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I am very poor at English, so I used ChatGPT to translate my question. My question is here (Is my idea right?): Is it possible to conceive concepts like a coordinate system in a completely empty space? I believe that without some reference, even establishing an origin becomes impossible. In a space where there is just ... | 0 |
I have been looking up at available database that had dielectric constants for metals since I need them for my research and wanted to get an idea of what the values were before I focus on actually calculating them numerically if ever it is needed for my research. Thankfully I was able to find this website https://refra... | 0 |
If a quantum particle is described by a certain wave function and we express it as superposition of for example its possibles energy states, after we measure it the wave function collapses and we observe the quantum particle as having a certain energy. I have a couple questions. No matter what happens to that particle ... | 0 |
Reading Harris' Modern Physics, specifically the classic example of Anna holding two lightbulbs on a moving train. I find myself confused about this passage: Before moving on, we emphasize a vital point: The preceding arguments had nothing at all to do with Bob's specific location in his frame or the time it takes ligh... | 0 |
Context: I would like to talk about how a book questions the reader's traditional, conservative values about family structures. I want to say we are introduced to a shared household wherein there isn't a typical nuclear family structure, the children are not trained in table manners and everything is loud, lively and d... | 0 |
Background: I tile lidar and photogrammetry products as part of my job. Project areas are typically single polygons outlining an area, and can be quite irregular in shape. Overall there is a lot of data and I am required to achieve a maximum file size per tile by creating square tiles that cover the project area. I kno... | 0 |
Levitated pits were introduced after after solid pits. In this design the tamper is separated from the fissile with an airgap. From the Nuclear Weapon Archive: The original Fat Man pit design used a Christy solid plutonium core, surrounded by a close fitting natural uranium tamper. The Sandstone devices all replaced th... | 0 |
In table tennis it is often desirable to produce as much spin on the ball as possible using a glancing contact. (The rubber covering of a table tennis bat is typically highly elastic and has a high coefficient of friction.) Anecdotally, the view is sometimes expressed that acceleration at the point of contact is more i... | 0 |
One English rule is to hyphenate two or more words when they come before a noun they modify and act as a single idea, called a compound adjective. This is the most common use of the hyphen I've seen. For example: A non-cloud platform Some cloud-based platforms What happens when there are three adjectives before a noun?... | 0 |
I heard that Lagrange mechanics can be derived from Newtonian mechanics, and Newtonian mechanics can be derived from Lagrange mechanics. I've heard many times that they have equal explanatory power. But I encountered that there is a tricky point in deriving the law of conservation of angular momentum in Newtonian mecha... | 0 |
I have problems in understanding the terminology used in Sylvester's Criterion about the "sign" of a matrix. I got the "positive-definite", the "negative-definite", the "indefinite" and "non-definite" (the last one is when the determinant is zero, whilst the penultimate refers to two eigenvalues with different signs). ... | 0 |
My current level of maths does not allow me to understand any of the proofs I was able to find online for the Fundamental Theorem of Algebra. I find it very unsettling having to continue learning about polynomials without being able to grasp such a fundamental property of them that is there exists a complex root for an... | 0 |
I've been thinking about the critical point of water, which has three distinct and specific properties: critical temperature, critical pressure, and specific critical volume. However, when I draw a PV and TV graph I can't seem to think of any way in which to bring the water to its critical point because in order to get... | 0 |
I am reading up on Christol's theoreom and an important part is that k-uniform transducers (where k is somehow related to prime numbers) preserve the algebricity of a formal power series (taking the coefficients as a sequence). So basically, we start with a formal power series that has roots (my friend told me that alg... | 0 |
Is there a conceptual problem in formulating of Liouville's theorem and the BBGKY Hierarchy for classical field theories? I always see treatments of Lioville's theorem only in the context of classical mechanics. I also know that most references treat linear response theory only for classical mechanics and do not touch ... | 0 |
When we calculate the excess pressure on the concave side of the meniscus of the liquid surface formed in a capillary tube, we balance the force by the atmospheric pressure, force by the pressure on the the side of the fluid , and the force due to surface tension, to derive the expression for the excess pressure on the... | 0 |
I'd like to get some clarity about how nice the problem of decomposing semigroups using the wreath product is compared to the problem of decomposing groups, and where this apparent difference in niceness comes from. Looking at the Krohn-Rhodes theorem for finite semigroups, one can decompose a finite semigroup as a wre... | 0 |
