Classical Physics Forum

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

Sub-forums

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
Graduate Wave on a string, something like E and B?
  • Spinnor
  • · Replies 18 ·
Replies
18
High School What liquids have the ability to freeze quickly?
  • lgaa
  • · Replies 12 ·
Replies
12
Undergrad Clear explanation of Doppler effect assimmetry
  • DaTario
  • · Replies 7 ·
Replies
7
Undergrad Measuring the thickness of a thin film of bismuth for Hall Effect experiment.
  • adwodon
  • · Replies 1 ·
Replies
1
Graduate What is the derivation of the wave equation for traveling waves?
  • emailanmol
  • · Replies 10 ·
Replies
10
High School Energy proportional to Amplitude squared?
  • SamRoss
  • · Replies 7 ·
Replies
7
High School Is there an interactive physics training software?
  • Sum1
  • · Replies 1 ·
Replies
1
High School Middle of Earth: Atom or No Atom?
  • binbots
  • · Replies 4 ·
Replies
4
Undergrad Flow through pipes and throttling valves .NEED HELP
  • JPEng
  • · Replies 4 ·
Replies
4
Graduate What is the difference between dynamical symmetry and geometrical symmetry?
  • wdlang
  • · Replies 5 ·
Replies
5
Undergrad Vacuum Systems with Series Connected Pumps - Get Answers Now
  • Kamilan
  • · Replies 8 ·
Replies
8
High School If I take an empty ordinary drinks bottle, place it in my mouth and
  • jamesd2008
  • · Replies 8 ·
Replies
8
High School Energy in Vibrations: 100Kg at 10Hz & 10mm/s
  • Great-dane
  • · Replies 9 ·
Replies
9
Graduate Energy losses in a vibrating string
  • cesiumfrog
  • · Replies 11 ·
Replies
11
Graduate The different Fourier Transforms
  • Identity
  • · Replies 3 ·
Replies
3
Undergrad What is CFD where can i get it how can i learn it
  • sam.fallahi
  • · Replies 7 ·
Replies
7
Undergrad What is the purpose of collimators in cancer therapy?
  • lavster
  • · Replies 4 ·
Replies
4
Graduate Why must stream function be 2d?
  • Weather Freak
  • · Replies 1 ·
Replies
1
Graduate Getting down of battery in ideal situation
  • waqarrashid33
  • · Replies 3 ·
Replies
3
High School For two abjects of same material the following law must obeyed
  • waqarrashid33
  • · Replies 2 ·
Replies
2
High School Matter cannot be created nor destroyed
  • dcderek24
  • · Replies 8 ·
Replies
8
What are the 8 formulas I need to locate in my textbook?
  • vantz
  • · Replies 4 ·
Replies
4
High School How do I convert g/cm3 to Kg/ft3?
  • NXSmiggy
  • · Replies 4 ·
Replies
4
Graduate Understanding the Principles of Hashin-Shtrikman Bounds: A Simple Explanation
  • handsomecat
  • · Replies 2 ·
Replies
2
Graduate Maximum Surface Area of a Flat Surface
  • omalleyt
  • · Replies 27 ·
Replies
27
Graduate Inner Ear Cooling Experiment: Non-Toxic Substance for Convection Study
  • THaugen
  • · Replies 2 ·
Replies
2
High School What is the theory of a raindrop?
  • mersecske
  • · Replies 9 ·
Replies
9
Graduate Why are things NOT scale-invariant?
  • nonequilibrium
  • · Replies 6 ·
Replies
6
Undergrad Gravitational Force at the Center of the Earth?
  • Kaoi
  • · Replies 23 ·
Replies
23
Undergrad Monopole crystal radio antenna length
  • davidhills
  • · Replies 18 ·
Replies
18
Graduate Researching Open Air Column Resonance - Surprising Results
  • cleb
  • · Replies 9 ·
Replies
9
Undergrad Omega0=2*delta - Understanding Resonance Phenomenon
  • JohnGreen
  • · Replies 2 ·
Replies
2
Graduate Explaining Wave Equation Solution for Vibrating Strings
  • mahdert
  • · Replies 5 ·
Replies
5
High School Does the Size of a Manometer Tube Affect Pressure Measurement Accuracy?
