What is Classical: Definition and 1000 Discussions

Classical music is art music produced or rooted in the traditions of Western culture, generally considered to have begun in Europe after the fall of the Western Roman Empire in the late 5th century CE and continuing to present day. Classical music refers to Western musical traditions considered to be apart from or a refinement of Western folk music or popular music traditions. The major periods are the medieval (500–1400), Renaissance (1400–1600), Baroque (1600–1750), Classical (1750–1820), Romantic (1800–1910), Modernist (1890–1975) and Postmodern era/Contemporary (1950–present) eras. These periods and their dates are all approximate generalizations and represent gradual stylistic shifts that varied in intensity and prominence throughout the Western world.
The term "classical music" did not appear until the early 19th century, in an attempt to distinctly canonize the period from Johann Sebastian Bach to Ludwig van Beethoven as a golden age. The earliest reference to "classical music" recorded by the Oxford English Dictionary is from about 1829.European art music is largely distinguished from many other non-European classical and some popular musical forms by its system of staff notation, in use since about the 11th century. Catholic monks developed the first forms of modern European musical notation in order to standardize liturgy throughout the worldwide Church. Western staff notation is used by composers to indicate to the performer the pitches and durations for a piece of music. It includes both sacred (religious) and secular music. In contrast to most popular styles that adopted the song (strophic) form or a derivation of this form, classical music has been noted for its development of highly sophisticated forms of instrumental music such as the symphony, concerto, fugue, sonata, and mixed vocal and instrumental styles such as opera, cantata, and mass.

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  1. P

    Momentum vs Kinetic Energy in classical physics

    I've added 'in classical physics' in the thread title because all the differences between them that I found on the internet involved relativistic physics. It was something like both momentum and kinetic energy being components of a four-momentum or something like that. But I cannot understand...
  2. Arij

    How Does Frequency Depend on Gravity in Classical Mechanics?

    Homework Statement how from this question using Energy principles I can find how frequency depends on g? Homework EquationsThe Attempt at a Solution I know that frequency is sqrt(k/m) this is a formula you use in introductory physics. but I am lost on how to do it from energy route or...
  3. S

    I Why Is the Limit ##\hbar \rightarrow 0## Called the Semiclassical Limit?

    A system can only be called semiclassical if there are parts of the system that are described classically and parts decsribed quantum-mechanically. In this paradigm, physical quantites are described in a power series of ##\hbar##, with the zero order corresponding to classical physics and higher...
  4. Faisal Moshiur

    Classical Mechanics Book Recommendation

    How can I start Classical Mechanics, I mean by the help of which book...
  5. D

    I Found a Planck value that relates to classical gravity

    Hello, I was researching the Planck Constant values and decided to build a math software to scan for potential values that relate to permittivity of free space and permeability of free space and found one of the 2010 CODATA values (specifically the Magnetic Resonance Imaging value). Can I get...
  6. INAM KHAN

    I Classical Mechanics v Quantum Mechanics

    I was thinking that what is solid reason behind the failure of Classical Mechanics in Black body radiation? Why classical mechanics not explain the curve at lower or higher range of frequncies.
  7. K

    I About classical and quantum-mechanical statistics

    Hi all, I am reading an introduction on classical and quantum-mechanical statistics. The material considers a 4-particle system with discrete energy level 0E, 1E, 2E, 3E, 4E, 5E and 6E. It is said that the classical particle is indistinguishable but you can identify the different particle by...
  8. certainice

    Energy principle example problem in classical mechanics book

    Homework Statement A man of mass 100 kg can pull on a rope with a maximum force equal to two fifths of his own weight. [Take g = 10 ms^2] In a competition, he must pull a block of mass 1600 kg across a smooth horizontal floor, the block being initially at rest. He is able to apply his maximum...
  9. C

    B Classical EM Wave: Can Model be Proved Wrong?

    There is also a classical model of a photon available, which to me explains a particular behavior of it. Can this model be proved to wrong ?
  10. F

    A good bachelor project problem in classical field theory

    Hey, I am about to do my bachelor project in physics and I really want to dive into the classical theory of fields, this could be General Relativity (GR) and/or Electrodynamics (ED). I have some books on the subject: Barut, ED and classical theory of fields and particles, and Landau&Lifshitz...
  11. Tish62

    A What happens to the red dwarf during a classical nova?

