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studiot

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Everything posted by studiot

  1. can be trained = external intervention.
  2. Of course. Our Earth has an mean temperature of around 15oC (NASA), though the actual value does not matter. There does not exist an Earth with an average temperature of say 18oC. Yet Climate Science is studying such a hypothetical Earth. IOW is is studying that which is not. Sometimes the model we have from analysis such as a simple formula for kinetic energy or momentum can be used to model that which is not for instance the kinetic energy of a 750kg car travelling at 1,000mph. As an aside most questions at the end of chapters in Science textbooks model that which is not.
  3. I understand that you and perhaps iNow limit your definition of Science to analysis and only to analysis of what is. I happen to hold a wider definition. One of the biggest efforts in Science ATM is the study of what is not.
  4. Rome split from Ancient Greece and became a greater nation. America split from England and became a greater nation. What we now call Physics and Chemistry used to be called Natural Philosophy. So Where, When, How and Why did Science split from Philosophy and do we think they are now the greater discipline ?
  5. 'But' suggests you disagree with some part of my thoughts. The rest suggests you think there is little else but models involved in Science and perception but 'models'. I think there is far more to both (as I said) so I am starting another thread to discuss this.
  6. A good question. Yes I think the substrate has most to do with it. But also the nature of that substrate. Don't get hung up on pentiums. They were just a quick example off the top of my head. However the analogy can be pursued further. Unlike cells, transistors have never been known to club together to form more complex circuits. They were placed together by human design, first as dual transistors, then as simple 'integrated circuits', then as LSI (large scale integration) and then as VLSI (very large scale integration). But in no case did the simple placement and connection give rise to anything other than the deterministic output of the designers and then only only their control with the supply of external equipments. There was a process of gradual deliberate but controlled growth in size and complexity. There was no sudden awakening Skynet style. The internet as we know it includes all the satellites, microwaves, fibre optic and copper connections laid over two centuries as well as the support switching stations and so on. Yet the complexity and number of connections is still many orders of magnitude less than that of the human brain and as I already pointed out, possesses no evolutionary capability.
  7. There is a lot more to both Science and perception that this. It really is. +1 for this and for demonstrating proper respectful discussion. But I think it deserves its own thread away from heated discussion and potential heckling.
  8. Can you tell me what you understand 'emergent' to mean ? Perhaps with some example(s) of actual 'emergence'.
  9. Will 'the internet' (as we know it) still exist in the furture or will it have been replaced ? I am assuming the question refers to the internet as we know it. So I am suggesting that the system as we know it is not capable of such a feat.
  10. studiot replied to tylers100's topic in Physics
    Well done, I agree. +1 One way to think of this is to look at the units of each quantity. Entropy has units of energy transfer divided by temperature. Disorder and randomness are pure numbers ie they do not have units. Uncertainty has no particular units of its own and always needs a complement ie ( 'something has to be uncertain' ) and takes on the units of the complement. The victim was murdered between 10 pm and midnight give an uncertainty of 2 hours for instance. So you are left with energy decay which has units of energy transfer divided by time, which would be the nearest.
  11. The maximum current between any two points in any circuit flows along the path of least resistance. When an unintentional low resistance path occurs between two conductors (perhaps one being earth) a very large unintentional current can flow. This develops a large amount of heat as the heating effect is proprotional to the square of current. So (metal) conductors can get very hot and if theya re touching something flammable they can start a fire. Does this help, ask for more if you did not follow any part of it ?
  12. Wet biology has shown the ability to evolve from single cell organisms that are definitely not 'self aware' to creatures like ourselves that (we liike to think) are. I know of no such ability of a bunch of circuit boards, or any other electro- mechanical construct. Changes have all come from human intervantion. Pentium 3s did not evolve into pentium 4s by themselves.
  13. Thank you for telling me some stuff I didn't know. +1 This thread has some use after all. Very interesting example illustration in the cells of the body. I would suggest a correction to the use of the word 'finite' . The body has a finite though large number of cells. Even with the ability to add new ones it will never generate an infinite number. Though finite the number of cells is not specific and continually changing as cells rub off etc and new one are, as you say, generated. So I would suggest not specific or specified instead of not finite.
