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Mirrors         


Author: RH Nigl / GH Diel
Date: Nov 20, 2007 00:22

Looking in a mirror you, of course, see a reflection. This, no doubt,
happens at the speed of light.

Say you are standing three meters in front of mirror's reflective
surface. Should you suddenly step aside, that is, you no longer are
'observing' the reflection, does the mirror retain your image for
the incredibly small fraction of time it takes light to travel the
distance of the three meters, (the distance here, is arbitrary)?

RH Nigl
13 Comments
Re: Mirrors         


Author: Art
Date: Nov 20, 2007 01:37

On Tue, 20 Nov 2007 03:22:18 -0500, "RH Nigl / GH Diel"
exoptica.com> wrote:
>Looking in a mirror you, of course, see a reflection. This, no doubt,
>happens at the speed of light.
>
>Say you are standing three meters in front of mirror's reflective
>surface. Should you suddenly step aside, that is, you no longer are
>'observing' the reflection, does the mirror retain your image for
>the incredibly small fraction of time it takes light to travel the
>distance of the three meters, (the distance here, is arbitrary)?
>
>RH Nigl

Mirrors don't retain images. They reflect light.

Art
http://home.epix.net/~artnpeg
no comments
Re: Mirrors         


Author: tg
Date: Nov 20, 2007 02:19

On Nov 20, 3:22 am, "RH Nigl / GH Diel" exoptica.com> wrote:
> Looking in a mirror you, of course, see a reflection. This, no doubt,
> happens at the speed of light.
>
> Say you are standing three meters in front of mirror's reflective
> surface. Should you suddenly step aside, that is, you no longer are
> 'observing' the reflection, does the mirror retain your image for
> the incredibly small fraction of time it takes light to travel the
> distance of the three meters, (the distance here, is arbitrary)?
>
> RH Nigl

The light is still going to pass through the place that you just
vacated. What you seem to be asking is a version of "if a tree falls
in the forest does it make a sound if nobody is there to hear it?".
This then becomes a debate about the definition of 'image', and so on.

-tg
no comments
Re: Mirrors         


Author: ZerkonX
Date: Nov 20, 2007 04:47

On Tue, 20 Nov 2007 03:22:18 -0500, RH Nigl / GH Diel wrote:
> Say you are standing three meters in front of mirror's reflective
> surface. Should you suddenly step aside, that is, you no longer are
> 'observing' the reflection, does the mirror retain your image for
> the incredibly small fraction of time it takes light to travel the
> distance of the three meters, (the distance here, is arbitrary)?

If you snap your finger then step aside, does the mirror retain sound?
If you place a hypothetical mirror billions of light years away then
step in front of it, you can not see yourself, yet. You step aside and
another person steps in front of the mirror, they see you before their
own reflection.

What you are basically getting at is pretty interesting. Since light has
speed everything we see and everything that sees us is 'past'. This
might seem to be something that can be overlooked (was that a pun?)
because the delay is so infinitesimal however if ever there is found to be
some sort of cumulative effect, some type of .. I don't know.. something,
maybe internal to the human senses, the human cognitive process or
something external or both..?

I have a sudden urge to look for a bong.
no comments
Re: Mirrors         


Author: RH Nigl / GH Diel
Date: Nov 20, 2007 05:47

"ZerkonX" zerkonx.net> wrote in message
news:pan.2007.11.20.12.47.26.476482@zerkonx.net...
> On Tue, 20 Nov 2007 03:22:18 -0500, RH Nigl / GH Diel wrote:
>
>> Say you are standing three meters in front of mirror's reflective
>> surface. Should you suddenly step aside, that is, you no longer are
>> 'observing' the reflection, does the mirror retain your image for
>> the incredibly small fraction of time it takes light to travel the
>> distance of the three meters, (the distance here, is arbitrary)?
>
> If you snap your finger then step aside, does the mirror retain sound?
> If you place a hypothetical mirror billions of light years away then
> step in front of it, you can not see yourself, yet. You step aside and
> another person steps in front of the mirror, they see you before their
> own reflection.
>
> What you are basically getting at is pretty interesting. Since light has
> speed everything we see and everything that sees us is 'past'. This
> might seem to be something that can be overlooked (was that a pun?)
> because the delay is so infinitesimal however if ever there is found to be ...
Show full article (2.67Kb)
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Re: Mirrors         