  • fishingspree2
  • · Replies 1 ·
Replies
1
Undergrad While reading gravitation chapter I
  • Alche
  • · Replies 3 ·
Replies
3
High School Is a Backflow Valve Necessary for Swimming Pool Levels?
  • talk2glenn
  • · Replies 2 ·
Replies
2
Undergrad How do I calculate / convert GPM to PSI ?
  • kck
  • · Replies 4 ·
Replies
4
Undergrad How Do Brightness and Luminosity Differ in Energy Terms?
  • sancharsharma
  • · Replies 3 ·
Replies
3
Graduate Maximizing Plug Flow Efficiency for CSTR Blending: Expert Tips & Strategies
  • colen212
  • · Replies 2 ·
Replies
2
Undergrad What increases at the speaker with the increase of loudless-intensity?
  • luckis11
  • · Replies 1 ·
Replies
1
Graduate Simulating Random Walk: Calculating Diffusion Length
  • AndersonMD
  • · Replies 4 ·
Replies
4
Undergrad How Did Scientists Determine Avogadro's Number?
  • John Galaor
  • · Replies 2 ·
Replies
2
High School Maximizing Battery Life: Tips for Storing Electronic Devices
  • NanjoeBot
  • · Replies 1 ·
Replies
1
Undergrad Closed loop of classical string
  • zwoodrow
  • · Replies 2 ·
Replies
2
Graduate What Drives Capillary Action and Its Origins?
  • dEdt
  • · Replies 6 ·
Replies
6
Graduate Non-dimensionalization of a wave equation with point source
  • LightningStrike
  • · Replies 6 ·
Replies
6
Graduate Splitting wave equation into x-component and y-component
  • nkinar
  • · Replies 16 ·
Replies
16
High School What is the difference between a parameter and a variable?
  • arroy_0205
  • · Replies 2 ·
Replies
2
Undergrad What Is the Definition of Mass in Physics?
  • Cleonis
  • · Replies 1 ·
Replies
1
Undergrad Do you think cell phones pose a health risk?
  • localrob
  • · Replies 2 ·
Replies
2
Undergrad Inverse Square Law in 1 dimensional space
  • Izhaki
  • · Replies 9 ·
Replies
9
High School Does the Medium Affect Gravitational Constant G?
  • yaseen shah
  • · Replies 2 ·
Replies
2
Undergrad Cathode Rays Experiment some missunderstood parts
  • Maisara-WD
  • · Replies 2 ·
Replies
2
Graduate Potentail Energy beyond infinity
  • Ali Asadullah
  • · Replies 3 ·
Replies
3
Undergrad 1st and 2d order phase transitions
  • paweld
  • · Replies 7 ·
Replies
7
Undergrad Mass Flow through a 1.5 Pipe @ 300kpa
  • NateP
  • · Replies 4 ·
Replies
4
Undergrad What is the Quantitative Measure for Frequency Beats in Recorded Drum Sounds?
  • sketchtrack
  • · Replies 7 ·
Replies
7
Graduate Physicists Explain Amoeboid Movement
  • GRDixon
  • · Replies 14 ·
Replies
14
Undergrad Research Assistant: Qualifications & Skills Required
  • koolraj09
  • · Replies 1 ·
Replies
1
High School What is Sub i? Meaning and Usage in Physics Equations
  • The riddler
  • · Replies 1 ·
Replies
1
If a black object warms faster during the day, does it cool faster at night?
  • ideogram
  • · Replies 10 ·
Replies
10
Undergrad Understanding Non Equilibrium Systems: Definition and Examples
  • germana2006
  • · Replies 1 ·
Replies
1
Air Conditioner: Cool Your Home Comfortably
  • hagopbul
  • · Replies 3 ·
Replies
3
Undergrad Sonometer Experiment: Measuring AC Mains Frequency
  • Ali Asadullah
  • · Replies 1 ·
Replies
1
Undergrad Degree of freedom definition help
  • roshan2004
  • · Replies 1 ·
Replies
1
Undergrad Orthotropic materials defined by 9 constants
  • johnjaypl
  • · Replies 4 ·
Replies
4
Graduate Does Capillary Diameter Affect Flow Rate Stability in a Decreasing Vacuum?