I have been trying to define the notion of a product of second-order classes using (finitary) second-order and if needed third-order logic. It seems to be possible to define the product of finitely many classes, because I can just express this using a finite second-order sentence. The problem is that, when I try to def... | 0 |
Im reading make: electronics, and I have investigated a little bit about displacement current and how a change in electric flux can create a magnetic field in a vacuum. A can understand that, however there is one effect which I don't comprehend the physics behind it. The effect that I'm talking about can be resumed in ... | 0 |
I am seeking answers from experts in mathematical logic about the amount (if any) of university mathematics I need to know in order to understand mathematical logic and later hopefully do meaningful (independent) research on the subject in general and Godel's Theorems in particular. I am proficient in high school math ... | 0 |
My understanding is that the word means a rephrasing of something the person has said in expressing the same sentiment or idea. But I think people use the word to mean essentially, say something in a similar way to mean something else. A simple example: Marge is talking to a bullied Bart: "If they beat you up, I do not... | 0 |
I'm currently working as a (undergrad) TA for a mutlivariable calculus class and while covering the topic of multivariable differentiability, one of our students suggested that it'd be nice to have some actual functions we could use as examples to navigate how the theorems can be used to both establish differentiabilit... | 0 |
I have read this question (no answer, just comments): Light, including pulses of light, consists of many photons. A very short pulse has a wide range of frequencies. See The more general uncertainty principle, regarding Fourier transformsA single photon can also have a long or short duration, and a narrow or wide range... | 0 |
In practical engineering we are limited in the upper temperature of thermodynamic cycle due to the material properties. So, after the max temperature is fixed, we want to make our cycle as close as possible to a Carnot cycle with the same max temperature. It is clear that the compression and expansion should be adiabat... | 0 |
I have viewed the definitions of the Hubble Sphere and related cosmological concepts, as well as various explanations, yet Im still struggling to comprehend a full visualisation of this, which I would prefer instead of taking its word for it. To phrase the question that would most help me, the following follows: so fro... | 0 |
I understand that infalling objects reach the speed of light at the event horizon. Any associated clock would be observed to stop, according to SR. But isn't the key here 'observed'? An infalling observer at the event horizon would observe a remote clock to stop. Who is to say which clock stops. No clocks actually stop... | 0 |
This paper has the following abstract: We theoretically consider a graphene ripple as a Brownian particle coupled to an energy storage circuit. When circuit and particle are at the same temperature, the second law forbids harvesting energy from the thermal motion of the Brownian particle, even if the circuit contains a... | 0 |
I am working on this problem. A hexagon is inscribed in a circle. The length of five of its sides is a, while the length of the six side is b. My question is : a. How to find the area of this hexagon? b. how to find the each of the diagonals's length? What I have in mind is that, since only one side is different from a... | 0 |
This question closely ties into a question I had about verbless clauses. However, I am writing a new one at the suggestion of a user. Polarity-sensitive aspectual-related words are those such as 'still' and 'already.' I have established that modifiers like 'obviously,' which I believe to be evaluative in nature, can fu... | 0 |
According to my current understanding of special relativity, photons do not experience the passage of time. It is as though the universe is completely 'paused' for them. I know that objects with mass cannot accelerate to the speed of light. But isn't the whole point of relativity to predict the motion of an object from... | 0 |
I made the claim on a manuscript that all manifolds possess an acceleration field. The referee rejected the idea saying "The nature of this acceleration field has not been seriously discussed and the theory lacks justification in physics". This confused me as I understand that a field, in physics, is a region of space ... | 0 |
I am looking for a word that describes something whose meaning is instantly recognizable, that is so simple as to be offensively lazy, and yet completely apropos. Such a word might describe Kazimir Malevich's painting Black Square: Chef's kiss conveys artfulness and minimalism, but not to the point of laziness or offen... | 0 |
Let's bring a positively charged rod near a conductor. Now since some electrons in outer shells are not strongly bound to atoms,they will get to the side near the rod. But why does it mean that dipole is formed in that conductor? We take the vertical cross sections of the conductor. Now,in each vertical layer,there wil... | 0 |
