
The basis of quantum dynamics may have some serious questions which have never been properly confronted or answered. Most modern Physicists properly describe quantum mechanics as a THEORY, in other words as a working hypothesis, which has shown itself to be wonderfully useful. But others seem to accept it as an absolute fact, upon which they have felt confident to build entire new fields of Physics. I am not so sure.
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Much earlier, Einstein's work on the Photoelectric Effect provided a starting point, where it did not matter how bright a light was, regarding the amount of energy that each ionized electron carried away, but that the color of the light did affect it.
Bohr's basic theory of atomic structure established these very distinct energy levels, where no electrons seemed to ever exist in any intermediate states. Nearly all other experiments supported and confirmed the general conclusions.
Physics did not have any good way of handling, or even describing such situations. There were conclusions found that expressed some aspects of such things, such as the Pauli Exclusion Principle, which stated that electrons can NOT exist in energy states (orbits) other than a limited number of very precisely defined ones and that two electrons cannot simultaneously occupy the same energy state of the atom. Energy state soon got described as quantum state.
Heisenberg found the Uncertainty Principle in 1927, which indicated that it was impossible to determine both the position and the momentum of any particle, such as an electron, with a precision better than a certain very specific level.
Within the mathematics of Physics, there was another matter that resulted in something called the Quantum Defect. There is no doubt that Pauli's work has been centrally important in advancing Physics, such as by defining every individual electron in a specific atom by four quantum numbers, where each therefore has a unique energy content.
These various findings caused Physics calculations to begin to be done as probability calculations (and therefore the beginnings of quantum mechanics) rather than as the exact calculations (of classical mechanics).
Their conclusion was that planets COULD perturb each others' orbits in ALL WAYS EXCEPT ONE, where five of the six basic parameters of an orbit might be altered by perturbations. They assumed that the sixth, the average orbital radius could not be changed due to perturbations. That SEEMED like a fine conclusion at the time, and it has been very useful for Astronomers and Physicists ever since. IF the Conservation of Energy and Conservation of Angular Momentum are each always true, then simple equations can show that no such alteration of the semimajor axis dimension would be possible.
However, that has been found to have (at least) one exception! When two planets are in orbits in different planes, then they cause an effect called Regression of the Nodes of the orbit, which is essentially the same as a Precessional effect on the orbit. Euler's set of three Differential Equations, which are the threedimensional expression of Newton's Laws of Motion, are easily seen to show that a motion or action in ONE axis necessarily causes a Regression or Precession effect in a DIFFERENT axis (90 degrees away).
The result of this is that the Conservation of Angular Momentum can NOT be conserved under those conditions! An obvious and simple example is where a simple toy gyroscope is placed on its pedestal and then released. A Precessional motion BEGINS as soon as it is released. That Precessional motion necessarily has Angular Momentum, which is easily calculated and monitored. There started out ZERO Angular Momentum in that (Z) axis, and a moment later, there IS Angluar Momentum! (The ENERGY for this new motion arose from the body of the gyroscope FALLING a tiny fraction of a millimeter in the Earth's gravitational field, so Energy IS Conserved. But Angular Momentum is definitely not.
A more complete discussion of this matter is presented in both:
Conservation of Angular Momentum  An Exception or Violation
Precession of Gyroscopes and of the Earth Gyroscope Precession and Precession of the Earth's Equinoxes
The consequences of this regarding electrons in atoms are extremely
important. Even though these violations of the Conservation of
Angular Momentum tend to be very small effects, when they continue
to operate for many thousands or millions or billions of orbits,
the electrons can therefore have their orbital radii changed due
to mutual perturbations of two electrons. Conservation of Energy
is still valid.
The fact that electrons orbit nuclei at extremely high velocities, generally a significant fraction of the speed of light, and their orbital circumference is very tiny, an electron completes billions and even trillions of orbits every second.
This gives plenty of time for any mutual perturbations to occur in the pattern of electron radii. FASTER than any of our experiments can ever detect, such perturbations become completed, and so as quick as we can photograph or otherwise detect the positions of electrons, they are always in the orbits that we expect!
But rather than that being due to any Exclusion Effect, it is actually due to the alteration of the electrons' orbits by mutual perturbations AND the fact that we have "slow eyes" regarding being able to detect such things! So the very specific electron orbits are certainly valid, but the EXPLANATION of why that is is completely different than has always been assumed!
Essentially, this reasoning ELIMINATES the need for even conjecturing the basic premises of Quantum Dynamics!
