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Re: Particle Physics

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Am 22.04.2016 14:14, schrieb Odd Bodkin:

>> But after all, you must not leave out the units for speed as well, since
>> you can only adjust the numbers, but cannot leave out the associated
>> dimensions (length/time interval).
>>
>> Since '1' is a simple number, it has no dimension. But c HAS dimensions,
>> which are left out for no obvious reasons.
>
> What you have encountered is something you can look up: "natural units".
>
> It's really not very complicated. In reality, all it is, is the
> recognition that the units of meters and seconds are historical
> accidents. Meters arose from some arbitrary division of the
> circumference of the Earth by the French, and seconds arose from some
> arbitrary division of the length of the day by the Babylonians. There is
> no special significance to them. So the question is whether there is a
> more "natural" system of units where length and time can be measured
> with the same unit (and this is indeed very possible), and then of
> course in this system of units, *the value of c is 1 and dimensionless*.
>

I regard this behaviour as disgusting!

I cannot real see how physicists justify to sweep the dimensions of a 
unit under the rug.

You may call the *numbers* random human choice. But 1 lightsecond per 
second as value of c is certainly possible.

BUT now you have a circular definition of the dimensions of the type 
length, since c is contained twice in the statement above:

- once in the term light-second
- which is used to make a statement about the value of c

Now the question: how long is a lightsecond ?

It's roughly 300.000.000 meters.

So: how long is a meter?

It's roughly 1/300.000.000 of a light second.


TH

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Particle Physics Carl Susumu <numbernumber1212@gmail.com> - 2016-04-21 17:09 -0700
  Re: Particle Physics Gary Harnagel <hitlong@yahoo.com> - 2016-04-21 19:42 -0700
    Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-22 06:42 +0200
      Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-22 07:14 -0500
        Re: Particle Physics David Fuller <fuller.david@hotmail.com> - 2016-04-22 07:01 -0700
        Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-22 19:49 +0200
          Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-22 13:06 -0500
            Re: Particle Physics Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-04-23 01:37 +0200
          Re: Particle Physics Tom Roberts <tjroberts137@sbcglobal.net> - 2016-04-22 13:35 -0500
            Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-22 22:29 +0200
              Re: Particle Physics Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-04-22 23:32 +0200
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-23 06:15 +0200
                Re: Particle Physics JanPB <filmart@gmail.com> - 2016-04-22 22:25 -0700
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-23 23:18 +0200
                Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-24 13:55 -0500
              Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-23 08:33 -0500
                Re: Particle Physics Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-04-23 15:53 +0200
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-23 20:36 +0200
                Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-24 13:59 -0500
              Re: Particle Physics Tom Roberts <tjroberts137@sbcglobal.net> - 2016-04-23 16:43 -0500
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-24 07:16 +0200
                Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-24 14:02 -0500
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-25 06:55 +0200
                Re: Particle Physics Odd Bodkin <bodkinodd@gmail.com> - 2016-04-25 06:07 -0500
                Re: Particle Physics Thomas Heger <ttt_heg@web.de> - 2016-04-26 22:24 +0200

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