  14. Out of interest I just had a quick flick through my old textbook Computability and Logic Boolos and Jeffrey Cambridge University Press. I immediately note that most of the undecidable (the correct term is not indeterminate) problems refer to synthesis, not analysis. For example in Ramsey's Theorem there is a perfectly good analytical proof of the existence of certain numbers. But when asked the synthetical question of finding a specific one for specific cases we struggle as there are only a few known sets for very small numbers. Then we have the dyadic undecidability theorem There is no effective method for deciding the validity of an arbitrary pure dyadic sentence. The book abounds with counterexamples to your claim, most of which I had forgotten because this is not really my chosen area of mathematics.
  15. I suspect that you know full well what I am talking about. It is the same part of rational thinking that I use to reply to Physicists who try to insist that Physics must be mathematical. You are only addressing the area of analysis. There is a whole area of synthesis you are ignoring.
  16. At last statement respectful towards Mathematics (and mathematicians). You are not aware of....... It is not appropriate in this thread as it is specific to Turing, but rational thought (including Mathematics) can be divided into two main divisions and here we are dealing with only one of them. The second is so often forgotten in statements about rational thought in Science, Mathematics Engineering and so on, especially by Scientists. I have spent a good deal of my working life dealing with that second aspect, so naturally I often draw examples from there.
  17. So we are all agreed and 'reality' was not part of the OP so we should move on and leave it behind. This claim however presents a problem. I seem to remember you quoted Eddington's little book somewhere, perhaps in a previous thread. How do you reconcile that reference with the pages 24 to 26 of the same book and the story of the cigar ?
  18. That's a heap more helpful than any of your other posts. +1 Now perhaps you would like to describe your idea using the ball ?
  19. If you wish to discuss your offering there is nothing to stop you starting your own thread with a better OP
  20. Yes that is a fair point +1, a pity you are too late to make it to the OP. The OP was rather rambling and ill defined. The only question (point) for discussion I can see is Which has already been answered.
  21. Does this mean you are now ready to listen ? The straightforward answer is 2.
  22. 🙂
  23. Spectacular pictures and great question. +1 (Volcanic) Horseshoe islands are uncommon but not unknown. Here is a link to another. https://earthobservatory.nasa.gov/images/146164/the-island-shaped-like-a-horseshoe As you say the eruption was asymmetric. The obvious dipping of the volcanic layers down from the high side to right under water suggest this. The layering can be traced through the cleft as though a slice of cake was removed. The cleft is wider at the top than the bottom. There is evidence of several less dramatic vertical breaks segmenting the island in the photos. So how did it happen ? Well there are three conceivable mechanism I can think of. Firstly the eruption may have issued through sea bed faults. This would have accounted for the original asymmetry of the eruption. But it would not account for the clefts or large scale vertical joints. Then there may have been a series of small eruptions, perhaps many, building up the layers around a central plug. This is common in such marine islands. One day the central plug was blown clear in a massive explosion and the surrounding ring fell backwards and outwards. This would have increased the ring diameter and perhaps caused the original segmentation. This would also account for the taper in the gap. I say perhaps because jointing is also a common feature of volcanic rock which shrinks as it cools. A determination of the rock type would help identify any such activity. Jointing is most common in granitic and basaltic roc, as opposed to the tuff lavas associated with pyroclastic events. Kartazion has mentioned the third mechanism, subsequent erosion. A gentle correction here to help your English. The word is seismic not sysmic. There is little scope for erosion by the usual forces but I suspect that the lodged rock was the result of rain erosion of the upper dipping layer to the high side of the cleft, causing a large boulder to separate and lodge lower down in the narrower part of the cleft. The rounded shape suggests it is within the reach of the spray from the sea. The general rounded shape of formation itself further suggests soft rock and tropical rain erosion. So the story of this island is entirely different from the famous 'rock of ages' cleft in limestone scenary on the english Mendip hills. Here the result was from the interplay of limestone scenary with first ice and then running water. https://en.wikipedia.org/wiki/Burrington_Combe
  24. Thanks. Do you like Caro Emerald's music ?
  25. I'm guessing a "Tesla Ball" is one of these

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