studiot

https://www.appliancecity.co.uk/news/microwaves/what-should-you-never-put-in-the-microwave/

As any microwave user knows, sugar also gets hot. Sogar softens at around 110oC, is melted around 135oC and burns at around 170oC.

Since we don't live in an Anne McAffrey 'Pern' universe and space is what lies between things, why is that space not 'unoccupied' ?

So what's in the distance between things ?

Are you suggesting that you cannot have unoccupied space ? I think a good question to consider is " Is there any (detectable) difference between occupied and unoccupied space ?" Another good one is the Principle of Least Energy, which appears to be in force at all scales and is the justification for Higgs Theory at the smallest.

I don't think you will find many in agreement with these claims.

Yes but conditions in a working microwave oven are not those of thermodynamic equilibrium.

Ok so physics used to be fun and here is an old fashioned experiment we did at school. Elihu's Exeriment is particularly fun. These should help with understanding transformers and what happens when you remove the keepr or I part from the Es and Is frame. I note that this is still a legitimate experiment in some places.

Thank I was not criticising your website or its presentation, just commenting on the physics. Thank you for offering further thoughts. This may help us bridge the gap between your ideas and conventional ones. In the original linked videos you mention but I could not see the capacitor. The later video doesn't mention it or show it. In the circuit diagram above the capacitor is in series with a transformer and a motor (and the mains supply). Consequently the entire supplied current must pass through this capacitor. Hopefully it is rated for these currents. In the original vids a current of around 2 amps is mentioned. The later vid has around 5 amps, reducing to 4. something when you add series inductance via the second motor. This is to be expected and shows that it is inductance, not resistance which controls the current. As regards power your metering is not set up to show the change in phase angle between voltage and current, as additional circuitry is added. Showing this would be enlightening for all concerned. I do not see any scope for mutual inductance between the two motors in the last video. Mutual inductance is, of course, a way to get field line interaction.

Perhaps that is why no one managed to answer it. It was so well disguised. Thank you for posting this. It appears a perferctly normal circuit that can be analysed by the normal processes of electrical engineering. In fact your video short circuiting the transformer is a standard method of measuring one of the important circuit parameters. However it does not help to use incorrect terminology thus Nonsense. The field intensity is controlled by the magnetic properties of the various parts of the circuit and the current flowing. Resistance is not a magnetic property. If you have a question please ask it more clearly.

That's just word fluff. One scale's local is another scale's global. See these discussions about invariance, scale and relativity. https://forum.allaboutcircuits.com/threads/the-difference-between-invariants-and-constants.29563/

Does your use of the word reality bear any relationship to your use of the word real ? Both seem very hand wavy to me. My intent is to use words as they are generally defined by the standard model. However, the further down the rabbit hole this material finds itself the closer it gets to philosophical terminology. So what do you mean by real ?

Does your use of the word reality bear any relationship to your use of the word real ? Both seem very hand wavy to me.

Hello and welcome. I did was the videos and other stuff on the website you linked to, although it is a requirement of this forum that I should not need to. I didn't see anything unexpected on the demos, though the explanations were somewhat hazy. One thing that was not clear to me was your relationship to that website ?? Is it your site or are you a third party asking for our opinion on the material presented there ? There are several things to note about field lines. There is no such thing as 'electromagnetic field lines'. Hence there is no such thing as 'electromagnetic field lines'. There are electric field lines and there are magnetic field lines which are quite different, although there is a connection between them. Field lines from a single source do not cross each other. If any field lines cross, they must be caused by a another source. Electric field lines start on a charge and end on a charge or go to infinity. Magnetic field lines start on a pole and end on a pole, if there is one, or form closed loops. Unlike electric fields for which a polarity can be distinguished, there is no such thing as a north magnetic field or a south magnetic field. Such fields would require the existence of 'magnetic monopoles' , which although they make the maths easy, have been sought but never observed. Big prize money is available for anyone who demonstrates one. I think the website demonstrator would do well to show a better understanding of transformer action. This is widely misunderstood in the difference between the activity in the primary and secondary. Final point, the explanation of the circular magnetic field concerns to Direct Current, but transformers don't work at DC. The supply is actually alternating and so the magnetic field will be reversing at line frequency, which is why the little button magnet was jumping around in one of the videos.

+1 In my opinion History is a subject that shoud be explored when the 'student' is read, not some collection of vaguely related facts and figures rammed down a child's throat for an examination. Having spent my working life addressing the questions 'what do I need to know or figure ?' in order to get this answer or that result I am finding in retirement the pleasure of exploring the questions ' How did we get there and what insights can be gained from this knowledge?' I think that these insights may well be more valuable to pass on that say the details of the aerodynamics of biplanes, which knowledge in near obsolete these days.

I'm not hiding behind anything - I've been away - , but this is the wole point of 'foiliations' which you seem to misunderstand. Yes indeed a foliation is a way of selecting a subspace ( sub manifold) of a given one (manifold), exactly as you have said and slicing is a good word. BUT This is not necessarily the case. A simple example relates to the laws of Mechanics, which are different in spaces of different dimension. And your 'slices' are another way of invoking the reduction of dimensionality map I referred to earlier. Whether presented as tensors or otherwise the differences in Mechanics between dimensionality 1, 2, 3 and 4 have been taught to Engineers, Geologists and other disciplines for a very long time.

I'm away on holiday tonight but you folks might find this interesting reading.

So you asked a question, didn't want the answer. Oh. Marcus in particular and also Mordred like to deal in the abstract. I like to ask the question "What does that posh statement mean, can i construct a simple down-to-earth example ?" I offered you such but thank you for not wanting it.

I thought I answered your actual question, given in your post #2, shortly after you posted it. But I do not seem to have a reply.

Firstly I agree with TheVat that world is the wrong word for your concept. From your example list I wonder if you are thinking of self contained entities rather than scale or size ? Please expand on your idea of 'environment' and 'inhabitants'. I can see most of them in your examples but how does this relationship connect globes and energy ? Finallly I agree with MigL in wondering what the purpose of all this is ?

No, any more than the bijective map R maps to Rn is although it is an index since they have the same count of members. A coordinate system has a richer structure to allow for the connections between the points in the form of functions, derivatives etc.

It is quite common to be confused about water terminology. When studying the literature you will find that some books define water in the purely gaseous state as vapour and others (particularly engineers) as steam. The gaseous state in common terms is also called more technically the gaseous phase. It is also common for water to exist as a mixture of a gas and a mist of fine liquid droplets called an aerosol. Engineers call this wet steam and the water as a gas on its own dry steam. Gaseous water is invisible to the eye, all the white mist you can see is due to the aerosol. When talking about properties you have to consider the components of the mixture separately, as they have different heat capacities etc.

A little digging revveals the following: The most common mw oven uses 2.45 Ghz or 12 .236 cm https://www.translatorscafe.com/unit-converter/en-US/calculator/em-spectrum/ Absorbtion data reveals 1.35 cm radiation corresponds to 22.2 Ghz radiation

Nice side issue. When watching nature programmes, (Attenborough, Countryfile and others ) they often highlight a particular bird, creature, insect or plant which can only feed and /or breed in a certain place or on certain foods. It seems to me that such specialists are more often than not on the endangered species list in our world.

You might find this one simpler and more digestible.