    As a red dwarf star is donating material to a white dwarf until there is a nova. What happens to the red dwarf during the nova? Is there an increase in nucleosynthesis within the red dwarf due to its close proximity? If so, how would that change the periodicity and type of later novas? If you...
  12. F

    Classical Need a Classical Mechanics book that covers these topics

    I'm a freshman in Computer Engineering at a university. I have a Classical Mechanics course that will cover these topics: Newton's law of motion Vector Algebra Equilibrium of bodies Plane Trusses First moment of area, centroid, etc. Calculation of virtual displacement and virtual work...
  13. smodak

    Classical Found a cool free book on Classical Physics

    APPLICATIONS OF CLASSICAL PHYSICS 2012-2013 Version of Textbook by Roger D. Blandford and Kip S. Thorne http://www.pmaweb.caltech.edu/Courses/ph136/yr2012/ I believe this is a precursor to the following textbook (yet to be released) https://www.amazon.com/dp/0691159025/?tag=pfamazon01-20
  14. E

    I At what point does classical EM become relativistic EM?

    By classical E&M I mean the general basics. I understand that even classical EM has clear relativistic undertones, but is anything taught classically actually wrong under the context of relativistic EM? For example, does Faraday's law continue to hold etc. I know this is kind of a broad...
  15. penelopa

    I Radar Doppler effect: classical vs relativistic

    I think the relativity provides the Doppler shift (in a radar - double version) in a form: ##\frac{1-v}{1+v}## which is quite simple, as a square of a single Doppler: ##f' = f\sqrt{\frac{1-v}{1+v}}## But I never seen what is a classical version of this - what is a formula for a radar shift in...
  16. D

    Many Classical Mechanics Books?

    In the market, it has many many physics books teaching classical mechanics. Do you read one book only or a number of books? How do you make a choice?
  17. O

    I Finding Magnetic Field from Electric Field: A Classical Physics Problem

    Hey guys, i just came across this on my classical physics course. So, I'm given that: E(z, t) = {E_{0}}sin(wt)sin(kz)\widehat{x}, and I'm supposed to find an expression for the associated magnetic field B. Usually, i just find the propagation direction, and do it's cross product with the...
  18. Eagertolearnphysics

    Classical Which is better Morin or Taylor on Classical Mechanics?

    I am a second year physics and I want to study CM in more depth than that of the general textbooks
  19. H

    Problem in Classical Mechanics

    Homework Statement I am stuck over a classical mechanics problem. I tried to solve it, but after having solved the first point, I got stuck on the second one. Here is the problem: >A mechanical structure is composed by 4 rigid thin bars of length $\ell = 8\ m$, mass $m = 5\ kg$ each one. Those...
  20. D

    B Classical experiment violates Bell

    "A unifying principle explaining the numerical bounds of quantum correlations remains elusive, despite the efforts devoted to identifying it. Here, we show that these bounds are indeed not exclusive to quantum theory: for any abstract correlation scenario with compatible measurements, models...
  21. D

    Classical The best physics books to build theoretical knowledge

    Could you name your best picks of books that expand on the high school knowledge. Example is the Goldsteins Classical Mechanics which is a classic. What do you recommend for Electricity and Magnetism, Optics, Relativity and Quantum Mechanics? Also what would be the same criteria for some Math...
  22. 1977ub

    I Quantum to Classical: "comprehensible"?

