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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0
votes
1answer
28 views

Is beauty a valid guide for doing research in theoretical physics? [on hold]

It would appear that the goal of theoretical physics ought to be finding a truthful accurate description of reality. However, many theoretical physicists — especially string theorists — ...
3
votes
1answer
78 views

“And God said…and there was light.” What does these equations mean? [duplicate]

Today while I was on the Internet I came across an interesting picture, that caught my eye. It's : I don't have to explain why this picture seems interesting to someone who knows the meaning and ...
0
votes
0answers
56 views

Is gravity really well described? [on hold]

From what I know, gravity is a natural phenomenon by which all physical bodies attract each other. I'm wondering, however, about the nature of the gravity theory. As established in the definition, ...
0
votes
1answer
56 views

Maths behind gravity assist

What kind of maths is behind gravity assists and in general the theory of orbits, and how deep does it go? I am just wondering if I know enough prerequisites!
3
votes
2answers
357 views

How much of theoretical physics research involves contemplation and reflection? [on hold]

Something I do when I'm learning physics is to contemplate and put into perspective the stuff that I've learned. I often find that I stumble upon deeper or more subtle questions and issues when I do ...
-3
votes
0answers
37 views

Physicist look-alikes [on hold]

I think that the young Pauli looks nearly identical to Jimmy Fallon: Pauli: http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Pauli.jpg/250px-Pauli.jpg Fallon: ...
0
votes
0answers
32 views

Spivak's Physics for Mathematicians [on hold]

I would like to ask for some details on Spivak's Physics for Mathematicians (Mechanics): is this textbook suitable for a first exposure to physics for a math undergraduate? what knowledge is assumed ...
1
vote
0answers
85 views

What is the difference between a philosopher of science and a theoretical physicist? [on hold]

What is the characteristic objective difference in objectively observable attitudes and research styles between a philosopher of physics and a theoretical physicist? Was Ernst Mach more of a ...
0
votes
0answers
21 views

Application of Boltzmann's Box [on hold]

Does our universe work like the Boltzmann's Box? If not, does it have any application in the real world?
13
votes
6answers
4k views

Difference between theoretical physics and mathematical physics?

I'm a huge fan of mathematical physics and I know what the formal definitions of those two areas are, I've seen them. But I still get completely baffled when someone asks me to explain it simply. The ...
7
votes
3answers
680 views

Current scope of Chaos theory and non-linear dynamics? [on hold]

I am a physics undergrad interested in stuff like dynamical systems, chaos theory etc. Is there ongoing research in these fields? I am talking about pure research and not applications to things like ...
3
votes
1answer
54 views

What topics do I need to study electromagnetism on the quantum scale? [on hold]

What topics do I need to study (in order) so that I can study electromagnetics on the quantum scale? What is the name of the discipline studying electromagnetism on the quantum scale? Do I need to ...
0
votes
0answers
40 views

Specialization in studying theoretical physics (edited) [closed]

As a young student very interested in physics, it is my goal in life to learn more about the world through the pursuit of theoretical physics, and to make a contribution to the field. Of course, one ...
2
votes
0answers
33 views

What are some good physics websites for learning in general? [duplicate]

As a 17-year-old who is interested in physics and especially in the laws of the universe, what are some good websites that are clear explanations and straight to the point?
2
votes
1answer
62 views

Electron/positron annihilation lines in astrophysics

I have a reasonable understanding of electron/positron annihilation, in that it is a collision between a pair of particles, one matter and one antimatter, that generally produces gamma radiation. ...
-1
votes
3answers
75 views

Is it acceptable to base a physical theory on a philosophical idea?

Are theories that are based on the philosophy acceptable in Physics? If the theory is based on the philosophy that obtained from laboratory experiments, can it be accepted?
-4
votes
1answer
115 views

How to get funding for research on something that can revolutionize the quantum world! [closed]

I think this can revolutionize the quantum world! Any ideas on how to impress physicists to get a full fledged funding for research?
1
vote
2answers
52 views

Do unmeasured particles function the same as when measured?