  • taggart
  • · Replies 1 ·
Replies
1
Graduate Diffusion equation in sperical coordinates
  • lostidentity
  • · Replies 2 ·
Replies
2
Graduate What is the point of repeating TR signals in MRI
  • gladius999
  • · Replies 1 ·
Replies
1
Undergrad Questions About Fluids & Buoyancy
  • Red_CCF
  • · Replies 21 ·
Replies
21
Undergrad Why has evolution failed to utilise radio transmission & reception?
  • unusualname
  • · Replies 50 ·
2
Replies
50
Graduate Langmuir waves dispersion relation
  • ian2012
  • · Replies 2 ·
Replies
2
High School Why Do Liquids Behave Differently Than Solids?
  • R Power
  • · Replies 5 ·
Replies
5
Graduate Dispersion of soluble matter in tube
  • jencam
  • · Replies 4 ·
Replies
4
Undergrad A philosophical question about piston and vacuum
  • frankja
  • · Replies 5 ·
Replies
5
Undergrad Will Siphons Function in a Vacuum Without Air Pressure?
  • moronthat
  • · Replies 4 ·
Replies
4
Graduate Introduction to Dirac's Conjecture
  • earth2
  • · Replies 4 ·
Replies
4
Undergrad Negative Energy in Newtonian Mechanics: Explained
  • gdpudasaini
  • · Replies 3 ·
Replies
3
Undergrad Investigating Energy Conservation with Sinusoidal Waves
  • landaetaedwar
  • · Replies 4 ·
Replies
4
Undergrad Fluid Dynamics Basics: Mass, Flow Rate & Density
  • diagopod
  • · Replies 2 ·
Replies
2
Undergrad Propagating Wave: Explaining Oscillation & Sine Wave
  • Cerkit
  • · Replies 4 ·
Replies
4
Undergrad What Does Perfectly Rough Mean in Surface Interactions?
  • delve
  • · Replies 1 ·
Replies
1
Graduate Geometrical interpretation of gradient
  • Reshma
  • · Replies 15 ·
Replies
15
Graduate Calculation of material properties in transformation media
  • radiofeda
  • · Replies 2 ·
Replies
2
High School Object Property: Describing an Object
  • astro2cosmos
  • · Replies 4 ·
Replies
4
Graduate Reflection of Waves on a String: Understanding Mass and Phase Differences"
  • Aequiveri
  • · Replies 2 ·
Replies
2
Undergrad Standing Wave Equation: Exploring Y = 2Asin(\omegat)cos(kx)
  • j-e_c
  • · Replies 1 ·
Replies
1
Undergrad Is it possible to calculate earth's massiveness
  • pankaj66866
  • · Replies 15 ·
Replies
15
Graduate Understanding Dispersion Relations in Fluid Dynamics
  • nickthequick
  • · Replies 1 ·
Replies
1
Undergrad Can a dielectic MATERIAL IS A INSULATOR?
  • SAINATHAN
  • · Replies 1 ·
Replies
1
Undergrad Understand Mass Spectrometers: Separation and Analyzing
  • wiccabean21
  • · Replies 1 ·
Replies
1
High School What is the smallest switching time of a transistor ? :confused:
  • Ali Inam
  • · Replies 7 ·
Replies
7
Graduate End correction of the pipe mouth(standing wave)
  • EHT
  • · Replies 4 ·
Replies
4
High School Highest one could suck a drink up this straw?
  • ricky882
  • · Replies 3 ·
Replies
3
Graduate Sinusoidal wave traveling along a composite string
  • golnat
  • · Replies 2 ·
Replies
2
Undergrad Mohr circle for 3dimensional stress state
  • chandran
  • · Replies 10 ·
Replies
10
Graduate I'd like to see your point of view
  • krtica
  • · Replies 1 ·
Replies
1
Graduate References for non-vacuum dispersion relations
  • DrFaustus
  • · Replies 1 ·
Replies
1
High School Transverse Waves: Why They Can't Travel Through Liquids
  • rahuldg11
  • · Replies 3 ·
Replies
3
Undergrad How Does the Inverse Square Law Affect Communication with Distant Spacecraft?
  • Spakfilla
  • · Replies 2 ·
Replies
2