    Is this statement true? >>... over the past several decades we’ve come to understand that the classical and quantum worlds don’t exactly operate by “different” rules. Rather, the classical world emerges from the quantum in a comprehensible way: you might say that classical physics is simply...
  23. qnach

    Jackson classical electrodynamics section 9-6

    I am not sure what does Jackson want to talk in section 9-6? Is that just a review of something discussed previously? Chapter 9 is talking about radiation, and later about multipole expansion.
  24. phyzguy

    Photon size and classical fields

    <<Moderator note: Split from thread Photon the smallest particle>> @Orodruin - Let me ask a question. This is an aspect of QFT that has always puzzled me. Suppose we have an RF cavity or a laser cavity with a standing E-M wave. I understand that we can view the field in the cavity as a...
  25. LarryS

    I Classical Field Theory for a system of particles

    In classical field theory, the field, φ, is usually constructed from a very large number of coupled harmonic oscillators. Let's say our φ consists of just electrons. What does φ best represent physically, a very large number of electrons or can it represent just a few electrons? Which is the...
  26. F

    Classical mechanics confusions

    Homework Statement Q1. What's the reason behind two identical objects interchanging their velocities upon head-on collision? Why can't just each individual particles just reverse its direction and keep traveling at its original speed? Kinetic energies and momentum would still be conserved. Q2...
  27. brad2292

    How do we formulate the electromagnetic Lagrangian?

    I'm trying to understand how we set up the lagrangian for a charged particle in an electromagnetic field. I know that the lagrangian is given by $$L = \frac{m}{2}\mathbf{\dot{r}}\cdot \mathbf{\dot{r}} -q\phi +q\mathbf{\dot{r}}\cdot \mathbf{A} $$ I can use this to derive the Lorentz force law...
  28. R

    A Classical Physics: Unsolved Problems and Solutions

    We know that unsolved problems still exist in classical physics and scientists still make reasearches , can the scientists solve those problems without using other physics branches like quantum mechanics .. ? Can they solve these problems only with a full understanding of classical mechanics ?
  29. PhotonSSBM

    Studying Picking up necessary Classical Mechanics and E&M for GR

    My professor is mentoring me through learning GR over the next year with the goal of doing research with me in the long term in the field. I need to pick up a few things along the way. The summer is going to be spent mostly picking up the necessary material for jumping into Carroll's book, and...
  30. O

    A satellite, the sun and the satellites heat protector

    Homework Statement A spacecraft is protected from the Sun’s radiation by a planar baffle whose size is much greater than that of the spacecraft itself. The baffle is aligned perpendicular to the direction of the Sun. Show that the equilibrium temperature of the baffle is...
  31. S

    Nonlinear gravity as a classical field theory

    Homework Statement In this problem, you will calculate the perihelion shift of Mercury simply by dimensional analysis. (a) The interactions in gravity have ##\mathcal{L}=M^{2}_{Pl}\Big(-\frac{1}{2}h_{\mu\nu}\Box...
  32. S

    A classical example of spontaneous symmetry breaking

    Homework Statement A simple classical example that demonstrates spontaneous symmetry breaking is described by the Lagrangian for a scalar with a negative mass term: ##\mathcal{L}=-\frac{1}{2}\phi\Box\phi + \frac{1}{2}m^{2}\phi^{2}-\frac{\lambda}{4!}\phi^{4}##. (a) How many constants ##c##...
  33. T

    Problem with classical mechanics

    Hi guys i have a problem and I'm not able to solve it. I have a cube lying on the ground that is hinged on a side in contact with the floor. Right above the hinge there is a rod hinged (at the start time the rod is horizzontal) and it is long enough to touch the cube when it fall...how much the...
  34. A. Neumaier

    B Is classical mechanics philosophically sound?

    They are subjective even in the classical, nonrelativistic mechanics of a pendulum, since the notions appear when you try to relate the theory to a real pendulum. In classical, nonrelativistic mechanics, the interpretation of the words ''observation'', ''experiment'' and ''measurement'' needed...
  35. S

    Scale Invariant Classical Field Theory

    Homework Statement A class of interesting theories are invariant under the scaling of all lengths by ##x^{\mu} \rightarrow (x')^{\mu}=\lambda x^{\mu}## and ##\phi(x) \rightarrow \phi'(x) = \lambda^{-D}\phi(\lambda^{-1}x)##. Here ##D## is called the scaling dimension of the field. Consider...
  36. Erebus_Oneiros

    I Angular Momentum, classical vector analogy?

