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Questions that ask about some aspect of physics research or study which doesn't involve the actual physics. In general, soft questions can be answered without using physical reasoning.

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0answers
43 views

Can you get into a top grad school coming from UT Knox? [on hold]

long story short, I was a goofball in high school and graduated with a 3.0 or so. I had no idea what physics even was. I did not discover physics until my last year in undergrad; I majored in ...
0
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0answers
10 views

Bibliography on the application of Cubic surfaces in Physics

First of all, sorry if this question doesn't belong here (and sorry for my poor English). I am majoring in Mathematics this year and I am working in a final project about Cubic Surfaces on the ...
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0answers
44 views

Physics without forces? [on hold]

I am thinking of an approach to physics in which physics is built without a concept of force, that is, an approach that explains motion inside a framework of physics in such a way that it is done ...
0
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0answers
42 views

In which field of physics is there greater use of abstract algebra? [closed]

I followed two courses of abstract algebra (group theory, ring theory and a little bit of lie algebra) as optional courses at the university, for the faculty of physics. I have to face the third year ...
5
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0answers
49 views

Why is equipartition law called a theorem too, in some books? [closed]

In some books, the equipartition law is called a theorem. But a law is an observation, and cannot be proved. On the other hand, a theorem is something established using earlier assertions. So what ...
0
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1answer
66 views

Checking long algebraic manipulations [closed]

I have to do a lot of long calculations lately. Most often signs go missing or I miss some constants or forget some terms altoghether. Is there some good strategy to prevent that? I tried repeating ...
0
votes
1answer
40 views

Knots in the Ether [closed]

Knots are 3 dimensional curves, which means that each component is just a finite number of stacked vibrations, and a knot is a collection of vibrations. I also heard there was an old theory that ...
1
vote
1answer
36 views

A question about temperature in the concept of a macroscopic statistical-mechanical system

I recently have come across a question while working on Statistical Mechanics. The question itself was quite straight forward (no this is not a "do my homework" question in case you were wondering) ...
2
votes
1answer
56 views

How do you build intuition in things that you don't have access to? [closed]

I'm learning physics from Halliday Resnik Krane (I'm in high school senior year but my school has neither good lab or teacher). Currently I'm learning about electromagnetism (from volume 2). When I ...
2
votes
1answer
39 views

What and why is quantum information?

Can someone explain to a muggle like me what is "Quantum Information" concretely? I'm asking this because I don't get it why the Hawking radiation "destroying information" is so controversial. Quoting ...
0
votes
1answer
51 views

How would a layer of hot air affect the normal frequencies in a pipe?

Imagine that you have a pipe of length $L$ with one open end and one closed end. If the sound speed inside the pipe is $v_s$, then the fundamental frequency is: $$f_1=\frac{v_s}{4L}$$ and the ...
3
votes
1answer
95 views

Why is it easier to float when the body is relaxed?

Anyone who swims or learns how to swim must have experienced this simple observation. When the muscles in our bodies are relaxed, we tend to float; whereas stiffness/tensed body tend to drown. So ...
1
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0answers
25 views

Commonly used notation for functionals [closed]

I'm studying Halmos' Finite-Dimensional Vector Spaces as a precursor to functional analysis. If $V$ is a vector space and $V^*$ its dual, and if $x \in V$ and $y \in V^*$, the notation of the bilinear ...
0
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1answer
57 views

How did you learn and get interested in physics? [closed]

I have lost interest in physics after being stuck in a hard problem. I asked a question here recently and a person responded with "You shouldn't be learning physics to solve textbook problems". So ...
0
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0answers
30 views

Thermal radiation in hyperbolic space

First, I am not a physicist so my question may be poorly formulated. Say if I wanted to study heat diffusion in hyperbolic space the way to do this would likely be to study random walks in the ...
0
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0answers
64 views

Entropy of Information as a law of Nature

If we assume that the information of any system has the tendency to spread, then can we build meaningful physics out of that assumption? A system has a set of physical properties and every property ...
-1
votes
1answer
85 views

Are physics advancements pure mathematical realizations? [closed]

Hello Physics Stack Exchange! I'm from Mathematics Stack Exchange and recently watched a TedTalk on the fabric of nature being mathematics itself. The more I pondered this, I wondered about the ...
0
votes
1answer
47 views

Semantic distinction between “Partition Function” and “Generating Functional” in QFT?