Conservation of Angular Momentum  An Exception or Violation (Sept 2006)
Galaxy Spiral Arms Stability and Dynamics A purely Newtonian gravitational explanation (Nov 1997, Aug 1998)
Twins Paradox of Relativity Is Absolutely Wrong (research 19972004, published Aug 2004)
Perturbation Theory. Gravitational Theory and Resonance (Aug 2001, Dec 2001)
Origin of the Earth. Planetary Gravitational Resonances (Dec 2001)
Rotation of the Sun (Jan 2000)
Origin of the Universe. Cosmogony  Cosmology (more logical than the Big Bang) (devised 1960, internet 1998)
Time Passes Faster Here on Earth than on the Moon (but only a fraction of a second per year!) (Jan 2009)
Globular Clusters. All Globulars Must Regularly Pass Through the cluttered Galaxy Plane, which would be very disruptive to their pristine form. (Nov 1997, Aug 1998)
Existence of Photons. A Hubble Experiment to Confirm the Existence of Individual Photons (experimental proof of quanta) (Feb 2000)
Origin of the Moon  A New Theory (June 2000)
Planetary Rotation of Jupiter, Saturn, and the Earth (Jupiter has a lot of gaseous turbulence which should have slowed down its rapid rotation over billions of years) (March 1998)
Cepheid Variable Stars. Velocity Graph Analysis (Feb 2003)
Compton Effect of Astrophysics. A Possible New Compton Effect (Mar 2003)
Olbers Paradox Regarding Neutrinos (Oct 2004)
Kepler and Newton. Calculations (2006)
Pulsars. Pulsars May Be Quite Different than we have Assumed (June 2008)
Sun and Stars  How the Sun Works  Nuclear Fusion in Creating Light and Heat (Aug 2006)
Stars  How They Work  Nuclear Fusion. Lives of Stars and You (Aug 2004)
Sundial Time Correction  Equation of Time. Sundial to ClockTime Correction Factor (Jan 2009)
General Relativity  A Moon Experiment to Confirm It. Confirming General Relativity with a simple experiment. (Jan 2009)
General Relativity and Time Dilation. Does Time Dilation Result? (Jan 2009)
Geysers on Io. Source of Driving Energy (June 1998)
Mass Extinction, a New Explanation. A New Explanation for Apparent Periodicity of Mass Extinctions (May 1998, August 2001)
Precession of Gyroscopes and of the Earth. Gyroscope Precession and Precession of the Earth's Equinoxes (Apr 1998)
Ocean Tides  The Physics and Logic. Mathematical Explanation of Tides (Jan 2002)
Earth's Spinning  Perfect Energy Source (1990, Dec. 2009)
Earth's Magnetic Field  Source and Logic. Complex nature of the magnetic field and its source (March 1996)
Earth Spinning Energy  Perfect Energy Source From the Earth's Spinning (1990, Nov. 2002)
Nuclear or Atomic Physics Related Subjects:
Nuclear Physics  Statistical Analysis of Isotope Masses Nuclear Structure. (research 19962003, published Nov 2003)
Quantum Defect is NOT a Mathematical Defect It Can Be Calculated The Quantum Defect is a Physical Quantity and not a Fudge Factor(July 2007)
Atomic Physics  NIST Atomic Ionization Data Patterns Surprising Patterns in the NIST Data Regarding Atomic Ionization (June 2007)
Nuclear Physics  Logical Inconsistencies (August 2007)
Neutrinos  Where Did they all Come From? (August 2004)
Neutrinos  Olbers Paradox Means Neutrinos from Everywhere (Oct 2004)
Quantum Nuclear Physics. A Possible Alternative (Aug 2001, Dec 2001, Jan 2004)
Quantum Physics  Quantum Dynamics. A Potential Improvement (2006)
Quantum Physics is Compatible with the Standard Model (2002, Sept 2006, Oct 2010)
Quantum Dynamics (March 2008)
Ionization Potential  NIST Data Patterns. Surprising patterns among different elements (March 2003)
Mass Defect Chart. (calculation, formula) (research 19962003, published Nov 2003)
Assorted other Physics Subjects:
Precession of Gyroscopes and of the Earth. Gyroscope Precession and Precession of the Earth's Equinoxes (Apr 1998)
Earth's Magnetic Field  Source and Logic. Complex nature of the magnetic field and its source (March 1996)
Earth Spinning Energy  Perfect Energy Source (1990, Nov. 2002)
Earth Energy Flow Rates due to Precessional Effects (63,000 MegaWatts) (Sept 2006)
Accurate Mass of the Earth. Gravitational Constant  An Important Gravitation Experiment. (Feb 2004)
Tornadoes  The Physics of How They Operate, including How they Form. Solar Energy, an Immense Source of Energy, Far Greater than all Fossil Fuels (Feb 2000, Feb 2006, May 2009)
Radiometric Age Dating  Carbon14 Age Determination. Carbon14, C14 (Dec 1998)
Mass Extinction, an Old Explanation. An Old Explanation for Apparent Periodicity of Mass Extinctions (Aug 2003)
Hurricanes, the Physics and Analysis A Credible Approach to Hurricane Reduction (Feb 2001)
Sundial Time Correction  Equation of Time. Sundial to ClockTime Correction Factor (Jan 2009)
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C Johnson, Theoretical Physicist, Physics Degree from Univ of Chicago