Recent content by PeroK

  1. PeroK

    B How do quantum phenomena affect macroscopic phenomena?

    Why would you think that?
  2. PeroK

    B How do quantum phenomena affect macroscopic phenomena?

    What do you mean by quantum indeterminancy?
  3. PeroK

    B Innumeracy in public media today

    It may have been more that the US hadn't yet tired of democracy and begun to long for barbarism.
  4. PeroK

    B Innumeracy in public media today

    Poor Tricky Dicky was a man before his time. If he was President now, he could just have dismissed Watergate as fake news and carried on.
  5. PeroK

    B Help answer student question about infinity?

    You've taken completely the wrong attitude by favouring your own homespun ideas. That's no basis for discussion. Mathematics is what it is. It's not going to change because you don't like it or can't understand it. If you want to learn mathematics we may be able to help. If you want to...
  6. PeroK

    B Innumeracy in public media today

    I think the lack of understanding is genuine. There are some subtle examples as well. For example, the postal service in the UK (Royal Mail) had a target to deliver 95% of letters posted before noon on the following day. A consumer organisation decided to test this by posting a random...
  7. PeroK

    B Innumeracy in public media today

    A percentage difference only really makes sense when the difference is relatively small. In this case, her salary is about 0.7% of his. It's unusual to say that his salary is 13,500% more than hers. That's not a case where a percentage makes much sense, compared to simply saying 135 times...
  8. PeroK

    B Innumeracy in public media today

    What's worse than the innumeracy is how proud they all are of it!
  9. PeroK

    B Innumeracy in public media today

    What they meant was that his salary is approx 137 times larger than hers. 137 being, of course, the fine structure constant!
  10. PeroK

    I Handshake paradox involving the Starship Enterprise

    That's absolutely correct! Newtonian physics: absolute space and time; but no invariant speed (of light). Special Relativity: invariant speed (of light), but the Lorentz Transformation between inertial reference frames; and, spacetime as a single four-dimensional entity. Both these...
  11. PeroK

    I Handshake paradox involving the Starship Enterprise

    Good idea. At the moment, you are stumbling about in the dark without understanding the nature of space, time, motion and reference frames.
  12. PeroK

    B Help answer student question about infinity?

    Then there is nothing to talk about! You may conclude that mathematics doesn't exist. That has the advantage of saving you the time and effort of learning mathematics!
  13. PeroK

    B Help answer student question about infinity?

    You are falling into the error I pointed out above: "Let ##p(x)## be a uniform probability distribution on ##\mathbb R##." No such function ##p(x)## exists. Just saying the magic words "uniform distribution on ##\mathbb R##" doesn't ensure the existence of such a mathematical object.
  14. PeroK

    B Help answer student question about infinity?

    No such distribution exists. Only for a finite rope.
  15. PeroK

    B Help answer student question about infinity?

    Mathematics involves the study of infinite sets. I don't know where you got the idea that infinite sets don't exist. The natural numbers are an infinite set, for example.
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