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studiot

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Everything posted by studiot

  1. I wonder if you are getting confused about the difference between 1 mole and 0.001 moles per litre ? The first is an absolute quantity ; the second is a concentration. We try to work in integers (just as you say) when considering chemical reactions mathematically. 4Fe + 3O2 = 2Fe2O3 So 4 moles of iron reacts with 3 moles of oxygen to produce 2 moles of iron oxide. But the atomic mass of iron is 56 grammes per mole. So 4 moles is 4 * 56 = 224 grammes, which is a lot of iron to be putting into a test tube or reaction flask. We are more likely to react one tenth of this or 4 * 5.6 grammes (= 22.4grammes = 0.4 mole) with 0.3 moles of oxygen.
  2. A particle of mas m moves at the speed of light ? So m = 0 ?
  3. So how is the question I was asking. In other words why is a bouncing ball restricted to certain gravitational energy levels ? And if it is, then how is it accepting this regular input of 'impulses' ? What you are describing seems more like a classical resonance phenomenon to me.
  4. It is a pity Holmes had all too often added unpleasant remarks to what started off as an excellent comment such as this one. A good question is "Is there a scale of self awareness or is it all or nthing" The OP seems to have envisioned a sudden Skynet type episode where everything came about at once. But many living creatures surely have some measure of self awareness. For instance a pet cat seems to me to be very self aware and cognisant of what it wants. But it is still not as aware as a human.
  5. In what way is your oscillator quantum ?
  6. So ? The pendulum oscillator I posted (Apologies for omitting the sketch at first) has a frequency given by f = [√(g/L)]/2π You should note this is independent of both the mass M and the height H from which the oscillation is initiated. g, L and 2π are of course all fixed. So the frequency is fixed.
  7. If anyone else is interested in studying (playing with) the convergence of the series you are welcome to the actual Excel spreadsheet. It is easy enough to extend to many more terms than 200.
  8. Yes that is the description the LR specialist gave me, thank you for the correction. +1 I seem to remember a similar feature on some Suburbans and/or Blazers we had in Saudi in the 1970s. But others had an automatic method.
  9. Really ? Here are two classical harmonic oscillators with exactly the same frequency but oscillator B has exactly twice the energy of oscillator A as it has twice the mass. As a matter of interest, what would happen to frequency if you kept the mass the same but increased the energy by increasing the original drop height used to start the oscillation ? The difference between classical and quantum oscillators is that quantum oscillators must have a non zero minimum energy or lowest energy level. Classical ones will work right down to zero minimum energy. This is how zeropoint energy and fluctuations arise in QM. Bother. Thank you Swansont for drawing me back to note I missed out the diagram.
  10. I remember my first Land Rover had manually set bosses on the front wheel hubs to activate / deactivate a 'differential lock'. I never properly understood it so I am looking forward to lots of explanation in this discussion.
  11. How are you continuing anything as a new member and this is your only post ? Anyway welcome, what you say is true and you have provided an interesting diagram. But what it does not show is just how slow the convergence is for this method of calculating Pi. Here is a spreadsheet of the series. It takes 16 terms to confirm the first digit alone ( the 3). It takes 34 terms to confirm the second digit (so 3.1) And I only worked out the first 200 terms but it had still not confirmed the third digit (3.14) Many otherwise promising methods have this problem.
  12. 'If' is a very big word. 'All' is nearly as big.
  13. Well I voted for my villain of the piece in my last post.
  14. Nor does anyone else although there have been many suggestions over the years. The best we can do on a Science site is to try andsort out the terminology. Eternity refers to time. Any proposed universe without both of these is a pretty weird place, nothing like the universe we see. So yes so long as there is time there will be space. But I expect you mean is space infinite ? That is a good question, although we actually don't know the answer. We do know that there are models of space in which it is finite but has no boundary. No boundary means it has no end like the surface of the Earth, you can keep going round and round it forever because that has no end.
  15. If you mean the promotion of greed then I don't think you can lay that at the door of Science (or Philosophy either). Personally I would look towards Big Business (though not all of it). But everyone is entitled to their opinion, even a Gloucestershire supporter. 🙂
  16. I think that's a bit of an unfair response So I am going to give a good faith +1 towards a new start to Holmes. BTW I know what a non self aware machine is, - my lawnmower. I have a very sore toe from kicking it into action. But I am not really sure what constitutes a self aware machine. 🙂
  17. Thank you. And are you happy (satisfied) with that self referential definition ?
  18. Except the first one ? Interesting +1
  19. Not being a day to day electrical inspector, I have only occasional experience of this in my work, and under rather specialised circumstances as well. However when we moved into our present house (built in 1938/39) I did face a somewhat similar situation. The previous owner had advertised the house as 'rewired'. This meant that someone had replaced almost all the old round pin standard sockets with square pin types. But on the original power circuitry wiring. Many of the old cables entering the back of the new sockets were in the same bare condition you describe above. Really scary. Conversely the lighting circuit cables had been replaced but the owner did not like the look of modern switches and fittings so fitted the new cables into the existing fittings, but clipped the earth conductor short as the old lighting system had no earth provision. I was sort of glad to have the opportunity to rip it all out and start again.
  20. I am not convinced. It must depend upon your use of the word emerge or emergent or emergence. For instance I would say that the general English expression The Moon emerged from behind the clouds is too wide and open (and just plain wrong) for the Scientific use. But lots of (scientific) folks use it in different ways. As far as matrix multiplication goes we know the commutator is sometimes zero sometimes not zero thus there are circumstances when there is an emergent consequence and sometimes not, depending upon circumstances To me it is the reliable emergence of whatever phenomenon under the some repeated circumstances but equally relaible failure to emerge under different repeated circumstances. I look forward to your definition to match future use against.
  21. Rewarding job, though I don't know where you are it can be interesting to swop regulatory stories. Did you know that in the UK it is illegal for the consumer to connect the neutral to earth, whereas in the US it is illegal not to ?
  22. I thought I had added in the example using space and time. In quantum mechanics by themselves, neither space nor time are emergent as they are a necessary part of the fundamental principles and equations. However the Heisenberg Uncertainty Principle is emergent from this Mathematics as the matrices involved ar non commutative. ie A.B is not equal to B.A where A and B are the relevant matrices, involving space / time. So (B.A. - A.B) is non zero and gives us the Uncertainty Principle
  23. Thank you for your input including this, where you seem to be the only one that fully understands English. +1 Great or greater means enlarged (in some way) as in Great Britain, Greater London, Greater Manchester and so on. I suppose on the questionable principle that 'bigger is better' it has also come to mean better or wonderful (in the sense of very good). The scope and reach of Science has far outstripped that of Philosophy in modern times.
  24. This would not be a short circuit however. It is an example of an overload condition, nor is the intentional use of the heating effect of cuurent in electric heaters, light bulbs etc. Peter has asked specificially about the relationship of short circuits, which are unintentional connections, to heating. There are other undesirable effects of short circuits (without necessarily causing large currents) but which can cause danger to life. This happens when an exposed conductor becomes unintentionally connected to a live supply and then a danger if touched. Metal cases, knobs suffer from this.

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