Groups > sci.physics.relativity > #367467

Re: Let's talk about "TECHNICAL aspects".

From	Sylvia Else <sylvia@not.at.this.address>
Newsgroups	sci.physics.relativity
Subject	Re: Let's talk about "TECHNICAL aspects".
Date	2015-10-19 18:52 +1100
Message-ID	<d8jlp3Fg7e2U1@mid.individual.net> (permalink)
References	<n00375$f3o$1@node1.news.atman.pl> <d8jdrjFebcbU1@mid.individual.net> <3931a1d5-4296-4b6a-ba10-c3e4fbdb01be@googlegroups.com>

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On 19/10/2015 5:01 PM, mlwozniak@wp.pl wrote:
> W dniu poniedziałek, 19 października 2015 07:36:55 UTC+2 użytkownik
> Sylvia Else napisał:
>> On 18/10/2015 11:27 PM, Maciej Woźniak wrote:
>>>
>>>
>>> Użytkownik "JanPB"  napisał w wiadomości grup
>>> dyskusyjnych:ca7b185d-0432-4ed9-b275-15f8feceeec7@googlegroups.com...
>>>
>>>
>>>
|What Maciej does OTOH is reaching conclusions (like "all physicists are
>>> |idiots") which are not of that type - they can only be reached
>>> after |a serious and detailed study of TECHNICAL aspects.
>>>
>>>
>>> So, let's talk about TECHNICAL aspects of The Shit, will we? How
>>> to determine your moronic interval between two real events, for
>>> instance, battle of Waterloo and battle of Gaugamela?
>>
>> About -4.6 million square light-years.
>
> :) "About" is not enough for me, and my question is "how to
> determine". Can we measure it, somehow? I've heard physical
> quantities are to be measured... or is it just one of these "common
> sense prejudices" refuted by Great Guru?

It's not a problem. It's just a matter of measuring the distance and 
time separation between the events in some frame, combining them 
according to the rule, and giving a readout in square light-years, or 
whatever other square length measure seems appropriate.

>
> In this instance, the major
>> separation is in time, with the distance separation being
>> insignificant by comparison.
>
> WHAT distance? Or - distance measured by which observer?
>

The distance and time separations must be measured in the same inertial 
frame, but it doesn't matter which inertial frame is used, since the 
resulting space-time interval is the same in all cases. So it doesn't 
matter which observer does the measuring.

Sylvia.

Thread

Let's talk about "TECHNICAL aspects". Maciej Woźniak <mlwozniak@wp.pl> - 2015-10-18 14:27 +0200
  Re: Let's talk about "TECHNICAL aspects". JanPB <filmart@gmail.com> - 2015-10-18 18:53 -0700
    Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-18 23:13 -0700
  Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-19 16:36 +1100
    Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-18 23:01 -0700
      Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-19 18:52 +1100
        Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-19 01:25 -0700
          Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-19 19:56 +1100
            Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-19 02:57 -0700
              Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-20 12:22 +1100
                Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-19 23:27 -0700
                Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-20 19:29 +1100
                Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-20 02:14 -0700
                Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-20 20:29 +1100
                Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-20 02:45 -0700
    Re: Let's talk about "TECHNICAL aspects". alsor@interia.pl - 2015-10-19 12:02 -0700
      Re: Let's talk about "TECHNICAL aspects". paparios <paparios@gmail.com> - 2015-10-19 12:25 -0700
        Re: Let's talk about "TECHNICAL aspects". Maciej Woźniak <mlwozniak@wp.pl> - 2015-10-19 22:55 +0200
          Re: Let's talk about "TECHNICAL aspects". paparios <paparios@gmail.com> - 2015-10-19 17:14 -0700
            Re: Let's talk about "TECHNICAL aspects". mlwozniak@wp.pl - 2015-10-19 23:39 -0700
      Re: Let's talk about "TECHNICAL aspects". Sylvia Else <sylvia@not.at.this.address> - 2015-10-20 12:24 +1100

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