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TheboxQuote What are these Photons you speak of?Quote In respect to a Photon, a Photon travels a linear path at the speed of the light (c) . The above is taken from your post The Theory of Realistic! . The photons I am referring to are the same photons ( apparently) that you are referring to in your post.
What are these Photons you speak of?
In respect to a Photon, a Photon travels a linear path at the speed of the light (c) .
QuoteReflection and scattering are precisely the same thing. Reflection is just scattering from a lot of atoms all arranged in a very uniform way such that the resulting scattering is also very uniform and reinforces itself. The above statement is not supported, according to present thinking, scattering and reflection are two different and separate processes.
Reflection and scattering are precisely the same thing. Reflection is just scattering from a lot of atoms all arranged in a very uniform way such that the resulting scattering is also very uniform and reinforces itself.
No reflection is just coherent scattering. They are not different processes.
Here is an account of the present wisdom on the phenomena of scattering and reflection, I do not necessarily hold the same views:What is the difference between Reflection and Scattering?• Scattering is a wave property of matter whereas reflection is a particle property.• Scattering requires a total absorption and emission of a particle or a photon, whereas reflection only bounces back the incident particle or wave.• The wavelength of the incident wave can change due to scattering, but it cannot change due to reflection.• Reflection is easily observable, whereas observation of scattering requires advanced equipment.• The law of reflection holds to any reflective material whereas the equations for scattering is dependent on the materials and conditions used.
A radical shift is needed away from the present static treatment of the phenomenon of the absorption and emission of photons , it should be replaced with a dynamic model in which every object in the universe in thermal equilibrium absorbs and emits radiation continuously.
Why is this important ? It is important because this simple but important fact completely changes, or more accurately gives a new slant to ideas that were previously overshadowed by the considering of the emission and absorption of photons by looking at atomic models that give a one off description of the process but do not extend it to the everyday level where it would be obvious that each electron is absorbing and emitting photons at the photon frequency of the incident light.
Any practitioner of Quantum Mechanics reading this will immediately state "What baloney!", frequency is an abstract property of the photon, it has no physical existence in reality.
If due consideration is paid to the fact that the frequency of photons was calculated in exactly the same manner that the frequency of radio waves or sound waves is calculated, namely by dividing the speed of the wave by the wave- length. The wave-length of light can be calculated using an interferometer , since the speed of light is constant it is possible to calculate the frequency of that particular light ( if it is monochromatic). It is therefore clear that the frequency of light does actually have some physical basis.
This being so it follows that electrons must be absorbing and emitting ( at least where reflection is concerned) photons at the same frequency as the incident radiation. However, Quantum Mechanics cannot agree to this as they do not believe there is a physical basis to the frequency of light precisely because of wave/particle duality.
In Quantum Mechanics, at least as far as the emission and absorption of photons are concerned, the frequency of light is an abstract concept. IF on the other hand we ignore wave/particle duality and view light as a synthesis of light and particle ( i.e., not light as either particle or wave but as both together) rather like the hypersound used in lipotripsy, which is most definitely a wave but whose effect are particle like, the concept of frequency of light as a physical quantity begins to make sense.
The two fields interfere and the result is that the incoming photon is altered. This is called scattering. When a lot of atoms in a very regular arrangement do this the scattered waves all interfere with each other resulting in the observed macroscopic laws of reflection. If the surface doing the scattering is rough on a scale that is much much larger than the atoms but much much smaller than humans we get what is called a diffuse reflection. Most reflections are diffuse. All scattering and reflection of photons comes down to forced oscillations of electrons due to incident light that produce electromagnetic oscillations that cause the outgoing light to be slightly different.
Relatively no observer, observes the existence of a single photon, neither does the observer, observe such as photon packets.
Quote from: Thebox on 19/03/2016 15:36:25Relatively no observer, observes the existence of a single photon, neither does the observer, observe such as photon packets. Human eyes may not be sensitive enough to observe a single photon, but our power of observation is not limited to our eyes. Photo multiplier: "For smaller photon fluxes, the photomultiplier can be operated in photon counting or Geiger mode (see also: single-photon avalanche diode). In Geiger mode the photomultiplier gain is set so high (using high voltage) that a single photo-electron resulting from a single photon incident on the primary surface generates a very large current at the output circuit."
You are wrong sir, observation is limited to the eyes, I think you are referring to detection which is distinguishable from observation.
Here again you talk about fields rather than photon absorption and emission, so according to you, [The two fields interfere and the result is that the incoming photon is altered.] scattering is where the incoming light (electromagnetic field) behaves like a wave and interacts with the electron; is altered by the interaction and scattered. Yet this is not what experiment shows occurs. The very definition of a field(s) is that its energies are diffuse and spread out , experiment has shown that every electron reaction with incoming light is with a definite quanta of energy that reacts (or not) with the electron. You go onto say that if the material of the substance on which the light is impinging is smooth ( relative to the size of the atom) reflection results, if the surface is rough (relative to the size of the atom) a more diffuse form of reflection results. The point is (AND THIS IS SOMETHING THAT FIELDS CANNOT DO ) is that every photon/electron reaction requires a definite quanta of energy. How then can you put forward a wave theory as an explanation? OR is that the whole point of your post namely that reflection and scattering involve wave phenomena while absorption and emission require particle phenomena ?
How does sight work, is it the wave or particle nature or light that transmits the information. How do the various frequencies of light prior to being reflected effect what we see? Since the perception of color depends on the firing of these three types of nerve cells, do you suppose that it is fair to assume that sight actually involves the absorption of photons and the resultant (very specific) energy and not mere interaction with a wave, since it has to result in the firing of nerve receptors, a wave would be diffuse, how would it convey the exact energy needed. If you disagree with this supposition please give your reasons. If on the other hand you agree with that statement, just look around, try and calculate how many things you are seeing and how many photons those objects might represent and explain why sight works with emission and absorption but that a different mechanism is needed ( electromagnetic fields) when talking about reflection and scattering.
But for Quantum Mechanics apparently not. Theories, some of them pretty flaky, thought up a hundred years ago, when classical physics had nothing better to offer are still strictly followed today, even though alternative theories are available. In fact today's Quantum Mechanics is as close to an aether theory as it is possible to get without actually saying it.
In giving explanations like : The electron is present as a cloud. Averaged over the cloud, the positive kinetic energy is half as big as the negative potential energy.More importantly, the cloud really is the state of the electron. It's not a picture of where some dot-like particle probably is. It isn't anywhere in particular. It also doesn't have any particular velocity. In a hydrogen atom, it's certainly not going in a circle. The cloud doesn't go anywhere at all. There's no reason for it to radiate.The world at a small scale cannot be put together out of anything like the pictures we're used to at a large scale.Quantum Mechanics seems to completely ignore the fact that an electron has mass, yet often tries to justify this view point on the grounds that the electron is a charged particle. So according to Quantum Mechanics a particle possessing mass can possess a diffused form and exist as a wave or cloud AND a mass less photon can be a particle. There is in reality no justification for eithjer statement except that at the time there seemed to be a need for this to be true.