I am just now learning about these, and I have seen them defined as follows: The generating functional for a set of fields $\phi_i$ is defined by: $$Z[J_i]=\int\mathcal{D}\phi_i e^{i(S[\phi_i]+\int ...
1
vote
3answers
79 views

True from false

Today, I was reading an article about the new info regarding the 9th plannet in the system .I tried to understand more,hence I researched the net and I got into Youtube videos and pages written about ...
6
votes
1answer
295 views

Is there a word for a surface that DOES have friction? [closed]

When talking about models in physics, I want a way to differentiate between surfaces that have negligible and considerable friction. We have "frictionless" for surfaces where friction is negligible, ...
0
votes
2answers
121 views

Why in physics does one ask increasingly fundamental questions of matter? [closed]

Many physicists seek to understand grand theories of everything by reduction to smaller components or building blocks. Those trained, but maybe are not practicing talk about the importance of "first ...
0
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0answers
28 views

What should I have an understanding of before diving into R. Shankar's Quantum Mechanics? [duplicate]

I have recently started reading Quantum Mechanics from R. Shankar's book and I find the math introduced so far(first twenty to thirty pages) in the first chapter to be very engaging; the book makes me ...
1
vote
0answers
36 views

Have there been any patented physical models or computational algorithms? [closed]

There was a recent question (linked below) on the Law SE about the potential to patent algorithms. It appears there is a lot of gray area in the subject. Of course natural laws cannot be subject to ...
0
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0answers
46 views

Teaching myself physics [duplicate]

I am a Mathematics 1st year student in UK. I have modules such as analysis, abstract algebra, linear algebra, and differential equations. I want to learn more about physics, in particular theoretical ...
1
vote
1answer
41 views

What additional things should I do to understand language of science [duplicate]

I am about to complete my High school. Typically, I study text books of science but it takes a lot of time to understand the concept resulting less time to do questions and due to which I get low ...
2
votes
2answers
67 views

Can you send information with gravity?

Admittedly, I dont know a whole lot about the gravitational wave discovery, but could it theoretically be used to send information ridiculous distances? The G-waves could carry data in a similar ...
1
vote
2answers
66 views

Formal Term for an invariant constant to all observers

I was thinking of the speed of light and realized I don't know how to quickly name the concept of "physical quantity that is measured to be the same in all reference frames". Are there examples of ...
2
votes
1answer
63 views

What is the scope of the term 'orbits'?

Warning - this is a very soft question. I was wondering what the precise meaning of the word orbit is? Wikipedia refers to it only in the sense of gravitational forces, in which case mathematically ...
1
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0answers
29 views

accelerating a macroscopic object to relativistic speed

Is there science and technology available today that would, in principle, allow accelerating a macroscopic object to relativistic speeds?
0
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0answers
12 views

Which photometric quantities do humans perceive, and how are these registered?

I saw in this brief video that there are five central quantities in photometry: intensity $I$ ($\dim I = \sf J$) flux $\Phi = \int I \, d\Omega$ ($\dim\Phi = \sf J$) illuminance $E = \partial\Phi/\...
1
vote
1answer
127 views

What color are elementary particles?

I was visualizing particle interactions one night and I realized I didn't know what color the particles actually are. I did a little research, but the search results were dominated by the color charge ...
0
votes
1answer
58 views

Pseudopotential in VASP

I am a beginner in learning VASP (Vienna Ab-initio Simulation Package) and quite interested in the PAW (projector augmented wave) method implemented in VASP. As far as I knew, PAW is an all-electron ...
1
vote
1answer
37 views

Several thought experiments on the difference between direct and indirect measurements

I have read several books regarding basic concepts in physics but I'm still puzzled by own lack of knowledge. I shall not give definitions, because I presume we are all familiar with them. I do not ...
0
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1answer
36 views

