Classical Physics Forum

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Join expert classical physics discussion on the principles developed before the rise of relativity and quantum mechanics. Including mechanics, electrodynamics, thermodynamics, optics.

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Mechanics

Observation about the rotation of a disc
27.6K threads
Graduate Observation about the rotation of a disc

Optics

Question about computing diffraction patterns
8.2K threads
High School Question about computing diffraction patterns

Thermodynamics

Musing on the Foundations of Statistical Mechanics
7.4K threads
Graduate Musing on the Foundations of Statistical Mechanics

Electromagnetism

A magnetostatics problem of interest 2
16.3K threads
Graduate A magnetostatics problem of interest 2
High School Why soda bubbles when you shake it
  • bobsmith76
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High School Strange question, but is time and actual thing ?
  • missmallyb
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Graduate Derivation of Kutta Joukowski condition
  • DrDu
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Undergrad Has anybody heard of this odd sub-type of physics and geology?
  • ax3111
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Undergrad Geostationary Satellite Equatorial Plane
  • emailanmol
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Graduate When is it More Cost-Effective to Add a Staircase vs. More Floorspace?
  • H2Bro
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High School What happens when an explosion begins
  • oneswarm
  • · Replies 1 ·
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High School How do I calculate a pumps psi output?
  • jimhebert
  • · Replies 19 ·
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19
High School Understanding Fluctuations in Multimeter Readings
  • BlackHole213
  • · Replies 6 ·
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6
Graduate Negative Energy in Particles: A Conundrum
  • GravitatisVis
  • · Replies 3 ·
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3
Graduate Is the phase diagram for an oscilliator always clockwise?
  • AlonsoMcLaren
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2
Undergrad Flow separation leads to stalling?
  • tsimon
  • · Replies 17 ·
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17
Undergrad Mysteries in Classical Physics
  • absurdist
  • · Replies 7 ·
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7
Graduate Why does gravitational Laplace's equation equal zero?
  • peter46464
  • · Replies 3 ·
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3
Undergrad Oscilloscope triggering function on aperiodic signals
  • fisico30
  • · Replies 1 ·
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Undergrad Why does f(x-vt) represent a wave along +x?
  • binrdow
  • · Replies 10 ·
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10
Graduate Does a medium have to have mass to 'be' a medium?
  • Ralphonsicus
  • · Replies 2 ·
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2
Undergrad Name of intermolecular forces of gases
  • stevmg
  • · Replies 18 ·
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18
Graduate Is Infinite Compressibility Possible in a System?
  • ShadowDatsas
  • · Replies 3 ·
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3
High School Why Do We Need Specific Launch Sites for Space Exploration?
  • hrshovon90
  • · Replies 8 ·
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8
Graduate What is the P.D.E. governing this phenomemon?
  • lavinia
  • · Replies 1 ·
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1
Undergrad Propagation of waves on a string
  • maxwellcauchy
  • · Replies 5 ·
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5
Graduate Physical meaning of Radius of Gyration
  • Chirag740
  • · Replies 1 ·
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1
Undergrad How can animal fence wire be optimized for minimal cost?
  • joebokl
  • · Replies 9 ·
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9
Undergrad What does determine the harmonic number in standing waves?
  • brainyman89
  • · Replies 4 ·
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4
Undergrad Doppler Effect: Will the Frequency Change Upon Reflection?
  • brainyman89
  • · Replies 1 ·
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1
Graduate When to use fourier integral instead of fourier series expansion
  • Naughty Boy
  • · Replies 2 ·
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2
Undergrad Implications of Imaginary Numbers?
  • Sobeita
  • · Replies 48 ·
2
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48
Graduate Understanding what a stagnation point is in compressible flow
  • Urmi Roy
  • · Replies 31 ·
2
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Undergrad Is the wave equation applicable to all types of waves beyond harmonic motion?
  • aaaa202
  • · Replies 2 ·
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Undergrad Principia confusing sentence. Please make is simpler
