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Everything posted by studiot
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Hello quiet. I suggest you have another go at the English of this to try to explain better what you mean. How about a diagram? Have a look at my question to ismail, who seems to have deserted us. There is an important point behind it which shows why the trampoline picture is a bad one.
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So no response to my vector field question then, and we still have to go offsite to read any replies?
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Perhaps there is a language difficulty? I didn't say you are imposing on anybody. And I didn't say your proposition is wrong. I did say your proposition is interesting and about an important subject. I did identify two separate aspects of it. Firstly the actual calculation of a square root, correct to a specified number of digits. Secondly the use of that formula in place the square root in some larger formula. Finally I noted some of the things others have been looking at. Are you not interested in seeing what others have done as well as telling them what you have done?
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Can you post the question? 26 and 8 are not isotpic masses for chlorine or any element. Nor does any element have 26 protons and only 8 neutrons, or the other way round.
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The link I gave you in your other thread should answer this one as well. An electron beam can be deflected by electrostatic or electromagnetic fields. The electrons are travelling too fast for there to be a measurable gravitational effect over the distances of a typical cathode ray.
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Yes I wish they woulkd have invested some of the North Sea revenues in many more reservoirs like the pumped storage Dinorwig (Wales) and Cruachan (Scotland) But that would have been too far sighted for our governments. Most dams have a hydrogeneration facility at least for the water supplier's own use.
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It's really very simple. Alpha particles are really helium nuclei and are double positively charged. Thus they have by far the largest particles of the three (by many thousands of times compared to beta particles) Furthermore the double [positive charge makes them attractive to other charged particles. Beta particles are electrons and therfore carry a single negative charge, and as noted are much smaller than alpha particles. Gamma 'particles' are really photons which are very small indeed and have no charge or mass. So they travel at the speed of light. As a result of these facts the speeds are gamma >>> beta > alpha. If you send a stream of particles through air the chances of them hitting something decrease with increasing speed and decreasing size. http://chemed.chem.purdue.edu/genchem/history/rutherford.html
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Are you aware of the difference between a tide which is the periodic vertical movement of water due to the Moon ( and other) gravities and a tidal stream which is the associated periodic horizontal movement of water which must take place if the water surface moves up and down. One difference is that using the tide means impounding water behind expensive barrages as the tide spends long time periods not changing much in level, Whilst a tidal stream is always flowing back or fore. Better a tidal stream generator does not need any head behind it, the water naturally flows through the turbine. Nor does it offer obstruction to navigation since it just sits on the bottom. The bank, StudioT uses financed the world's first such generator at the entrance to Strangford Loch in Ireland. https://en.wikipedia.org/wiki/SeaGen Other advantages are that you can add horizontal generators one at a time and they start producing revenue the moment after installation With tide generators you have to put in expensive infrastructure first (the barrage) and you don't get any money back until that is finished. Here is another comment. The UK has large areas of the Atlantic, Irish and North seas within its coastal waters. It also has a large and increasing number of expensive to decommission redundant oil rigs. If our pusilanimous government were to designate a suitable parking area for redundant oil rigs they could be parked in a row and have wind or current generators mounted on or under them. This make further use of them, out of the way. A further benefit would be that it is expensive to lay lots of cables to bring the generated energy ashore. Such a parking area could need only a single connection.
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Agreed +1 In the UK case it is due to a shortsighted series of governments whose attention is focused firmly on its own navel. The nearest these politicians come to tidal anything is the Thames protection barrier against the tide.
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I would like to make it clear that the subject itself ((square ) roots) has been of great interest and importance for thousands of years and remains so today. So I wish to clearly separate discussion about the subject from discussion about some associated claims you have made which are arguable. Yes the babylonians are the first recorded people to have considered this Fast forward to ultra modern times to look at it from a totally different point of view. You seem to be implying that you are offering not a calculation of the numerical value of a square root, but an exact replacement for the conventional square root when it appears in a formula, and further claim it is somehow simpler than just leaving it as a square root. In what way is this better? We often leave irrational numbers that are infinite decimals if expressed in decimal form, as just that. For instance \pi . Similarly we leave \sqrt 3 just as it is to avoid an infinite decimal and make it exact. What could be simpler? You have also indicated that you think series methods of obtaining trigonometric values are the only ones available. There are others. In fact there are proceedures for constructing exact tables starting with trig functions and angles that have exact values and using trig transformation formulae for sum and difference and multiple angles. You would find these in Hobson for instance. Finally, if you are allowed one press of a button to obtain these trig values, why is that preferable to one press of a button to obtain the square root directly from the same calculator? After all, that calculator can never be more accurate than its digits and algorithms. The more algorithms you employ the greater the compounding or build up of error.
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Thanks for this link to discuss. +1 In view of the recent dismasting of the round the world yacht'swoman are they totally safe?