PDE and Analysis Reference Request From Small College Grad [duplicate]

I am in my final semester graduating from a liberal arts college (physics/math major) and intend to study high-energy theory in graduate school. Coming from a smaller college I have not had the ...
0
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0answers
19 views

What are some good books to study General Relativity? [duplicate]

I am still in high school so I only have that much base in mathematics. I do know the whole theory of Special Relativity and some basics of quantum mechanics. If you don’t think I will be able to ...
0
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0answers
35 views

What are some good reference books for “Spacetime And Geometry” by S. Carroll? [duplicate]

I’m in high school and I have bought “Spacetime and Geometry” by S.Carroll for studying General Relativity in an introductory manner. I understand what he is explaining but I cannot follow the math ...
0
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3answers
146 views

What is a suitable book to learn general relativity for high school students? [duplicate]

I know all of special relativity but I also know it is not enough to study GR. The mathematics is very complex. I have “Spacetime and Geometry” by S. Caroll. He has described it GR well enough but I ...
0
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1answer
38 views

What is the verb for what iron does to a magnetic field? [closed]

Iron, or other materials, can be used as the core of an electromagnet, to get a stronger field. What verb describes what the iron does? I'm tempted to say that it conducts the field, but I know that'...
0
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0answers
56 views

Terminology regarding the units [duplicate]

Is "m⁄s²" called a unit (singular)? Or should it be called "units" because it is composed of basic units? Would you say that "m" and "s²" are components of this unit? Theses components being ...
3
votes
2answers
77 views

Human body as a measuring instrument

One can easily find descriptions of human eyes and ears used for measuring phenomenons. Finding what resolution do eyes have or what frequencies can human hear is no trouble. It is also seen in scales ...
0
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1answer
37 views

Attributing direction as well as metrical structure to space - What did Einstein mean?

In notes from a lecture on The Concept of Space delivered by Einstein - 6 June, 1930 - it was reported: … he himself had faith that the idea of attributing direction as well as metrical structure ...
5
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0answers
114 views

Does physics education research support the idea that answer keys are bad?

This is a physics education research (PER) question. Interpreted properly, it is NOT an opinion-based question! I am a physics grad student and several of my professors have stated that they are ...
2
votes
1answer
108 views

What are the advantages to the path integral formulation of non-relativistic quantum mechanics?

When I first learned quantum mechanics almost everything was in terms of wave functions or matrix mechanics, not path integrals. Not having learned much about path integrals besides some brief reading ...
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1answer
226 views

What I should do in order to be theoretical physicist? [duplicate]

I was very well fascinated by the mysteries of light and Albert Einstein's general theory of relativity and special theory of relativity, and I would like to know more about it .So I have decided to ...
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votes
1answer
92 views

Difference between a law and a theory [duplicate]

What is the difference between a law and a theory? Some seem to think that a law is a single relationship or a single equation, while a theory is an explanatory framework in which these laws come ...
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votes
2answers
89 views

What exactly contradicts the usage of electric generators as perpetuum mobile?

A friend has been talking to me about using various electric generators in order to create a perpetuum mobile that can be used for various especially in cars. Of course I instantly said that it doesn'...
-1
votes
1answer
76 views

Physics for understanding Chemistry [duplicate]

I am a highschooler who eventually wants to deeply understand the properties of elements and compounds etc. I have been dabbling in some Chemistry books lately but I find them a bit superficial, and ...
5
votes
0answers
140 views

Are there any open problems in mathematics whose resolutions would have important physical implications?

Are there any open problems in pure mathematics whose resolutions would resolve a well-formulated open physics question, whose solution could (at least in principle) explain an experimentally ...
34
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4answers
7k views

What was the 'quantum mechanics' before quantum mechanics?

Quantum mechanics is near-universally considered one of the most difficult concepts to grasp, but what were the persistently unintuitive, conceptually challenging fields physicists had to grasp before ...
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2answers
113 views

How did Isaac Newton derive the laws of gravity?

I would like to know how do people come to derive physical laws out of experiments alone, for example how did Newton came up with the laws of gravity? Did he just set those as axioms or did he ...