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Everything posted by Strange

  1. You need to have either a moving wire or (equivalently) a moving/changing magnetic field.
  2. That is off topic. The subject is climate science, not religion.
  3. ! Moderator Note I agree: moved. Its practical function is to perform calculations that are useful in everyday life: from economics to physics or medicine. But pure mathematics is just the pursuit of knowledge I guess. Although it may discover new "tools" whose application isn't known until much later (e.g. "imaginary" numbers, which turn out to be very useful). There is a whole debate around whether we discover mathematics (ie it is something that already exists "out there") or if it is something we have invented. I tend to that latter view, although there are good arguments on both sides. There are some people who think that mathematics is a 'real thing" and that the whole universe just emerges from mathematical rules. I do not find that very convincing. But is sprprising that we can describe the universe so well using mathematics.
  4. I'm not sure what you mean by "bare electricity". Electricity normally refers to the flow of current through wires. (Apart from "static electricity", which is an accumulation of charges on a surface.) Do you mean free electrons moving through space? (Q2 suggests you do.) It doesn't make any difference. The effect of a magnetic field on a moving charge or on an electric current in a wire is the same. The force is basically at right angles to both the direction of movement and the direction of the magnetic field: https://opentextbc.ca/physicstestbook2/chapter/magnetic-field-strength-force-on-a-moving-charge-in-a-magnetic-field/ No. No, they both affect positive and negative charges. But the force is in the opposite direction for each. This should be in a separate thread (in Physics).
  5. Just because you don't like a particular interpretation does not mean it should not be taken seriously. No doubt there are some people who think deBroglie-Bohm they is equally laughable.
  6. You don't give a source for this image but, from what I can read of the text, it would appear to be some sort of pseudo-scientific idea. I get the impression that your ideas seem to have been influenced by a text called "The Secrets of Magnetism". If so, I encourage you to throw that book away and study some basic physics instead. There are a lot of good online resources for learning about how magnets, light and electricity really work, without resorting to works of fiction like that (to be as positive as I can about it).
  7. That is not the equation for the circumference of a circle. That will give you the y coordinates for the (two) points on a circle (with radius r) corresponding to the given x value. You could, perhaps, integrate over a range of x values to get the circumference but it seems unnecessarily complicated because: C = 2 pi r
  8. Their smartphones, watches, etc (including, in future, their clothes) will communicate with the vehicles and the road ... and the streetlights
  9. 0^0 is not well defined, so it is not surprising that you get contradictory results. Also, one of your derivations uses an undefined value (0^-1) and is therefore meaningless.
  10. ! Moderator Note Moved to Biology
  11. Citation needed. Do you think there is any pattern that could not be reproduced using fractals?
  12. Producing things that look similar is not necessarily meaningful (without, perhaps, some deeper justification or some statistical analysis of how similar the results are). Fractals are widely used in computer graphics, for example, to model naturalistic surfaces and textures. That doesn't mean that the objects being modelled are fractals (they aren't), just that fractals are a convenient way of producing similar looking results. Other, non-fractal, methods are also employed to get similar results. Unless you can show that there is more going on than just making pictures that look like something else, I am distinctly unimpressed.
  13. ! Moderator Note Moved to Speculations
  14. I hadn't heard of Pick's theorem before. Based on that, it looks like the answer is at least 3. I can't think of any other way of solving it other than drawing all the possibilities, guided by Pick's theorem. Maybe someone more imaginative will have a better idea. But Pick's theorem does mean that the problem can be restated as: find all closed paths that touch exactly 6 points.
  15. ! Moderator Note Moved to Homework Help. Please note that people can help you solve the problem but not give you the answer. How far have you got yourself?
  16. ! Moderator Note Moved to Physics as this is a straightforward question.
  17. Everything the brain does, including "feelings" (however you define that), require the brain to do some sort of processing of inputs, memories, etc to produce a result. So it is all "computation" (however you define that). Unless you can show that "computation" and "feelings" are actually different things, the question doesn't really make sense.
  18. I assume by "feeling" you mean some sort of "intuitive understanding" (rather than emotions). In which case, it depends how you define "feelings" and how you define "calculation". Which you seem to have understood by the hedging around this terms in your post. Clearly, the brain does some "calculation" that we are not aware of, and we may only become aware of the result as a "feeling". You might want to read Thinking, Fast and Slow where Daniel Kahneman looks at these two ways of thinking, how they each work, the effects they have, etc. https://www.amazon.com/Thinking-Fast-Slow-Daniel-Kahneman/dp/0374533555
  19. Strange

    Blob Theory

    So you can show us the quantitative predictions and how well they match measured values, then? But anyone can make up a story and then claim it passes unnamed tests. As there are no (quantitative) predictions, Joduh can claim that any observation matches.
  20. You can b whatever you want to b
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