Author: brian fletcher
Date: Nov 20, 2007 07:09

"RH Nigl / GH Diel" exoptica.com> wrote in message
news:COWdnT6ZotXWBN_anZ2dnUVZ_j2dnZ2d@adelphia.com...
> Looking in a mirror you, of course, see a reflection. This, no doubt,
> happens at the speed of light.
>
> Say you are standing three meters in front of mirror's reflective
> surface. Should you suddenly step aside, that is, you no longer are
> 'observing' the reflection, does the mirror retain your image for
> the incredibly small fraction of time it takes light to travel the
> distance of the three meters, (the distance here, is arbitrary)?
>
> RH Nigl
>
Yes, unless you are Mohammed Ali.

(Hopefully you may have heard him say "I'm so fast, that Im in bed after I
switch off the light, befor the light dissapears :-)

Of course, what you say is correct.

BOfL
no comments
Re: Mirrors         


Author: brian fletcher
Date: Nov 20, 2007 07:10

"Art" zilch.com> wrote in message
news:pha5k31a93ade6v5qc9ji13e518gh68888@4ax.com...
> On Tue, 20 Nov 2007 03:22:18 -0500, "RH Nigl / GH Diel"
> exoptica.com> wrote:
>
>>Looking in a mirror you, of course, see a reflection. This, no doubt,
>>happens at the speed of light.
>>
>>Say you are standing three meters in front of mirror's reflective
>>surface. Should you suddenly step aside, that is, you no longer are
>>'observing' the reflection, does the mirror retain your image for
>>the incredibly small fraction of time it takes light to travel the
>>distance of the three meters, (the distance here, is arbitrary)?
>>
>>RH Nigl
>
> Mirrors don't retain images. They reflect light.

People are also mirrors, and what you say applies acordingly.
Show full article (0.82Kb)
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Re: Mirrors         


Author: brian fletcher
Date: Nov 20, 2007 07:13

"ZerkonX" zerkonx.net> wrote in message
news:pan.2007.11.20.12.47.26.476482@zerkonx.net...
> On Tue, 20 Nov 2007 03:22:18 -0500, RH Nigl / GH Diel wrote:
>
>> Say you are standing three meters in front of mirror's reflective
>> surface. Should you suddenly step aside, that is, you no longer are
>> 'observing' the reflection, does the mirror retain your image for
>> the incredibly small fraction of time it takes light to travel the
>> distance of the three meters, (the distance here, is arbitrary)?
>
> If you snap your finger then step aside, does the mirror retain sound?
> If you place a hypothetical mirror billions of light years away then
> step in front of it, you can not see yourself, yet. You step aside and
> another person steps in front of the mirror, they see you before their
> own reflection.
>
> What you are basically getting at is pretty interesting. Since light has
> speed everything we see and everything that sees us is 'past'. This
> might seem to be something that can be overlooked (was that a pun?)
> because the delay is so infinitesimal however if ever there is found to be ...
Show full article (1.60Kb)
no comments
Re: Mirrors         


Author: Wordsmith
Date: Nov 20, 2007 11:15

On Nov 20, 8:10 am, "brian fletcher" bigpond.net.au> wrote:
> "Art" zilch.com> wrote in message
>
> news:pha5k31a93ade6v5qc9ji13e518gh68888@4ax.com...
>
>> On Tue, 20 Nov 2007 03:22:18 -0500, "RH Nigl / GH Diel"
>> exoptica.com> wrote:
>
>>>Looking in a mirror you, of course, see a reflection. This, no doubt,
>>>happens at the speed of light.
>
>>>Say you are standing three meters in front of mirror's reflective
>>>surface. Should you suddenly step aside, that is, you no longer are
>>>'observing' the reflection, does the mirror retain your image for
>>>the incredibly small fraction of time it takes light to travel the
>>>distance of the three meters, (the distance here, is arbitrary)?
>
>>>RH Nigl
>
>> Mirrors don't retain images. They reflect light. ...
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Re: Mirrors         


Author: Sir Frederick
Date: Nov 20, 2007 13:22

On Tue, 20 Nov 2007 03:22:18 -0500, "RH Nigl / GH Diel" exoptica.com> wrote:
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