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Groups > sci.physics.relativity > #382086

Re: Particle Physics

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity
Subject Re: Particle Physics
Date 2016-04-22 06:42 +0200
Message-ID <dntodjFgguuU1@mid.individual.net> (permalink)
References <9a0fcbca-370b-435f-a9c6-8a423b1484de@googlegroups.com> <34b85578-bf1c-41fb-a398-b5799de37565@googlegroups.com>

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Am 22.04.2016 04:42, schrieb Gary Harnagel:
> On Thursday, April 21, 2016 at 6:09:14 PM UTC-6, Carl Susumu wrote:
>>
>> I wrote:
>> You seem to have a memory problem: Rutherford used alpha particles, which
>> are the positive nuclei of helium atoms.  And, yes they would be stopped
>> by the thinnest thickness of steel.  IIRC, Tom was talking about muons.
>> High energy muons might lose about 5 MeV/cm, if my guesstiment is in the
>> ballpark.  So, yes, 60 MeV muons can indeed go through 2 inches of steel.>
>> _______________________________________________________________________
>>
>> What do muons have to do with subatomic particles propagating through 2 inches of the steel of the bubble chamber, forming the bubble tracks?
>
> Why are you such a lazy ignoramus that you can't look up the answers to
> your brainless questions?  Why do you have to come squealing to this
> group for help?  Here's your answer, but you're probably too lazy to
> read it:
>
> http://www.physics.csbsju.edu/tk/370/bubble.pdf
>

Quote from this text:

"Of course, technically the momentum of the particle would be 5 MeV/c 
and the mass 938 MeV/c2. Basically what we are doing is redefining 
“momentum” to be pc and “mass” to be mc2. Since the “c” has disappeared, 
this re-naming is sometimes called “setting c = 1”.)"

There the particle physicists admit, they do something very questionable.

Of course the value of the length  contained in c could be set to 1, but 
this would make the length unit 'light second' necessary.

Since a unit of energy also contains a unit of length, you must not use 
a different unit for this length. Instead the Joule should be redefined 
with lightseconds as well, since otherwise the equation would contain 
two different units for the same measurement.

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.


TH

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Thread

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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