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
Undergrad What is the significance of phase constant in the wave equation?
  • Sciencer
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Undergrad Desciribing intensity of human scream?
  • utkarsh5
  • · Replies 4 ·
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4
Undergrad Questions About Motorcycle Speed, Short Circuit & Resistance
  • alexmath
  • · Replies 11 ·
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11
High School Need help on basic fluid volume calculation
  • brembo
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Undergrad Conductivity of metals at 0 kelvin?
  • spectrum123
  • · Replies 34 ·
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High School Is the US Prepared for an EMP Attack?
  • yoyopizza
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High School What is the volume of these round pipes?
  • IJC7
  • · Replies 9 ·
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9
Graduate Solving the 3-Body Problem: Resources for Learning
  • fvicaria
  • · Replies 7 ·
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7
Undergrad What is the equation for a transverse wave with periodic boundary conditions?
  • LizardCobra
  • · Replies 11 ·
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Graduate Are There Real-World Examples of Asymptotically Stable Nodes?
  • IWantToLearn
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2
Graduate How is earth resonance,EM stationary wave and ELF related to transmit energy?
  • aditya23456
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2
Undergrad Is g affected by other sources of gravity?
  • ViolentCorpse
  • · Replies 24 ·
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24
Undergrad Finding the air cavity resonance of a propane tank for a drum.
  • great_sushi
  • · Replies 3 ·
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3
Undergrad Simple sinusoidal wave can't convey information?
  • Mesmerized
  • · Replies 4 ·
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4
Graduate Standing waves on arbitrary membrane
  • the4thamigo_uk
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Graduate Why the core spin faster than the manlte
  • Joshua Nuijen
  • · Replies 3 ·
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3
High School If everything has energy Which thing can be an energy source?
  • Miyz
  • · Replies 10 ·
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10
Undergrad Open End of Tube: Resonance & Antinodes/Nodes
  • amk_dbz
  • · Replies 1 ·
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1
High School Why do physics exist? objects interacting ect?
  • realflow100
  • · Replies 3 ·
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3
Which Is Correct: Equilibrant or Equilibriant?
  • Peppino
  • · Replies 2 ·
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2
High School Can Quartz Crystals Convert Heat to AC Electricity?
  • duordi134
  • · Replies 3 ·
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3
High School Why Do Elements Behave Differently as Gas or Liquid?”
  • scientifico
  • · Replies 10 ·
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10
Resonance in action: Russian Bridge
  • Hetware
  • · Replies 1 ·
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1
Undergrad Zero gravitation is it possible
  • paras02
  • · Replies 2 ·
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2
Graduate What is a space/spatail harmonic?
  • shpongle
  • · Replies 2 ·
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2
Undergrad Confused about definition of wavelength
  • V0ODO0CH1LD
  • · Replies 2 ·
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2
Undergrad The meaning of vector/cross product
  • nothing0
  • · Replies 7 ·
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7
Graduate Boundary condition problem for diffusion equation
  • brambram
  • · Replies 3 ·
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3
Undergrad Is Energy Scalar or Vector, and How Does Dimensionality Affect It?
  • big_bounce
  • · Replies 7 ·
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7
High School Why Do We Experience Two Tides on Earth Simultaneously?
  • SMarioKingdom
  • · Replies 11 ·
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11
Graduate Gravitational Constant Measurement ?
  • Debo Industry
  • · Replies 3 ·
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3
High School What is s for length derived from?
  • KayEl9
  • · Replies 2 ·
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2
Graduate The Rayleigh-Plesset Equation for Sonoluminescence
  • Ashiataka
  • · Replies 2 ·
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2
Undergrad Reduced Mass: Origin & Significance
  • Shan K
  • · Replies 4 ·
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4
Graduate What are the equations for whistling in a convoluted tube?
  • manjagu
  • · Replies 2 ·
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2
High School What happens to cohesive forces when things break?
  • AlchemistK
  • · Replies 1 ·
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1
High School Gyroscope Principles: Explaining How it Works Without Math
  • Aniket1
  • · Replies 3 ·
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3
Undergrad Losing the Units: Explaining Why Exponentials are Dimensionless
  • starzero
  • · Replies 3 ·
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3
Undergrad Where Can I Find a Pressure-Temperature Phase Diagram for Pure Methanol?
  • Chemist20
  • · Replies 3 ·
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3
High School Solve SAT Physics Test: Problem-Solving Help
  • tmntbunny
  • · Replies 2 ·
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2
High School Understanding the Significance of 0.0 and 0.0000 in Numbers - Expert Advice
  • 121910marj
  • · Replies 14 ·
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14
Graduate Markov property and chemical oscillators
  • cjolley
  • · Replies 1 ·
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1
Undergrad Plastics to tolerate -300F for liquid nitrogen generation
  • imsmooth
  • · Replies 4 ·
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4
High School Ion Thrusters - How much do they cost?
  • CognitiveNet
  • · Replies 9 ·
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9
Undergrad Algae producing oxygen in diving cylinder?
  • CognitiveNet
  • · Replies 6 ·
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6
Undergrad Understanding the Significance of the Linear Wave Equation in Wave Mechanics
  • member 392791
  • · Replies 2 ·
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2
Undergrad What does the Centroid of area under Rate vs Time plot represent?
  • geetar_king
  • · Replies 6 ·
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6
Undergrad Fluid Flow Questions: Gas Flow Direction
  • jyakulis
  • · Replies 14 ·
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14
Undergrad How was a unit of energy first defined?
