7,895 reputation
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bio website sjbyrnes.com
location Massachusetts
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visits member for 3 years, 11 months
seen 14 hours ago

Feb
4
comment Probability of fluorescence: matching of binding energy and incoming radiation energy?
The binding energies are given by the "K edge", "L edge", etc.
Jan
29
answered Why are $2\pi$ factors included in the definition of the reciprocal lattice?
Jan
26
answered Phase shift in back-reflection generated at the mating point of two fibers
Jan
18
awarded  quantum-mechanics
Jan
14
revised Tunable Optical Band Pass Filter
added 121 characters in body
Jan
10
comment Local EPR-experiments with photons in vacuum?
Indeed, the line from A to B is something called a "null interval" which is totally entirely completely unrelated to the concept of "empty intervals" of real numbers in high-school math. These two things are just as unrelated as the "intervals" in music theory and in aerobics. That's why I still think you should mentally rename it a "null shminterval".
Jan
10
answered Tunable Optical Band Pass Filter
Jan
9
comment Local EPR-experiments with photons in vacuum?
Indeed, I am saying that the term "null interval" in special relativity has a very very different definition than an "empty interval" in the sense of intervals of real numbers. If you don't believe me, try looking up the former definition in an SR textbook, and then looking up the latter definition in a high school math textbook. You will see that they are completely different and unrelated.
Jan
9
comment Local EPR-experiments with photons in vacuum?
Sometimes words have multiple meanings. You found an article called "Interval (mathematics)" which has a certain definition of "Interval". But you are wrong to conclude that this is the universal and only definition of the word "Interval". The more relevant article is en.wikipedia.org/wiki/Interval , which proves that the word "Interval" has at least 15 different definitions. The word "interval" in the context of special relativity means something different than the the word "interval" in the context of the number line, just as it means something different in music, or in sports. :-D
Jan
9
comment Local EPR-experiments with photons in vacuum?
When you say "all properties of an interval", I think you mean "all the properties that I intuitively expect an interval to have", but your intuition is wrong because your intuition is based on a lifetime of experience with Euclidean geometry. Well, you're entitled to have the opinion: Anything that deserves to be called an interval must certainly have the following properties...!. But you must understand that other people do not feel this way. That's why I suggest that you mentally replace the word "interval" with "shminterval", a made-up word which is therefore free of your preconceptions.
Jan
9
revised Local EPR-experiments with photons in vacuum?
added 13 characters in body
Jan
9
answered Local EPR-experiments with photons in vacuum?
Dec
14
answered Spectral properties in Solid state physics
Dec
10
comment Is there a relation between (non-) existence of magnetic monopoles and thermodynamics?
I don't understand what point you're trying to make. Are you trying to prove "If there are magnetic monopoles, nothing is thermodynamically reversible?" Or "If there are magnetic monopoles, then everything is thermodynamically reversible?" Or "If there are magnetic monopoles, the second law of thermodynamics is false"? Or what?
Dec
10
answered Is there a relation between (non-) existence of magnetic monopoles and thermodynamics?
Dec
9
awarded  Guru
Dec
9
accepted Why does a thermoelectric generator need both p and n elements?
Dec
8
answered What is the right order of creation operators?
Dec
8
answered Stimulated emission direction
Dec
8
answered Faraday's paradox