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Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
I don't understand what you are saying. Sure the question is very simple? Is there a power source of any description, other than the 2 D cells, connected to the circuit, either directly or indirectly? -
Thank you for the link, John. +1 This is not a calculation method only it is a fundamental mathematical law and formulas that illustrate the incontestable relation between the square root and the trigonometric functions according to a specific pattern discovery and exact formulas, which is the sole pattern known for the square root according to my knowledge since the Babylonian. you may not consider it for square root calculation but it is not possible to ignore a scientific discovery and a fundamental mathematical law which is proved to perform unlimited mathematical operations. You can still use the sophisticated program and methods to calculate the square root since the main purpose of the formula is not that This is not an answer to my question about surds. How about a simple one eg 2\sqrt {\sqrt 3 } Why should anyone read it, whilst you choose not to read the forum rules?
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Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
So is the power source yet another thing you haven't told us about before ? -
You are new here and you obviously haven't read the rules like so many other don't. So I will help you by posting the abstract of your thesis and commenting upon it. But I will ask the moderators to explain the rules. 1) Not all methods of root extraction require an initial 'guess'. There is a perfectly satisfactory rote method a bit like long division, though admittedly it is multi step as is long division. You would probably need to look up some algebra texts from 1890 to 1920 to find it though. 2) Your methods claim a single step, but appear to require an inexhaustible supply of more advanced functions such as trigonometric ones to achieve this. How many steps does the computer or calculator execute to obtain these, and what would do without them? What about the accuracy obtainable for these? For instance the tangent changes very rapidly indeed near its singularities. Suppose you wanted the square root of the difference of two similar numbers with one known to a large number of decimal digits, so the difference looses many decimals? How would your formulae be successful then? 3) Suppose the real number you wish to extract the root from is a surd. How do you handle those?
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Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
OK so I expect what you have is called a Joule Thief circuit which can be made with a Rodin coil (AKA vortex coil) https://en.wikipedia.org/wiki/Joule_thief https://www.google.co.uk/search?biw=1366&bih=622&tbm=isch&sa=1&ei=r2MKXOegJYLhxgOKz4GYAw&q=Joule+thief+rodin+coil&oq=Joule+thief+rodin+coil&gs_l=img.3...165288.176040..176938...1.0..0.2466.5062.13j4j4j9-1......0....1..gws-wiz-img.4H3BLma4Onc -
Thank you each for your contributions. We have regulations coming out of our ears in the UK They are just not enforced. Worse it seems in this case they were not even checked for compliance with the regulations. Even worse the perpetrators appear to have sought to hide their wrongdoing by 'gagging' clauses in exchange for meagre compensation, once found out. That is the result of a 'seller's market' I put this in Politics because I think that includes the science of (science ha ha) economics. One thing 'free market economics ' assumes is that the seller and buyer have equal bargaining power which is almost never the case. So the politics question here is how far is the balance tilted towards the sellers and is it getting worse?
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Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
I mentioned an earlier thread, I thought due to Capiert,about connecting D cells, but I can't find it at the moment. However I did find this. Have a quick look through it and see how the information is presented. (look at the many pictures) -
Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
No, one coil will not increase (or decrease) the voltage. It can, however lead to switching transients which can be of quite high voltage. I'm sorry but you have lost all credibility with me, as well as wasting a substantial amount of my time. In particular you concealed the fact that there was some connection to a coil but have not told us how this coil was connected. You also initially omitted to mention the cabinet though I don't see how the absence or presence of a cabinet can affect the activity of the circuit. So what else are you not telling us ? -
I appear to be on the way out the door .....
studiot replied to coffeesippin's topic in Suggestions, Comments and Support
+1 -
Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
Yes you are right, I did. But that was a hypothetical situation that you might have misread the meter (it happens) and your reaffirmation without proof has not increased confidence in your supplied information. Particularly in view of these two statements followed by this These statements contradict each other, Are you trying to trick us? So you can't say how long the D cells were supplying 40 mA for. But you didn't mention this at the outset? And now you expect us to believe that D cells which are Pull the other one. -
Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
Why are you saying this? No one quoted 75 mA. How do you know? If you were there watching, why did you not take intermediate readings? Also have you repeated the test and found the same result? No you haven't. You have left too many questions unanswered, both from myself and others for verification. What is the type number of your LED? Do you have any photographs of the setup and the meter readings? Not long back there was a thread about parallel/series connection of batteries. In order to help I posted several photos and closeups of the meters in different configurations. Perhaps someone will remember this thread. -
Do batteries increase milliamp as long as there is a load?
studiot replied to DARK0717's topic in Speculations
I seem to remember that many LEDs have built in limiting resistors. -
Good, you are talking about something scientific. Now if you would be so kind as to link your comments to the thread topic rather than sneering at the efforts of others (teachers of elementary science in this instance) we could move towards a proper discussion. You never know, if you tried hard enough you might actually be able to support your case with evidence. By the way, Hooke's Law was a simple something that came to mind as an example. I did imply you could choose your own. Your scenario was not the one I had in mind, schoolboys are much more likely to measure tension or perhaps flexure, since compression experiments are much more difficult to handle and control and potentially more dangerous.