  • Alutoe
  • · Replies 1 ·
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1
Download Physics Symbols & Fonts: Free Resources
  • Roodles01
  • · Replies 1 ·
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1
  • Poll Poll
Graduate A quick poll on a semantic matter
  • nicksauce
  • · Replies 17 ·
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17
Graduate Noise term η(t) in Langevin equation
  • xiaoding
  • · Replies 1 ·
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1
Undergrad BTU rating of Earth below frost line
  • sday
  • · Replies 6 ·
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6
Undergrad How effective is torricellian vaccum?
  • utkarsh5
  • · Replies 5 ·
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5
Graduate Gravitational field Strength Inside the Earth
  • Yh Hoo
  • · Replies 2 ·
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2
Undergrad Parallax during the earth's orbit?
  • AbsoluteZer0
  • · Replies 1 ·
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1
Undergrad Reciprocity theorem and ideal gas law
  • cooper607
  • · Replies 1 ·
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1
Graduate How Does an Obstacle Affect Wave Parameters?
  • MahIzadYar
  • · Replies 3 ·
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3
Graduate Adding or removing energy from a guitar string.
  • Spinnor
  • · Replies 2 ·
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2
Undergrad Probability of past vs future events
  • bahamagreen
  • · Replies 3 ·
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3
Graduate Pascal's law out of statistical physics
  • Joschua_S
  • · Replies 1 ·
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1
Undergrad Can wind chill cause frostbite at above freezing temperatures?
  • BradP
  • · Replies 1 ·
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1
Graduate Why partial derivatives in continuity equation?
  • biubiu
  • · Replies 1 ·
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1
Graduate Why use primed coordinates for this
  • aaaa202
  • · Replies 3 ·
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3
Undergrad Longitudinal/Transverse oscillations
  • CAF123
  • · Replies 1 ·
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1
High School Musical instruments - beats phenomenon
  • CAF123
  • · Replies 3 ·
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3
Graduate How is Ising Model a Markov Chain?
  • marschmellow
  • · Replies 7 ·
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7
Undergrad Ionize N2 & CO2 at 50g/s - Easiest Way?
  • mehoody
  • · Replies 1 ·
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1
Undergrad Can chemical reactions take place at absolute zero?
  • conradcook
  • · Replies 5 ·
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5
Graduate Question on waves propagation from a moving frame
  • QuArK21343
  • · Replies 1 ·
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1
Undergrad How to open a winebottle with a shoe
  • spareine
  • · Replies 14 ·
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14
Graduate Would a syringe in space suck?
  • Lensmonkey
  • · Replies 3 ·
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3
Undergrad How Do Cathode Rays Penetrate Thin Metal Films?
  • krisn
  • · Replies 7 ·
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7
Undergrad Improve Your Understanding of Vibrations and Waves: Top Books for Self-Learning
  • VktGS
  • · Replies 1 ·
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1
High School What is ripple factor in halfwave rectifier?
  • jd12345
  • · Replies 2 ·
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2
Undergrad Is it possible to create a SINGLE circular wave?
  • titaniumpen
  • · Replies 2 ·
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2
Undergrad Wavelength and resonant length equation
  • baouba
  • · Replies 1 ·
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1
High School Air Displacement: Effects of Multiple Fans
  • EvanJ
  • · Replies 26 ·
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26
Graduate Something that absorbs at longer wavelengths looks more red?
  • LogicX
  • · Replies 12 ·
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12
Undergrad Amplitude Modulation equation help
  • dmorr
  • · Replies 4 ·
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4
Undergrad Amplitude Modulation Phenomona
  • dmorr
  • · Replies 3 ·
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3
Graduate Does capillary length limit water rise in very thin capillaries?
  • Medicago
  • · Replies 5 ·
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5
Undergrad Can some clarify what exactly n is ?
  • GreenAce92
  • · Replies 5 ·
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5
High School Wind tunnel simulation software
  • SMD1990
  • · Replies 5 ·
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5
Graduate Explore the N-Body Problem for Chaos
  • thehoten
  • · Replies 1 ·
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1
Graduate Normal modes and system's energy
  • Tosh5457
  • · Replies 3 ·
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3
High School Is cycle the same as wavelength?
  • baouba
  • · Replies 1 ·
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1
Undergrad What is effective conductivity?
  • Xyius
  • · Replies 5 ·
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5
Undergrad Why perrin's experiment demonstrates the existence of atoms?
  • wdlang
  • · Replies 7 ·
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7
Undergrad The Constant of Integration
  • fizzacist
  • · Replies 3 ·
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3
High School What is the difference between standing waves and transverse waves?
  • Zananok
  • · Replies 6 ·
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6
Undergrad Chaotic system w/ initial condition
  • Brown Arrow
  • · Replies 3 ·
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3
Undergrad Could you make a fluorescent lamp with krypton?
  • 00152
  • · Replies 6 ·
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6
High School Can Someone give me a good despriction of Classical Physics?
  • Physgeek123
  • · Replies 4 ·
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4
Undergrad Does the amplitude of a wave change with the Doppler effect in a medium?
  • omtri
  • · Replies 8 ·
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8
High School Struggling with Unit Conversions in Physics Problems?
  • Nervous
  • · Replies 2 ·
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2
Undergrad Why Doesn't Air Pressure Affect Archimedes' Principle?
  • HWGXX7
  • · Replies 8 ·
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8
Undergrad Hall Coefficients of Tungsten & Silver: Sources/Links to Cite
  • Liquidxlax
  • · Replies 2 ·
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2
High School Night Vision Goggles: Explained + Density Effects
  • Great Smoky
  • · Replies 2 ·
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2
High School A friend of mine who knows I believe in God but also put faith in
  • Wingnuts
  • · Replies 12 ·
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12