with me.
>
> GPS, like most things in this world, is much smarter than its
> interpreters!
>
> Peter Lissaman, Da Vinci Ventures
>
> Expertise is not knowing everything, but knowing what to look for.
>
> 1454 Miracerros Loop South, Santa Fe, New Mexico 87505,USA
> tel:(505)983-7728
>
>
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FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org