In basic physics lectures, the teacher or professor in my class never explains the behavior of rotating two or many body particles. In my experience and intuition doing physics, two-particle or many-body systems tend to rotate about their center of mass. For example, the earth-sun rotates around its center of mass, or ... | 0 |
I'm hoping maybe this is the right spot for this question, if not, I would love for someone to suggest a better spot I am attempting to use SOLIDWORKS flow simulation to simulate the airflow through a ram air duct. Think like a venturi tube on an airplane, but the convergent divergent duct is embedded in the structure ... | 0 |
Intuitionistic logic can't prove as many sentences as classical logic, for example: Peirce's Law; Reductio Ad Absurdum; Double Negation Elimination; and Tertium Non Datur, which are all equivalent in classical propositional calculus and they can't be proved in intuitionistic systems. I can prove their equivalences in s... | 0 |
I'm using pandoc in my website to allow my content creators to use Word, which would simplify developmnent immensely. The only issue I have is that Pandoc seems to output very little information about document styling. It's possible for me to manually re-add these with CSS later, but that somewhat defeats the pupose of... | 0 |
When there is wind at a surface, and a rotating cylinder is placed there, mounted in a way that it is free to reorient itself, can it be predicted if the cylinder will align itself in a certain way? Perhaps it is easier to first consider the same scenario but without a surface. So, simply, a rotating cylinder in wind. ... | 0 |
It is very common in physics, when we refer to the most diverse theories, on the most diverse length scales, we also refer to their energy scale. It is through the energy scale that we classify a theory as being classical, quantum, or relativistic, for example. Likewise, on such a scale, we know whether we are dealing ... | 0 |
I was walking by the sidewalk during the night when I noticed a swarm of flies circling a street lamp. It was difficult to see at first, so I tried looking in different angles. The security gate came in by pure chance between me and the streetlight. Now the insects became crystal clear. I tried to capture this in camer... | 0 |
My teacher gave us the assignment to find the moment of inertia of any shape you want. So I decided to find the moment of inertia of our milky way galaxy. I found out that our galaxy is shaped like a warped disk, not a flat. After I found out that, I looked for the equation of the shape and density distribution of the ... | 0 |
I was watching this video on Hall effect, and to demonstrate that it is not electric fields that are bending the electron beam, the presenter puts a metal plate between the magnet and the beam. So, my question is, say there was a charge instead of the magnet. How will the metal plate shield the electric field produced ... | 0 |
Some visuals are so obvious that you would think proofs are not needed. But then trying to proof them rigouresly is a whole other kettle of fish. I was stumped by the following puzzle I made for myself: (really it is no homework question) How do you proof that the axis of an ellipse are perpendicular? Yes you can see i... | 0 |
Good afternoon everyone, I am currently resetting my mac and reinstalling everything in a clean way. I would love to have guidance here if possible. I currently installed TexLive and TextDist but now i am guiding myself with this : https://github.com/James-Yu/LaTeX-Workshop/wiki/Install If anyone could explain to me th... | 0 |
I often have to translate sentences such as: The Department of Environment has offices everywhere in the country, and we would love for you to join us [us as in "the whole department, and not a specific team]. Or: The Police Department is assigning as many resources possible to the case, but we [the Police Department] ... | 0 |
I have a great interest in synthetic geometry since I was in senior high school. Although I have graduated from university I still like them now. When I was in high school, I read many textbooks and exercise books about synthetic geometry of mathematical competition and learned many interesting things like harmonic ran... | 0 |
I have a problem I fail to research properly, so I hope you may at least push me in the right direction (or maybe even provide me an answer right away?). I know how linear regression works, that it attempts to find a linear curve such that the sum of all residual errors to the square of the given data points is minimal... | 0 |
I've read other answers about how vinyl records reproduce sound, but they don't quite address a main thing I'm curious about. Play Middle C on a piano or a Clarinet, its the same note that can be played at the same volume because the main note is the same. You can tell the instruments apart because there is a different... | 0 |
If an isolated conductor has a net zero charge and is not in an external field, would the free charges still move to the surface of the conductor eg. a conducting sphere? Wouldn't this create an electric field inside the conductor pointing radially outwards as there would be positive ions within the conductor and negat... | 0 |
I understand my question sounds stupid but hear me out. I wondered if protons or any charged particle could generate photons and I found this wonderful answer that says yes: Does shaking an atom produce photons? The issue now is that the more I thought about it the more I became confused and here is why. If any shaking... | 0 |
