Just "Keepin' the engine warm" on this topic.
Just "Keepin' the engine warm" on this topic.
Chemistry is applied physics just like electrical engineering. The simplified tables of chemistry (based on the current physics theories) are just as valid as using Ohms law in circuit theory instead of calculating the energy flow using EM field equations. You, Glenn or anyone else are free to use the method you chose to solve problems if the answer is correct within reasonable error requirements. Hell, assuming the world is flat still works for most local navigation problems.post #81
I do not know what we are interested in the chemists' opinion.
Chemists use here notions from physics that they do not really love.
When I see the Glenn Hollandl opinion, I regret that I went to school.
That pulls me down.
We know to think only in school patterns.
We store and reproduce information. And we thought this is all.
Nobody is thinking of that. They use a model to explain a physical phenomenon.Getting back on the main road of the original question, I'm wondering if matter waves are transverse or longitudinal?
Do not you want to talk about pair generation?Getting back on the main road of the original question,
I've done more reading (I've got 4 chemistry books in my collection) and believe I've an found an answer to this particular question.If an atomic electron is actually a wave phenomenon, then what are other atomic electron waves interacting with when a chemical bond (such as a covalant bond) is formed?
Seems there must be some kind of "center of charge" in the so called "electron cloud" that's interacting with other charge centers. Or does this electron cloud have a homogeneous charge that's spread evenly around the nucleus?
We don't neglect it. Some people just don't have that level of understanding yet.We neglect resonant phenomena in the antenna.
That's in religion.Some people just don't have that level of understanding yet.
We put 0 at the photon rest mass, not because it is. It is not the result of a measurement.Photons do not have rest mass,
How to you determine the point of impact? Does the electron 'touch' another particle and leave a infinitely small mark we can observe later or do the repulsive forces of like charges at a distance deflect electrons somewhere before the quantum position probability cloud of both particles?On another question about the Uncertainty Principle (which says that the position and momentum of a particle cannot be simultaneously determined), I'm wondering about this scenario:
If a particle (such as an electron) with a known velocity strikes a stationary target, the momentum can be determined by conservation of momentum (m1 X v1 = m2 X v2). However isn't the point of impact on the target also the position of the electron? In that case, it seems the momentum and position of the electron can be reasonably determined to be at the same location.
Nice try, but if you know the momentum, you don't know where the particle is and have no idea if it will hit the target or not. If it does get close enough to be scattered, then the momentum is continuously changing and you don't know where the particle will be. Either way you are stuck.How to you determine the point of impact? Does the electron 'touch' another particle and leave a infinitely small mark we can observe later or do the repulsive forces of like charges at a distance deflect electrons somewhere before the quantum position probability cloud of both particles?
Exactly, it's a hard concept to accept that the universe is not deterministic (because of probability amplitude distributions) to observers in this universe.Nice try, but if you know the momentum, you don't know where the particle is and have no idea if it will hit the target or not. If it does get close enough to be scattered, then the momentum is continuously changing and you don't know where the particle will be. Either way you are stuck.
As an example, in an X-Ray tube electrons are accelerated to a given velocity by a high voltage between a negative cathode and a positive anode which is the point of impact.How to you determine the point of impact? Does the electron 'touch' another particle and leave a infinitely small mark we can observe later or do the repulsive forces of like charges at a distance deflect electrons somewhere before the quantum position probability cloud of both particles?
Sure, I know that you mean but the "macroscopic" view is a group approximation (spot size) of the reality of individual charges with measurement tolerances to beam angle and charge density measurements over the impact region.As an example, in an X-Ray tube electrons are accelerated to a given velocity by a high voltage between a negative cathode and a positive anode which is the point of impact.
On a "macroscopic" viewpoint, it is generally known where the electron beam strikes the anode and the momentum imparted to the anode can also be calculated. However from a microscopic viewpoint, when we're dealing with a small particle (like an electron which is also moving as a wave), the resolution of exact the point of impact cannot be known with any degree of accuracy and my proposition was merely a philosophical exercise.