If there are particles that we are uncertain of are in a state of superposition, do they still function as they would when they are measured? For instance say there is a mechanical clock, and the ...
4
votes
0answers
80 views

Can a discoverer give the name he wants to his finding? [migrated]

Let's assume that some scientist discovers a phenomenon that has never been noticed before. He wants to write a paper about it but he doesn't want to constantly write "effect of change of some ...
0
votes
0answers
15 views

Relativistic non-linear Walecka model

What is meant by a relativistic non-linear Walecka model? What are some various sources to study it? [And why cannot Google show a satisfactory result to such a simple question?]
3
votes
3answers
355 views

What's the difference between “numerical methods” & “mathematical analysis” as said by Feynman in his lectures?

While reading his lectures, I came to these lines: On the basis of Newton's second law of motion,which gives the relation between the acceleration of any body & the force acting on it,any ...
1
vote
1answer
43 views

Practical Book on Hamiltonian and Lagrangians? [duplicate]

Are there any terse, accessible books that are geared specifically at learning these two formalisms and how to effectively use them? So far I've only see either topic introduced as a part of another ...
0
votes
0answers
40 views

Experimental physics book suited for a math student [closed]

I am currently a Master's student in Mathematics who is very much interested to learn advanced physics (QFT, Particle Physics, GR,Cosmology). The main focus of my undergraduate programme was on ...
1
vote
2answers
75 views

How “fundamental” is quantum information/computation?

I am wondering how fundamental the study of quantum information theory and computation is, in the sense of contributing to our understanding of the basic laws of nature. Will quantum information ...
1
vote
1answer
69 views

Where did the Word 'Physics' Come From? [closed]

As the title suggests, where did the name for the discipline 'Physics' come from? - does it mean something in Greek?
1
vote
0answers
34 views

Why Penrose's conjecture that consciousness is affected by quantum phenomenon too much of a stretch for Hawking [closed]

Why did Stephen Hawking feels that Penrose's statement on quantum consciousness is too much of a stretch? This is a classical reductionist argument. Humans are made by atoms, atoms are made by ...
1
vote
1answer
62 views

Research papers readable by first years? [closed]

This coming Spring I'll be running a Mechanics I lab for freshman (as a teaching assistant) and I'll have some say as to the way I do it. So I was thinking it would be nice if I could find some ...
1
vote
0answers
75 views

Is multiverse generally accepted among cosmologists? [closed]

Is it consensus among cosmologist that there is probably at least one type of multiverse? Is there any renowned physicist who rejects the idea of multiverse? I'm not talking about those who claim it's ...
1
vote
1answer
128 views

Correct terminology for combined kinematic and dynamic state

The kinematic state is defined as the position and orientation in space. The dynamic state is defined as the associated velocities. What is the correct terminology for the combined kinematic and ...
-8
votes
2answers
631 views

The end of theoretical physics? [closed]

About the meta questions 1193 and 2609, I've heard parallelly, that the complete branch theoretical physics is already done and that there isn't any thing else to do in this field, how true is it?.
3
votes
1answer
61 views

Greiner or Landau for Math major student? [closed]

For textbook series by Greiner or Landau, is it recommended to start reading for math major students, who have no serious physics background, but comfortable with maths ? It seems that both Greiner ...
1
vote
0answers
42 views

US versus International physics GRE Scores [migrated]

Browsing various phd admissions programs, I consistently find that there is a higher expectation of international students on the physics gre for admission. For example, at UT Austin, the average ...
0
votes
0answers
3 views

Of which thing in physics is the logo (graph) of physics.stacexchange.com [migrated]

Since I visited physics.stackexchange, I am really curious what function has such a graph or is it just random. I am referring to the graph logo of this stackexchange community
1
vote
1answer
69 views

Eddington-Weinberg relation

The numerical coincidence that triggered Dirac to postulate his Large Number Hypothesis can be summarized by expressing the proton-electron gravitational angular momentum in units $\hbar c$: ...
7
votes
1answer
293 views

