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Groups > sci.physics.relativity > #390546

Re: My instantaneous point of view

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics.relativity
Subject Re: My instantaneous point of view
Date 2016-08-22 13:21 +1000
Message-ID <e1v9doF8i88U1@mid.individual.net> (permalink)
References (14 earlier) <820dc899-c731-49c5-833e-3a567ad553a2@googlegroups.com> <e1v2utF7914U1@mid.individual.net> <fa0f0b42-cd56-4076-9b60-f29abfb5dce9@googlegroups.com> <e1v5m7F7qg8U1@mid.individual.net> <784d5b96-dc30-4091-9a35-3b8215a8bd67@googlegroups.com>

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On 22/08/2016 1:03 PM, John Gogo wrote:
> On Sunday, August 21, 2016 at 9:17:46 PM UTC-5, Sylvia Else wrote:
>> On 22/08/2016 11:42 AM, John Gogo wrote:
>>> On Sunday, August 21, 2016 at 8:31:12 PM UTC-5, Sylvia Else
>>> wrote:
>>>> On 22/08/2016 9:41 AM, John Gogo wrote:
>>>>> On Saturday, August 20, 2016 at 9:40:09 PM UTC-5, Sylvia Else
>>>>> wrote:
>>>>>> On 21/08/2016 6:17 AM, John Gogo wrote:
>>>>>>
>>>>>>> It would take about two seconds if go/come to Earth, one
>>>>>>> second if one-way.
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> So, not instantaneous then.
>>>>>>
>>>>>> Sylvia.
>>>>>
>>>>> No, not any signal. But, the observation of the "largeness of
>>>>> the screen"(determined by maximum visual acuity) is
>>>>> instantaneous.
>>>>>
>>>>
>>>> Suppose we had a large screen on the Moon, but it was initially
>>>> covered up. Then, when a laser pulse hits the retro-reflector,
>>>> the large screen was uncovered. Do you maintain that the
>>>> largeness of the screen could be observed before the returning
>>>> laser pulse reaches the Earth?
>>>>
>>>> Sylvia.
>>>
>>> Yes, this is what I have been trying to say.
>>>
>>
>> Your retina is sensitive to photons. For you to observe the
>> photons representing the largeness of the screen before the photons
>> in the returning laser pulse, the former would have to travel
>> faster than the latter. Why would they travel faster? How would
>> they know that they should travel faster?
>>
>> Sylvia.
>
> You are treating "retina" like a machine to measure "photons" from
> which the very nature of its' meaning is traveling. Don't think like
> this. Think about why the object is large as it is and what makes
> this possible. Then you go right away to the screen of photons. Don't
> do this. Instead, compare the image of the screen- the 1,2,3 in
> seconds vs. the signal that the satellite sends back.
>

There is no image of the screen until the photons from it arrive at the 
retina.

Sylvia.

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Thread

Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-15 19:19 -0700
  Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-15 19:22 -0700
    Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-15 19:25 -0700
      Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-19 18:45 -0700
        Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-20 13:34 +1000
          Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-20 13:17 -0700
            Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-21 12:40 +1000
              Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 16:41 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-22 11:31 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 18:42 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 18:45 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-22 12:17 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 19:48 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 20:03 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-22 13:21 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 20:26 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-22 14:29 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 20:22 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 20:30 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-21 20:39 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-22 15:18 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 08:42 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-24 12:54 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-24 18:52 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-25 16:02 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 15:29 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-26 11:51 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:02 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-26 12:05 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:09 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-26 12:40 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:45 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-26 13:43 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:50 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:58 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-25 19:06 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-26 13:45 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-27 19:46 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-27 19:47 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-28 12:59 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-27 21:11 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-28 15:19 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-29 20:21 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-30 14:18 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-29 20:23 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-29 21:32 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-30 15:11 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-30 18:08 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-31 11:28 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-30 19:36 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-30 19:41 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-31 12:57 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-30 20:07 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-08-31 13:45 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 17:37 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-09-01 11:49 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 18:59 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-09-01 13:54 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 21:26 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 19:08 -0700
                Re: My instantaneous point of view Sylvia Else <sylvia@not.at.this.address> - 2016-09-01 14:00 +1000
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 21:14 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 21:18 -0700
                Re: My instantaneous point of view JanPB <filmart@gmail.com> - 2016-09-01 11:33 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-01 17:37 -0700
                Re: My instantaneous point of view "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-09-01 08:53 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-30 20:09 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-31 18:53 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-01 18:29 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-01 18:42 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-01 18:50 -0700
                Re: My instantaneous point of view Jonathan Doolin <good4usoul@gmail.com> - 2016-09-04 04:57 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 17:25 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 20:59 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 21:05 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 21:12 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 20:56 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-04 21:03 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-05 20:55 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-05 21:07 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-06 21:21 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-09-06 22:23 -0700
                Re: My instantaneous point of view Jonathan Doolin <good4usoul@gmail.com> - 2016-09-07 06:45 -0700
                Re: My instantaneous point of view mlwozniak@wp.pl - 2016-08-21 23:21 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 16:12 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 16:14 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 16:17 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 16:19 -0700
                Re: My instantaneous point of view John Gogo <jfgogo22@yahoo.com> - 2016-08-23 16:22 -0700

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