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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
Where is the mirror image which interacts with the film? Is it at the film/retina?
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Yes.
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Originally Posted by Spacemonkey
What does it consist of? Photons, or something else?
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Photons. Please don't start asking me which came first, blue or red photons. 
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Originally Posted by Spacemonkey
If photons, then where are the photons of which it consists?
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At the film/retina. |
I'm just trying to work out what it is that you're imagining here. So now at the moment the photograph is taken there's a mirror image at the camera film consisting of photons at the film which
are not duplicates of the unabsorbed light at the object. Yes?
What happens to the unabsorbed light? When
we say that some of the light is unabsorbed we mean it bounces off the surface instead and continues to travel away from the object. What do
you mean? Are you saying that a blue object will absorb all but the blue light from the sunlight, and that the remaining blue light will cease to exist as it hits the object and will instantly reappear at the film without ever bouncing off the object?
How is that not faster-than-light teleportation of photons?
If you're not saying that, then what
are you saying? Do you even know?
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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
Then they are teleporting!
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Mirror images do not teleport.
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Originally Posted by Spacemonkey
The photons at the object are no longer creating instantaneous duplicates of themselves at the distant film/retina. Rather they are ceasing to exist when they leave the surface of the object and are instantly re-appearing at the film/retina.
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Oh my god, you're starting this again?  |
Well I'm sorry, but I don't know how else to describe what you are saying.
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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
This has two absurd consequences: Firstly, it means reflected light is never in motion. It exists either at the object or at the film/retina, but is never actually in motion between those points.
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That's not true. Neutral light from the Sun is constantly in motion. I already said this, but when we're looking through the eyes, at the external world, we get a mirror image due to the eyes being efferent. Until you can envision what I'm saying, you will think it's absurd, but it doesn't make it so. |
I didn't say anything about the neutral light from the Sun. I spoke only of
reflected light which, according to your present answers, is never in motion. By our definition of 'reflection' it never even gets reflected. It never bounces off an object to continue travelling (which incidentally means that there can be no such thing as 'angle of reflection' in optics). Whenever sunlight strikes an object, some of it gets absorbed and the rest disappears and instantly reappears at any nearby films or retinas. So the sunlight travels, but
reflected light never travels at all, and only ever exists momentarily at the surface of films and retinas.
If this is not what you are trying to convey to me, then
please correct this description. Tell me what happens to unabsorbed light if it is not what I've just said.
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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
And secondly, this amounts to light effectively being instantaneous, thereby getting from one place to another (albeit via teleportation rather than travelling there) faster than the speed of light!
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Oh really? Is that what's happening when we see mirror images? They are teleporting faster than the speed of light? |
Not according to
me, but it seems to be exactly what
you are describing.
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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
If this is incorrect, then please tell me what happens to the photons which are either emitted or not-absorbed by the light source/object. If they don't cease to exist there by teleporting to any nearby film/retina, then do they travel away from that light source/object? If they do neither then what do they do?
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They never did exist Spacemonkey. Only the full spectrum of light exists. The only reason we see blue is because the object absorbed the other colors of the visible spectrum, but this has nothing to do with light traveling with the blue wavelength. |
If the unabsorbed photons never existed, then how can their not being absorbed explain their presence at the film or retina? If the object is being struck by sunlight, then that sunlight will contain blue-wavelength photons, right? If the object is blue, then it absorbs all but the blue photons, yes? So the unabsorbed blue photons
did exist, and were part of sunlight arriving at the blue object. (If not, then they weren't there to not be absorbed.) So what happens to them?
You seem to have been saying that they disappear as they hit the object and instantaneously reappear at the nearest films and retinas. Is that wrong?
If so, then what
does happen to them?