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Re: Light and modern physics

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On 13/06/2018 22:11, Volney wrote:
> On 6/13/2018 2:54 PM, Keith Stein wrote:
>> On 13/06/2018 18:17, Volney wrote:
>>> On 6/13/2018 3:20 AM, Keith Stein wrote:
>>
>>>> "SECOND ELECTRON" goes from  0.0 m/s to c(nearly) in no time eh!
>>
>>>>>>  >   Keith Stein wrote:
>>>>>>  >
>>>>>>  > Consider an electron which is stationary relative to the
>>>>>>  > interplanetary medium. Speed of light relative to THAT electron
>>>>>>  >  = 3*10^8 m/s (almost).
>>>>>>  >
>>>>>>  > Consider a second electron which is moving in the same 
>>>>>> direction as
>>>>>>  > the light and at the speed of light in the interplanetary medium.
>>>>>>  > Speed of light relative to THIS electron       = 0.0 m/s 
>>>>>> (exactly eh!)
>>>>>>
>>>>>> Mr.Volney wrote:
>>>>>> Yes, that can happen in theory.
>>>>
>>>>
>>>> On 13/06/2018 05:54, Volney wrote:
>>>>> On 6/12/2018 8:01 PM, Keith Stein wrote:
>>>>>> Do please tell us
>>>>>>     What is the speed of light in interplanetary vacuum, relative to 
>>>>> .     frame of reference in which my second electron is stationary ?
>>>>>
>>>>> c/n+v(1-1/n^2), where n is nearly exactly 1.
>>>
>>> So? SO Putting n=1 we discover that now you are telling me
>>  >>>>  speed of light in interplanetary vacuum, relative to
>>  >>>>  frame of reference in which my second electron is stationary = C
> 
> Very good! If we have n=1 (exactly) then we have a perfect vacuum, and 
> that means the speed of light = c relative to everything, including your 
> electron.
>>
>>
>> WHEREAS ONLY 2 DAYS EARLIER YOU HAD AGREED (correctly in fact)
>> that the speed of light relative to that sacond electron was zero.
>>
>> keith stein wrote:
>>  >>>>  > Consider a second electron which is moving in the same
>>  >>>>  > direction as the light and at the speed of light in the
>>  >>>>  > interplanetary medium.
>>  >>>>  > Speed of light relative to THIS electron       = 0.0 m/s
>>
>>  >>>> Mr.Volney wrote:
>>  >>>> Yes, that can happen in theory.
>>
>>
>> So which is it Mr.Volney, 0.0 m/s (exactly) or 3*10^8 m/s (nearly)
> 
> You were discussing a very thin medium, with n=1.0000000000001 or 
> something, perhaps. In theory, there could be electrons exceeding the 
> speed of light in that medium if they had extreme energy. However, if 
> n=1 (exactly), we have a perfect vacuum, and the speed of light is now c 
> relative to all observers, and it is impossible to provide your electron 
> with enough energy to have it move at the same speed as light (which is c).

So now it is clear what the difference between a very rare medium and
a perfect vacuum is the difference between 0.0 m/s (exactly), and
3*10^8 m/s (nearly).

That's my point eh!

Thank you Mr.Volney.

keith stein

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Light and modern physics numbernumber1964@gmail.com - 2018-06-12 09:05 -0700
  Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-12 20:26 +0100
    Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-12 16:34 -0400
      Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-13 01:01 +0100
        Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-13 00:54 -0400
          Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-13 08:20 +0100
            Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-13 13:17 -0400
              Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-13 19:54 +0100
                Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-13 17:11 -0400
                Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-15 11:40 +0100
                Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-15 14:26 -0400
    Re: Light and modern physics mitchrae3323@gmail.com - 2018-06-13 15:51 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-12 13:37 -0700
    Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-13 08:31 +0100
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-12 13:41 -0700
    Re: Light and modern physics Steve BH <sbharris@gmail.com> - 2018-06-12 20:21 -0700
    Re: Light and modern physics John Gogo <jfgogo22@yahoo.com> - 2018-06-18 19:07 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-12 13:43 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-12 13:45 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-12 17:08 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-12 17:09 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-13 10:52 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-13 10:55 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-13 10:56 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-13 13:41 -0700
    Re: Light and modern physics Keith Stein <keithstein111@gmail.com> - 2018-06-13 22:03 +0100
      Re: Light and modern physics mitchrae3323@gmail.com - 2018-06-13 16:01 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-13 14:50 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-13 14:52 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-13 16:07 -0700
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-15 11:30 -0700
    Re: Light and modern physics Volney <volney@volney.invalid> - 2018-06-15 15:03 -0400
  Re: Light and modern physics furthermore7990662@gmail.com - 2018-06-15 13:21 -0700
  Re: Light and modern physics numbernumber1964@gmail.com - 2018-06-18 14:57 -0700

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