I've gotten some contradictory answers on where the definition of the element within a set comes from. From a quick Google search, I got this strange idea that the definition of the element comes from the definition of a set. I reached this conclusion because some websites state simply that the element is A member of a... | 0 |
Suppose the situation where an object undergoes linear motion at a constant velocity on a frictionless surface. This motion is often introduced as inertial motion, which is the motion described with Newton's first law. On the other hand, suppose the situation where a person applies a force to an object on a surface wit... | 0 |
I have an understanding of electrical circuits, however I am very interested to know more about electromagnetic waves radiation. In particular I want to know how an oscillating voltage causes the electrons move inside a conductive antenna. Voltage is only a difference in electrical potential in our local circuit, it is... | 0 |
This is a discussion I was having with a friend: Its very likely that the temperature of the water you place a tea bag in while change the flavor of the tea (although I don't know why exactly from a physics perspective) But suppose I have water at a certain temperature: If I let the teabag naturally sit and soak in the... | 0 |
I downloaded a latex template for Wiley journal articles, and can open the template file but cannot seem to get Texstudio/Miktex to find the .cls file. The template comes with a latex file which uses the class as an example, and if I open that right in the extracted ZIP folder, all is well; however, if I save-as anywhe... | 0 |
During the last few days I have been interested in the gravitational hierarchy problem and the different explanations for it/solutions to it. Among the most "concrete" (insofar as anything this complex can be concrete) explanations are several realisations of the so-called "brane cosmology". In these, whether they be t... | 0 |
So imagine the classic science experiment where you take an empty aluminium can and a rubber bar that you charge with fur. At first, that can is electrically neutral. Two different cases now that I want to discuss: If I put the can on a desk made out of wood, the can will be attracted by my charged rubber bar due to in... | 0 |
Can we determine the truth value of the statement "if A then B" knowing only that B is definitely false whenever A is true, for example, "If you live in Paris, then you live in London." From what I understand about truth tables, this on the face of it is indetermined because it could be true or false based on whether y... | 0 |
The existing English language term needs to refer to a robot that can navigate environments and it incorporates a human who is present virtually inside the robot from a remote location. The human navigates the robot and communicates with the environment in real-time. The closest example are the so-called telepresence r... | 0 |
In the picture below, mountains farther away blends into the color of sky, this is "atmospheric perspective", caused by atmospheric scattering. This effect is also called "fog". But dark blue appears in the middle of the [green -> light blue] gradient somehow. Why? Is there a physically-based model to explain that? In ... | 0 |
In a room at normal room temperature, certain materials, such as metal, glass, ceramic, or rock, will feel cold to the touch, but others, such as wood or plastic, do not so much. Which physical properties do the former materials have in common that cause them to be cold to the touch but the others lack? The fact that w... | 0 |
As a forward, I'm no a physicist or a student of it. In fact I'm pretty ordinary. So if I mischarecterize some concepts, bear with me. So I was reading up on some of the new technologies and then I had a moment. I am wondering if you could use quantum entanglement to transmit data across a vast distance, theoretically ... | 0 |
My understanding: electrocaloric effect relies on polarized molecules lining up to an external electric field, which lowers the local entropy and thus heat is given off to the surroundings. When the field is removed, the molecular dipoles again arrange randomly, which increases the local entropy, thus heat is taken in ... | 0 |
I'm looking for a word that effectively conveys an attitude showing a preference for having a child related to oneself ... ie, a lineally/genetically-related child. In particular, a word that would fit the following example: Michael had a _____ attitude, he wanted children of his own and / or possibly a noun form: Mich... | 0 |
Scientocracy (to my understanding and as my intended meaning) is government by results, i.e., eschew policy debates to instead argue and then agree on metrics, run an experiment and then transition to whichever solution produces the best outcome as determined by the agreed upon metrics (of course, if cultural, climatic... | 0 |
In the preface to Landau and Lifshitz's Statistical Physics, they comment the following In the discussion of the foundations of classical statistical physics, we consider from the start the statistical distribution for small parts (subsystems) of systems, not for entire closed systems. This is in accordance with the fu... | 0 |
Im not necessarily talking about emf (and also not considering rotation) , but rather the potential difference created due the induced electric field to balance the lorentz force on the electron. For example if the disk is moving toward the right and the magnetic field is into the screen then the lorentz force is actin... | 0 |