    If one can't ever know all the three components of (QM) angular momentum, then can it even be considered as a "vector"? Is it only cause it transforms as a vector in a coordinate transformation?
  37. I

    Other Calculus or Classical Mechanics

    Hi I am a high school student and I am about to graduate. within few months I am planning to study physics field if I pass the University selection. I love physics after I found the beauty of Quantum Mechanics, General Relativity, Thermodynamics, etc. Although I want to dive in those field, I...
  38. S

    Courses Interest in Areas of Classical Mechanics

    What are Hamiltonian/Lagrangian Mechanics and how are they different from Newtonian? What are the benefits to studying them and at what year do they generally teach you this at a university? What are the maths required for learning them?
  39. S

    Maxwell's equations in Lagrangian classical field theory

    Homework Statement Given the Maxwell Lagrangian ##\mathcal{L} = -\frac{1}{2} (\partial_{\mu}A_{\nu})(\partial^{\mu}A^{\nu}) + \frac{1}{2} (\partial_{\mu}A^{\mu})^{2}##, show that (a) ##\frac{\partial \mathcal{L}}{\partial (\partial_{\mu}A_{\nu})} = -...
  40. DeldotB

    Calculate the Lagrangian of a coupled pendulum system

    Homework Statement Calculate the Lagrangian of this set up: Imagine having two ropes: They are both attached to the ceiling and have different lengths. One has length b and the other has length 4b. Say they are hooked to the ceiling a distance 4b apart. Now, the ropes are both hooked to a...
  41. hideelo

    I Researching Causal Structure in Classical GR for Graduate Course

    I am currently taking graduate course in GR following Carroll and Wald and we just started covering causal structure. In all my years studying physics this has been the first time something made me stop and go "I would love to spend a decade on this". To me it's a perfect blend of well posed...
  42. SophiaSimon

    Classical Mechanics: Inertial Reference Frames

    Homework Statement Classical Mechanics: John Taylor[/B] (1.27) The hallmark of an inertial reference frame is that any object which is subject to a zero net force will travel in a straight line at a constant speed. To illustrate this, consider the following experiment: I am standing on the...
  43. J

    A Quantum versus classical computation of the density of state

    Hi, If I consider for instance N non interacting particles in a box, I can compute the energy spectrum quantum mechanically, and thus the number of (quantum) microstates corresponding to a total energy between $E_0$ and $E_0 + \delta E$. In the limit of large quantum numbers, the result is well...
  44. S

    A Solution of the classical Klein-Gordon equation

    The classical Klein-Gordon equation is ##(\partial^{2}+m^{2})\varphi(t,\vec{x})=0##. To solve this equation, we need to Fourier transform ##\varphi(t,\vec{x})## with respect to its space coordinates to obtain ##\varphi(t,\vec{x}) = \int...
  45. anarchean

    Classical I need some directions of books on classical mechanics

    Hi, I'm new to the forum, I'd like some recommendations of books on classical mechanics. Too vague, right? I'm a CS student, with a great disposition for mathematics and great love for physics. I've learned one-variable calculus through Stewart and I'm starting linear algebra with Strang and...
  46. gonadas91

    I Does the Equal A Priori Probabilities Assumption Hold for Interacting Gases?

    Hi! My question has to be with the equal a priori probabilities assumption in the microcanonical ensemble when we consider an interacting system, that is, particles interacting between them but no external work or heat is done over the system. Does this assumption still hold for such a system...
  47. F

    B Quantum to Classical Particles: Understanding the Entropy Limit

    I have heard that identical distinguishable classical particles having different ''statistics''.It is the limit of quantum case.Then we mix many parts(cells) of identical gases, the total entropy increases.I can not derive this limit from quantum particles to classical particles(please help...
  48. Aafia

    I How can we distinguish classical physics and modern physics?

    How to decide whether a particular topic is studied in classical physics or modern physics?
  49. dextercioby

    A CED: Solving the Full-blown Classical Electromagnetism Problem

    Is it me, or the overall problem in CED is not addressed anywhere? Statement of the problem: Let there be two massive electrically charged particles of invariant masses m1 and m2 and electric charges q1 and q2, respectively. They are free to move arbitrarily in Minkowski spacetime endowed with...
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