I just realised that the questions on the site are too mixed up together. On the main page, a question about Newtonian Mechanics is often side-by-side with a question on the standard model/general relativity/string theory etc. I think this is quite messy so a classification would be quite good. Not by tags, but by categories. According to me, the following would be a good classification (but by no means am I suggesting to be final):

  • Non-Relativistic Classical Mechanics
    • Newtonian Mechanics
    • Thermodynamics
    • Maybe statistical mechanics?
    • Optics
    • Wave mechanics and oscillators
    • Hamiltonian Mechanics
    • Lagrangian Mechanics
    • Newtonian Gravitation
    • Maxwellian Electromagnetism
  • Relativity
    • Special Relativity
    • General Relativity
    • Alternatives to General Relativity (Einstein-Cartan theory, etc.)
  • Quantum Mechanics
    • Old Quantum Theory
    • Heisenberg Matrix mechanics
    • Schrodinger Wave mechanics
    • Feynman Path Integral mechanics
    • Scattering
  • Quantum Field Theory

    • Relativistic Quantum Mechanics (Klein-Gordon Equation, Weyl Equation, Dirac Equation, etc.)
    • Quantum Chromodynamics
    • Electroweak theory
    • Quantum Electrodynamics
    • Higgs theory
    • Standard model
  • Quantum Gravity and Unification theories

    • String theory
    • Loop Quantum Gravity
    • Maybe Kaluza-Klein?
    • etc. (GUTs, preon models, and other attempts to Quantum Gravity)
  • 1
    $\begingroup$ This is similar. I don't really like this request -- separating stuff on the main page may not give a good overview of the site. $\endgroup$ Jun 7, 2013 at 5:27
  • $\begingroup$ That will create something like Yahoo answers . Different categories can be seen by users........ But some categories will be seriously ignored. $\endgroup$
    – ABC
    Jun 7, 2013 at 7:28
  • $\begingroup$ It's neither interesting nor clever. This website is not a library, so it doesn't need a Dewey classification. The search engine is good enough to know if a similar question than yours already exists. Tags can be added, too, such that the tagging is sufficiently precise I believe. I voted down. Thanks for having spend time explaining your idea. $\endgroup$
    – FraSchelle
    Jun 7, 2013 at 18:02

1 Answer 1


Not gonna happen.

The site is built to use tags for categorization rather than a hierarchy, and this is a good thing because tagging is more flexible than hierarchies which always suffer from problems relating to

  • difficult to categorize questions
  • questions that span disciplines

There are several things that you can do to control the presentation.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .