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234123
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location Greece
age 74
visits member for 3 years, 10 months
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Retired experimental particle physicist.

The picture is a fayum . It looks like aunts and cousins of mine :).


Jul
4
revised In which direction do gravitons travel? Do they originate from mass or are they collected by masses?
changed to fit the edits of question
Jul
4
comment In which direction do gravitons travel? Do they originate from mass or are they collected by masses?
@ChrisWhite followed your lead
Jul
4
answered Photons-Wave/particle duality
Jul
4
comment Is there an inherent difference between solids, liquids, and gases?
There is something of the oxymoron in your " much more meaningful to talk about phase transitions than the reality of states of matter in themselves." How can one have transitions from vaguely defined phases? The fact that there are similarities between some behaviors of two phases does not mean they can not be well defined, imo. They are defined by the dissimilar behaviors.
Jul
4
revised Stupid yet tricky question: Why do we actually see the sun?
added 234 characters in body
Jul
4
revised Stupid yet tricky question: Why do we actually see the sun?
added 983 characters in body
Jul
3
answered Stupid yet tricky question: Why do we actually see the sun?
Jul
3
comment Can we apply Schrodinger equation in Newton Gravitational potential and derive the deterministic Newton's gravitation as a special case of it
But a neutron is a composite object and it has spill over diagrams electromagnetic and strong which will affect how a neutron behaves at short scales.
Jul
3
revised Can we apply Schrodinger equation in Newton Gravitational potential and derive the deterministic Newton's gravitation as a special case of it
added link to relevant paper
Jul
3
comment Can we apply Schrodinger equation in Newton Gravitational potential and derive the deterministic Newton's gravitation as a special case of it
Your answer does not address the question, whether a Hydrogen atom solution of the shroedinger equation could exist. It addresses a different aspect, the effect of gravity on the solutions.
Jul
3
comment How should observers determine whether they can be described as being “defined on a Lorentzian manifold”?
@BenCrowell The fact that we are talking about Lorenzian manifolds is because experimental data made it necessary. Otherwise we are playing mathematical games detached from the physical world.
Jul
3
comment Can we apply Schrodinger equation in Newton Gravitational potential and derive the deterministic Newton's gravitation as a special case of it
But that is exactly what I am saying: if you only have gravity then you can have a potential solution similar to the hydrogen atom. But if we suppose neutral composite objects they will have other forces entering short range and the Schroedinger solutions cover from 0 to infinity. Thus one should have completely neutral to the other three interactions point particles.
Jul
3
answered Can we apply Schrodinger equation in Newton Gravitational potential and derive the deterministic Newton's gravitation as a special case of it
Jul
3
answered Is there an inherent difference between solids, liquids, and gases?
Jul
3
answered How should observers determine whether they can be described as being “defined on a Lorentzian manifold”?
Jul
2
comment Accelerating electrons via microwaves
this is a lecture on the physics of accelerators, including RF cavities. cas.web.cern.ch/cas/Baden/PDF/Physics-Accelerators-2.pdf .
Jul
2
comment Heisenberg Uncertainty Principle: Which formula is correct?
I found a derivation without the 2 in Merzbaher's Quantum Mechanics, 1961 using fourier analysis of wave packets. @ChrisWhite acurate quantitative physics with inequalities is almost an oxymoron.
Jul
2
comment Is the neutral pi meson a relativistic electron positron pair?
You should leave a link. The short answer is that any such models might be squeezed to fit a particular proposal, as this one, but will be unable to explain a multitude of similar data ( which the standard model does). This particular proposal is dead from the start because the electron and positron will disappear into photons, as has been seen experimentally with the positronium. en.wikipedia.org/wiki/Positronium . The invariant mass of the positronium is very much smaller than of the pi0 and no pi0s were seen in e+e- accelerator experiments .
Jul
1
revised Why is quantum mechanics based on probability theory?
added 2 characters in body
Jul
1
reviewed Approve suggested edit on Why are they called “cyclic” coordinates?