Groups > sci.physics.relativity > #426597

Re: A Way to Measure the Earth's Absolute Speed....

From	"HGW..." <hgw@....>
Newsgroups	sci.physics.relativity
Subject	Re: A Way to Measure the Earth's Absolute Speed....
Date	2017-07-30 19:21 +1000
Organization	Aioe.org NNTP Server
Message-ID	<olk8fg$1v2s$1@gioia.aioe.org> (permalink)
References	<olgiro$mud$1@gioia.aioe.org> <oljd5q$c03$3@pcls7.std.com>

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On 30/07/17 11:35, Michael Moroney wrote:
> "HGW..." <hgw@....> writes:
> 
>> Of course we know there is no aether but when people believed there was
>> one, they found that any attempt to determine the Earth's absolute speed
>> produced a null result. Lorentz and Fitzgerald then concocted the
>> contraction idea and that seemed to explain the impossibility.
> 
>> Well, while that might be impossible with light, there is a mechanical
>> method that at least in principle would be able to either measure the
>> Earth's absolute speed or prove that no absolute frame exists.
> 
>> Rabbidge's Mechanical Aether Detector (RMAD):
> 
>> Let two rods be made identical when aligned together. Can everyone
>> understand that?
> 
> Sure, Ralph.
> 
>> Separate them and then repeatedly move them towards each other at a
>> range of relative speeds.
> 
>> According to aether theories, their four ends will only be adjacent at
>> the same instant IF they have the same absolute speed.
> 
> "Same instant" defined how?  Also, how to communicate sameness from the
> different sensing locations that are separated by a distance, Henry?

Poor fellow. they can be synched with light from the midpoint if 
necessary but the detectors could be replaced by 45 mirrors and one 
detector at the midpoint would suffice. Don't you know anything about 
experimental physics? I thought not....
Close synchronization is not very important because vaarying the speed 
of the rod should cause it to change length, according to LET and give a 
different pair of times for each speed.

>> According to normal physics, the four ends will ALWAYS be adjacent at
>> the same instant, no matter what their speeds are.
> 
> "Normal" how, Ralph? Do you mean "Newtonian", Ralph?
> 
>> So, any difference in the timing of the adjacency of the opposite ends
>> would mean that an aether exists
> 
> Or that SR is valid.

SR requires an aether to unify light speeds from differently moving sources.

>> and furthermore, that the Earth's
>> absolute speed can be determined by performing the experiment at
>> different speeds and monitoring the times.
> 
> Of course such measurements have been done, and cannot come up with any
> sort of absolute speed, Ralph, because there isn't such a thing.
> 
>> If the timing was always the same irrespective of speed, that would be
>> proof that no aether exists and Einstein's theory is wrong.
> 
> But no aether supports Einstein's theory, 

Then why did Einstein say his theory would collapse if there wasn't one?




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Thread

A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-29 09:54 +1000
  Re: A Way to Measure the Earth's Absolute Speed.... rotchm <rotchm@gmail.com> - 2017-07-28 19:03 -0700
    Re: A Way to Measure the Earth's Absolute Speed.... "HGW, DSc." <HG@....> - 2017-07-30 04:42 +1000
      Re: A Way to Measure the Earth's Absolute Speed.... rotchm <rotchm@gmail.com> - 2017-07-29 18:35 -0700
        Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-30 19:12 +1000
          Re: A Way to Measure the Earth's Absolute Speed.... rotchm <rotchm@gmail.com> - 2017-07-30 06:20 -0700
      Re: A Way to Measure the Earth's Absolute Speed.... dancouriann@gmail.com - 2017-07-30 08:30 -0700
      Re: A Way to Measure the Earth's Absolute Speed.... "Paul B. Andersen" <relativity@paulba.no> - 2017-07-30 19:31 +0200
        Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-31 10:51 +1000
  Re: A Way to Measure the Earth's Absolute Speed.... kenseto <setoken@att.net> - 2017-07-29 11:59 -0700
    Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-30 08:50 +1000
      Re: A Way to Measure the Earth's Absolute Speed.... kenseto <setoken@att.net> - 2017-07-30 05:44 -0700
        Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-31 10:57 +1000
          Re: A Way to Measure the Earth's Absolute Speed.... kenseto <setoken@att.net> - 2017-07-31 05:44 -0700
            Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-08-01 10:21 +1000
              Re: A Way to Measure the Earth's Absolute Speed.... dancouriann@gmail.com - 2017-07-31 17:42 -0700
              Re: A Way to Measure the Earth's Absolute Speed.... moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-01 04:07 +0000
              Re: A Way to Measure the Earth's Absolute Speed.... kenseto <setoken@att.net> - 2017-08-01 06:43 -0700
              Re: A Way to Measure the Earth's Absolute Speed.... kenseto <setoken@att.net> - 2017-08-01 07:01 -0700
                Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-08-02 08:39 +1000
            Re: A Way to Measure the Earth's Absolute Speed.... moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-01 03:43 +0000
  Re: A Way to Measure the Earth's Absolute Speed.... moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-30 01:35 +0000
    Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-30 19:21 +1000
      Re: A Way to Measure the Earth's Absolute Speed.... Jeèným Ludnými <hovae@ieuuio.org> - 2017-07-30 10:37 +0000
      Re: A Way to Measure the Earth's Absolute Speed.... rotchm <rotchm@gmail.com> - 2017-07-30 06:35 -0700
      Re: A Way to Measure the Earth's Absolute Speed.... moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-31 00:18 +0000
        Re: A Way to Measure the Earth's Absolute Speed.... "HGW..." <hgw@....> - 2017-07-31 12:08 +1000
          Re: A Way to Measure the Earth's Absolute Speed.... moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-07-31 14:23 +0000
            Re: A Way to Measure the Earth's Absolute Speed.... Jeèným Ludnými <hovae@ieuuio.org> - 2017-07-31 18:40 +0000

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