Recent content by Aidyan

  1. A

    B Definition of a random variable in quantum mechanics?

    It was in a personal conversation. Nothing that can be referenced or linked. I only want to know whether the above definition is internally consistent or not.
  2. A

    B Definition of a random variable in quantum mechanics?

    Knowledgeable people. But I guess they didn't get the point I was trying to make. I will stick to the above definition.
  3. A

    B Definition of a random variable in quantum mechanics?

    That was my point too with those who doubted my exposition. I don't see any reason to dwell into non-frequentist formalism and/or interpretations if we simply want to discuss the statistics, say, of the photon distribution on a detection screen in a double slit experiment, the measurement...
  4. A

    B Definition of a random variable in quantum mechanics?

    Of course. But the discussion is set in a purely experimental context that discusses measurement outcomes only. Say, on how to define a discrete probability distribution for the interference fringes at a detection screen of the double slit experiment without necessarily recapitulating all the...
  5. A

    B Definition of a random variable in quantum mechanics?

    In a line of reasoning that involves measurement outcomes in quantum mechanics, such as spins, photons hitting a detection screen (with discrete positions, like in a CCD), atomic decays (like in a Geiger detector counting at discrete time intervals, etc.), I would like to define rigorously the...
  6. A

    I Is Brownian motion a purely classical phenomenon or is it also quantm?

    A water molecule is as tiny as 0.3 Angstrom. I would expect that quantum effects play a role. I'm wondering if its Brownian motion in a fluid is determined only by classical thermodynamics or if its collisional processes must take into account also quantum scatterings or other effects like...
  7. A

    B Light element abundances for He3/H?

    I'm trying to understand the Schram plot, which is the graph of wiki here: https://en.wikipedia.org/wiki/Cosmological_lithium_problem I do not understand why the yellow box (the observed light element abundance) for H3/H (red stripe) is absent? Is there any reason for this?
  8. A

    B Occam's razor in science: all-time practice or modern fashion?

    That was my question (read to the end). If there is historical research that highlights if and when it was more or less in fashion? From my interaction with scientists, especially when it comes to issues of philosophical nature, nowadays, they tend to resort much more frequently than in the past...
  9. A

    B Occam's razor in science: all-time practice or modern fashion?

    When I went to college, more than 30 years ago, as far as I can remember, nobody was talking about the use of Occam's razor in science. Reading the works of past scientists, I rarely see them invoking principles of parsimony, let alone cite Occam's razor. Yes, Newton, Einstein, and few others...
  10. A

    Other Is the IJCAA a Reputable Journal for Astronomy and Astrophysics Research?

    Is the International Journal of Cosmology, Astronomy and Astrophysics (IJCAA) (https://madridge.org/journal-of-cosmology-astronomy-and-astrophysics) a respectable journal? I received from them an invitation, and it looks like a journal that could fit for something I would like to publish...
  11. A

    How far are we from producing artificial cells in the lab?

    Synthetic biology is a rapidly growing field of science that aims at redesigning organisms for medical and agricultural applications, by means of biotechnology, genetic engineering, molecular biology and other methods by chemical, biological or computer engineering. As far as I understand it...
  12. A

    Why do we consider Neanderthals a different species than humans?

    Ok. So, the concept of "species" is a very questionable one that has not a scientific and clear-cut correspondence in the real living world. But then why are we making the distinction between homo sapiens and home Neanderthalensis in the first place? It is said that "compared with modern...
  13. A

    Why do we consider Neanderthals a different species than humans?

    According to wiki "Neanderthals are an extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ago." But according to wiki again: "A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating...
  14. A

    Is it possible to deduce the software from the hardware activity?

    Ok... wait a moment. The conversation moved on the CPU but the originally it referred to the entire PC. The clever mind that knows everything about physics and also logic and math but nothing about human computing (ET or whoever) has nevertheless access to the hard drive, the SSD, or whatever...
  15. A

    Is it possible to deduce the software from the hardware activity?

    But can someone not deduce from a series of instructions executed by the CPU a specific high-level instruction? Say, for instance, a set of assembler instructions representing a sum = var1+var2? (just Imagine an ET dealing with a human build PC.) If not, is that due to the fact that it is much...
Back
Top