  • sabanation12
  • · Replies 5 ·
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5
High School Phase Angle Explained: What is It?
  • Asif Munawar
  • · Replies 2 ·
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2
Undergrad How to prove units when you have logs in an equation
  • gtbiyb
  • · Replies 11 ·
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11
Undergrad Calculating Stress in Joules: My Experience
  • slingboi
  • · Replies 2 ·
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2
Graduate Earth movement and physical vacuum energy harness
  • Stanley514
  • · Replies 3 ·
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3
High School Calculating Blower Flow in CFM - Required Data & Equation
  • Eng.Ayed
  • · Replies 4 ·
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4
Newbie to the Forum with Professional Physics Simulation Background
  • voxilla
  • · Replies 1 ·
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Undergrad Harmonic Wave Equation: What Are x & t (Length & Time Units)?
  • anigeo
  • · Replies 6 ·
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6
Graduate Aphex Twin's Equation: Meaning and Significance
  • LAHLH
  • · Replies 7 ·
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7
Graduate Nonlinear Physics Books: Recent Progress & Related Fields
  • Euphemia
  • · Replies 6 ·
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6
Undergrad Simulating musical instruments with tuning forks
  • Isaiah Gray
  • · Replies 3 ·
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3
Is there any way that we can defy gravity?
  • pairofstrings
  • · Replies 9 ·
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9
Is there a term called 'Wave Factor'?
  • kranav
  • · Replies 7 ·
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7
High School Does the dewpoint dry the air effectively?
  • falcon32
  • · Replies 6 ·
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6
Graduate Hard to find bubble rise paper/bubble shape determination
  • 11bolts
  • · Replies 4 ·
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4
Graduate Landau theory: why does a m^3 term implies first order transition phase
  • IRobot
  • · Replies 4 ·
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4
High School What physics programs should I add to my TI-84Plus?
  • Ryantruran
  • · Replies 3 ·
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3
Undergrad Safe Gauss Levels: Human Limit & Everyday Exposure
  • gcodyb
  • · Replies 3 ·
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3
Graduate Ultrasonic Frequencies: Harassment or Something Else?
  • lauren10
  • · Replies 1 ·
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1
Undergrad Mass continuity equation's applications for fluid
  • Tosh5457
  • · Replies 1 ·
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1
Undergrad Determining Likelihood of Divergance
  • Aston08
  • · Replies 4 ·
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4
Solve Famous Physicist's Equations: a, b, v, w, y
  • mtbdoc
  • · Replies 6 ·
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6
Graduate Forced Vortex in Earth's Atmosphere: Height and Density Distribution Explained
  • luckis11
  • · Replies 13 ·
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13
Graduate Wave equation, general solution, cylindrical symmetry
  • lalbatros
  • · Replies 4 ·
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4
Undergrad Understanding the Basics of Reynolds Transport Theorem
  • bluepleiadez
  • · Replies 1 ·
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1
High School Solid Angle Diagram: What is a Plane & Solid Angle? 1 sr & 1 rad Defined
  • SpaceExplorer
  • · Replies 7 ·
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7
High School What is the Geometric Centre of a Body?
  • anigeo
  • · Replies 1 ·
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1
High School How can you determine the latitude of your house?
  • wdlang
  • · Replies 5 ·
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5
Undergrad Why Vectors product the way it is?
  • IWantToLearn
  • · Replies 37 ·
2
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37
Undergrad Does Betz Law Apply to Helicopters?
  • Einherjer
  • · Replies 1 ·
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1
Graduate Numerical Studies: Research Ideas for Simulating Phenomena
  • vivek.iitd
  • · Replies 3 ·
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3
High School Uncovering the Physics Behind Everyday Phenomena
  • gikiian
  • · Replies 5 ·
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5
Uncovering the Life of Mr. IE Irodov
  • peeyush_ali
  • · Replies 2 ·
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2
High School At Center of Earth: Weightless or Crushed?
  • Cyrus
  • · Replies 74 ·
3
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74
High School Fundamental Equations of Classical Physics
  • Xyius
  • · Replies 23 ·
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23