As I understand it, the (real) index of refraction is given by the ratio of speed of a monochromatic light wave in vacuo versus speed in medium. When it comes to the question of propagation of a light pulse in a (dispersive) medium I know that I need to calculate the group refractive index to obtain the propagation spe... | 0 |
I've recently watched this video about an electromagnetic ring accelerator. I get how it works: it uses controlled electro-magnetic coils to accelerate metal balls' Passing trough one of the coils has two stages: when the coil passes enters the coil, the coil is powered on, generating an electro-magnetic field, acceler... | 0 |
For example, ZFC and ZF. I have come across the notion of pure and applied mathematics, and how the development of the former can (and is usually intended to) lead to the furtherance of the latter. In this case, how do we know that the axioms we do pure maths with are "sound"? For me, there is no point in doing somethi... | 0 |
In Slavery in Massachusetts, Thoreau writes: But it chanced the other day that I scented a white water-lily, and a season I had waited for had arrived. It is the emblem of purity. It bursts up so pure and fair to the eye, and so sweet to the scent, as if to show us what purity and sweetness reside in, and can be extrac... | 0 |
Shouldn't acoustic oscillations created by primordial matter anisotropies create multiple peaks and troughs when those oscillations are frozen by decoupling ? It's not unthinkable to imagine that the exact calculations of the expected amplitudes of each will lead to a result where the first peak is much more significan... | 0 |
A current-carrying loop of wire is placed in a uniform external magnetic field as shown. If the current in the wire is traveling counterclockwise in the picture, what do you predict the loop will do when released? The answer provided for this question: From the RHR for loops, place the heel of the right hand in the pla... | 0 |
If I take a pair of classical particles with some energy interacting via Lennard-Jones potential, then the motion of the two particles will be in such a way that the distance oscillates around the equilibrium point (if the energy is not too high compared to barrier depth). If I consider a large number of Lennard Jones ... | 0 |
The situation: I'm trying to generate my resume with Latex, and get a pdf with all the text - no problems here. When I copy all of this text into a plain .txt file though, the formatting transforms all whitespaces (newlines etc.) into a single space, it seems. For example, lists are not vertically placed anymore, but p... | 0 |
I'm working on performing a linear stability analysis on a system with fluid undergoing applied vibrations. Now, usually these systems are analyzed with no fluid velocity. Under these conditions, it can be shown that the system reduces to the form of a Mathieu equation (or a modified Mathieu equation in the case of vis... | 0 |
All explanations of jet propulsion that I've seen are formulated as "due to conservation of momentum, air with momentum coming out of one end means the rocket must gain momentum in the opposing direction". However it can't be the case that particles simply exiting some area with a momentum means all of a sudden somethi... | 0 |
I was trying to find some references for modelling the equations of motion of a simple dynamical system (say a pendulum on a moving mass) when I realized that the very vast majority of the material you find online or even in textbooks suffer from the following problems: Reference frame poorly defined, wildly assigned o... | 0 |
While reading the Wikipedia article on infinite sets I found the following quote: A set is infinite if and only if for every natural number, the set has a subset whose cardinality is that natural number. If the axiom of choice holds, then a set is infinite if and only if it includes a countable infinite subset. This ra... | 0 |
Let's say the origin is an equilibrium position for a particle. If we have a case such that a slight displacement of the particle in x direction makes it return to the mean position (stable equilibrium) and a slight displacement of the particle in y/z directions makes it go further away from the mean position (unstable... | 0 |
My understanding from popular science articles is that the boundary is a field theory that has no gravity and has one less spatial dimension than the bulk. However, I am not sure I understood this picture correctly. I just read a recent article at quanta magazine that states: "A solar system in the central anti-de Sitt... | 0 |
I am trying to understand Turing's halting problem proof by applying the same paradox to a similar problem where, instead of determining if a given code will halt, you instead determine if it will return True or False (assuming it will always return eventually). Obviously such a machine can exist, as it is simply a sta... | 0 |
According to this and this answer, and as far as I understand these answers, dark matter halos cannot collapse to a black hole because, due to uncoupling from the EM field, they are unable to radiate their kinetic energy, and hence, getting closer to some gravitational center point also means that they get faster and s... | 0 |