Reference Request: Classical Mechanics with Symplectic Reduction

I am trying to find a supplement to appendix of Cushman & Bates' book on Global aspects of Classical Integrable Systems, that is less terse and explains mechanics with Lie groups (with dual of Lie ...
0
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0answers
25 views

Confusion about the use of the term “Phase Space” in Strogatz text

I've just started learning about Hamiltonian mechanics, and from the definition given in Taylor's classical mechanics, phase space must always have an even dimension. However, I recall from reading ...
26
votes
14answers
6k views

Comprehensive book on group theory for physicists?

I am looking for a good source on group theory aimed at physicists. I'd prefer one with a good general introduction to group theory, not just focusing on Lie groups or crystal groups but one that ...
0
votes
3answers
121 views

Proof in physics

Is 100% proof of a theory possible in physics, or all we can do is to see how well it stacks up against observations and then decide if we accept it or not? If so, isn't there a danger ,however ...
0
votes
3answers
48 views

Image angle illusion [closed]

I am not sure whether this question on-topic here. (please suggest to migrate if this is off-topic) What is the phenomenon/illusion (or something else?) known as where in a photo of a person, the ...
0
votes
1answer
111 views

What is this simple mechanism called? [closed]

I often build with Lego and use this mechanism: It converts the rotational movement to linear by making the stick between the two blocks go back and forth. What is this mechanism called?
0
votes
2answers
83 views

Why is a thought experiment a valid way to prove anything?

Isn't a thought experiment as subjective as you could make science be? Is it that since it is impossible with our current methods, we are simply skipping too many hurdles that would have to first be ...
2
votes
1answer
158 views

Why does the BB84 paper “Quantum cryptography: Public key distribution and coin tossing” have a 'withdrawn' status?

The original paper proposing quantum key distribution protocol (now known as BB84): Charles H. Bennett, Gilles Brassard, Quantum cryptography: Public key distribution and coin tossing seems to ...
1
vote
2answers
47 views

What really is “inertial force”?

In Fluid Mechanics we often see the term inertial force when discussing Reynolds number. The problem is, I didn't really get what's this inertial force. Basically, the notion of inertia I have is that ...
1
vote
1answer
30 views

Specific scenario involving rotation and inertial frames of reference?

We recently went over some rotational motion in my freshman physics class, I had a question for the professor on your frame of reference, and how that would effect the rotation of the object. Say you ...
1
vote
1answer
31 views

The spin and weight of a primary field in CFT

A primary field in Conformal Field Theory transforms as $$\phi (z,\bar{z}) =\left(\frac{dz}{dz'} \right)^h \left(\frac{d\bar{z}}{d\bar{z}'} \right)^\bar{h}\phi (z',\bar{z}') $$ under a conformal ...
2
votes
0answers
72 views

Which field of theoretical physics is most promising? [closed]

I'm about to choose university and I really love physics, but I don't know about use of it. What field is most promising to study? Where could I work with subatomic particles PhD? Or maybe nuclear ...
1
vote
0answers
32 views

Will the usage of Exo-Skeleton Gear actually weaken the human body over time? [closed]

As we all know, Exo Skeletons as they exist now are just a series of Force multiplying apparatuses working together, also the human body changes to accommodate environment specific factors in order to ...
0
votes
1answer
49 views

Conversion of energy to matter or antimatter?

We all know that matter converts into energy, but will energy convert into matter? Does it form antimatter by converting? Illustrate me with example.
3
votes
2answers
111 views

Are Mathematics the language of the universe? [closed]

I am a high school student and next year i am going to be a physics major, so this year i put all my effort on physics and mathematics, since it a great tool for physicists. But now i wonder, in ...
0
votes
0answers
46 views

Good introduction to classical mechanics with math [duplicate]

Right now, I'm reading "Classical Mechanics" by Kibble and Berkshire. Already in chapter 2, I have found a concept being discussed that assumes you have prior knowledge. Specifically, it describes the ...