Graduate D'Alembert's solution of the wave equation
  • Gear300
  • · Replies 3 ·
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3
Undergrad Transposing the hydraulic diameter formula
  • Xpind
  • · Replies 4 ·
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4
Undergrad Any truth to discharging our bodies?
  • pinchharmonic
  • · Replies 6 ·
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6
Undergrad What is a second-order phase transition?
  • Nusc
  • · Replies 2 ·
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2
Graduate General Formula Resistors Polyhedron
  • luiseduardo
  • · Replies 3 ·
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3
Graduate Building Planets: Explaining Expression (??) in Planet Construction
  • vaibhavtewari
  • · Replies 5 ·
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5
Undergrad Is Energy from the Sun Radiated in a Vacuum?
  • Petyab
  • · Replies 17 ·
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17
Graduate Suggestions for an advanced physics lab project
  • FrancisD
  • · Replies 2 ·
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2
High School Stirring tea with floating leaves
  • Himal kharel
  • · Replies 22 ·
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22
Graduate Classical explanation of Photodissociation?
  • Justin Hawk
  • · Replies 3 ·
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3
Graduate Good physics books for mathematicians
  • Ronen
  • · Replies 2 ·
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2
High School Hole in Parachutes: Why is It Necessary?
  • Himal kharel
  • · Replies 2 ·
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2
High School Contradiction regarding capillarity
  • Himal kharel
  • · Replies 2 ·
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2
Undergrad Understanding FFT Power Spectrum, Phase and Magnitude: Clearing Doubts
  • rama1001
  • · Replies 11 ·
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11
Undergrad Is there any quantity in physics that has the unit kg^2 in it?
  • labview1958
  • · Replies 9 ·
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9
Undergrad Energy of Wave: Does Amplitude Affect E?
  • jaumzaum
  • · Replies 3 ·
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3
Graduate SI: Why relying to such a definition of a kilogram?
  • fluidistic
  • · Replies 13 ·
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13
Undergrad How Do Harmonics Work on a Guitar String?
  • jaumzaum
  • · Replies 8 ·
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8
Undergrad Vladimir G Ivancevic, who is he? credible?
  • linsnos
  • · Replies 3 ·
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3
Graduate Why do Spherical Non-Oscillating Bubbles Dissolve in Saturated Liquids?
  • Ronald_Ku
  • · Replies 7 ·
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7
Graduate Is Power Balance a Valid Criterion for Oscillating System Stability?
  • micopl
  • · Replies 3 ·
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3
Graduate Wilson's GF Method (molecular vibrations)
  • jaejoon89
  • · Replies 2 ·
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2
Undergrad Conceptual quest on standing wave
  • PrakashPhy
  • · Replies 5 ·
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5
Undergrad Frequence of resonating wine glass
  • ZeroGravity
  • · Replies 12 ·
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12
Graduate Where does this equation come from?
  • hermano
  • · Replies 2 ·
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2
Graduate Understanding classical stochastic systems
  • spaghetti3451
  • · Replies 3 ·
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3
Undergrad Understanding Normal Mode: What is it?
  • hokhani
  • · Replies 2 ·
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2
Undergrad Molecular Geometrical Representation
  • y33t
  • · Replies 2 ·
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2
Graduate How much of visible sky is occupied by CO2?
  • lancelot
  • · Replies 5 ·
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5
Graduate Troubleshooting Evaporation Simulation for Flash Animation: Tips and Suggestions
  • Steger
  • · Replies 4 ·
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4
Undergrad How does a salt bridge prevent charge buildup in a galvanic cell?
  • gkangelexa
  • · Replies 1 ·
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1
High School Why is glass transparent and solid?
  • i.mehrzad
  • · Replies 13 ·
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13
Graduate Unit reduction is not making sense, what's going on?
  • unreal89
  • · Replies 6 ·
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6
Graduate Can energy-interfered waves be used in encryption?
  • thebiggerbang
  • · Replies 17 ·
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Graduate What causes materials to be lossy and how can this loss be measured?
  • randomafk
  • · Replies 2 ·
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