I am working in an algorithm to order a bed of close-packed spheres. In the case where I have got four spheres, I understand that the fifth sphere position and radius is determined by the positions and radii of the four other spheres. It seems that there would be different solutions: one that produces a sphere that is ... | 0 |
From what I understand, each particle has an energy called kinetic energy. When we consider a system of particles, in addition to their individual kinetic energy, there is an energy associated with the systems which depends on their relative configuration which we call the potential energy. Mathematically a system of p... | 0 |
Can we answer the question: "What are all the types?" i.e. can we recursively generate all the types in a given type theory according to a certain set of rules? Pardon for asking such a weird question. Question/personal background: I'm leaving this question intentionally vague with regards to what I mean by "type theor... | 0 |
Let's say you're looking at your keyboard on your phone.. let's take the letter g. Light from g is going in every direction.. we know this because we can see g from all angles above the phone. So light from g is also hitting your eye where you would see all the other keys,screen and background objects however we don't ... | 0 |
In the same vein/spirit as the UIPAC books for standardising systematic names and formulae of chemicals, the SI units for units of physical measurements, or the INN for generic drug names, have there been efforts to write every statement in mathematics (eg. axiom, postulate, result, theorem) in a standardised language?... | 0 |
In google translate, the word "bizarre" means "very strange or unusual, especially so as to cause interest or amusement.". But I believe that this description is more suited for "eccentric". For example, the character of Jack Sparrow from Pirates of the Caribbean is eccentric. On the other hand, AI chat GPT says that "... | 0 |
Almost every text on Category theory uses categories such as Ab, Grp, and so on as examples to work with but can category theoretic methods actually help us understand the structures better? In particular, does Category Theory aid us in proving some significant abstract algebraic results that are otherwise tedious to p... | 0 |
I find it amusing why the infimum norm or supremum norm defined on function spaces work actually? It's difficult for me to reach to an intuition where I would see the infimum or supremum as a natural way to represent distance between two functions. Is there any intuition which can motivate the norms defined on function... | 0 |
Im working on a nonlinear control based on Lyapunov theory and its working really well. I am able to implement it on a dynamical model of the system in simulink. However I think it has a really big limitation and that is: I cant guarantee that the real system will have the exact parameters that I am modelling. I want t... | 0 |
Often metaphors are likenesses where there's a direct connection. For example on the news somebody describes a crash/ earthquake/ explosion as It was like a bomb going off. What about where the two things are not similar. Her painted toe-nails were an explosion of colour. (Exploding feet anyone!) This poem Cherry Ripe ... | 0 |
I am using TeXstudio with LaTex on Windows I also know about Git. In fact, I use Git to collaborate on RStudio but on TeXstudio I cannot. While typing on TeXstudio on my own without collaboration, I had my first problem saving different versions of .txt files on the same project, which sometimes confuses me. When I was... | 0 |
Goldblatt gives a brief overview of adjunctions in his "Topoi", and one of the exercises asks to characterise the partial arrow classifier in terms of some universal arrow. Well, I gave it some thought, and I'm not even sure where to go from there. The main problem I have is that in the "there exists" part I have only ... | 0 |
In statistical thermodynamics we can prove that the evolution of a system minimises some potential with units of energy (e.g. energy). This can be done purely statistically, by using the first two laws of thermodynamics, and showing that the state where the appropriate potential is minimised is the most likely one. The... | 0 |
I am at a loss to understand the justification behind the following statement being false and would appreciate someone explaining what this particular argument is saying: The set of all finite subsets of a countably infinite set is uncountable. Answer: False. Any countable set has a bijection with the naturals, and one... | 0 |
In common parlance, we say "s/he pretends s/he doesn't understand", for people who ignore the context of the conversation and require hyper-specific definitions to keep the conversation going. (hyper-simplified) example of the above, in the form of a dialogue: Q: Hey, how's your day? A: In what sense? Q: Uh, let's say ... | 0 |
Based on the double slit experiment we know that in the case of a single particle system the wave function or state vector of position is in a superposition of possibilities before measurement. But does this rule apply in the case of the vacuum state? Is it in a superposition of (non degenerate energy) possibilities be... | 0 |
I have the following books about QFT: Peskin-Schroeder Lancaster-Blundell Iliopoulos-Tomaras I would like to know if there is a QFT that is as concise as Dirac's book about general Relativity. What I found useful about Dirac's book was that it developed most mathematical machinery "from scratch" with very little commen... | 0 |
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