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.

Mechanics

I Is calling fictitious forces "not real" just about terminology?

Optics

I How do I stretch a laser from a beam into a sheet?

Thermodynamics

I What thermal cycle would describe the action of a candle carousel?

Electromagnetism

A Reflections at the source point of a transmission line
B Confused about the need for passive sign conventions in sources
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B Boyle's law vs the Venturi effect
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B Blunt force vs cutting force in penetration
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I How air flows through a vacuum cleaner?
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I Can a Lighter Fishing Rod Really Cast Further?
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I Personal COMSOL challenge (EM)
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I Input/output coupling of a cavity
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A Adiabatic Compressible Flow in a Converging Duct
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How does mass influence energy transfer?
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B What does the scalar product of two displacements represent?
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How can I understand valence bond theory and VSEPR theory?
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A Non-quasi-static Air Compression Calculation
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B Understanding Laplace's Correction and the Adiabatic Process
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A Langevin equation - derivative of random force?
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I Wigner's Theorem That All Fields Must Be Tensors
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I Why does the arrangement of the Periodic Table make no sense?
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B Sign problems with vectors, how can we "resolve" this....
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A What are the most important open questions in classical physics?
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B Another doubt I had while reading Feynman Lectures
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I Why does mass matter in Rutherford's experiment?
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I Why is the black body spectrum bell shaped if it's absorptance is equal to 1?
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B Reaching the Speed of Light: A Thought Experiment on Halving Distance Traveled
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I Earth-centered frame with Earth-Sun line fixed
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B Ambiguity when labeling arrows
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I Question about an "exact" distribution function
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B Do fluid oscillation characteristics depend on the viscosity of a fluid?
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B Semantic question about equilibrium
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B Does Godel's Rotating Universe Theory Suggest Time Repeats Itself?
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I Gravitational interaction between three bodies
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B Does a vernier caliper have doubtful figures?
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B Why does Jupiter have a stronger gravitational pull than Earth?
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A When should we use the Langevin equation and when should use Fokker-Planck
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Unraveling Landau's Mechanics: Why is Space Isotropic?
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B Sailboats providing their own wind
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I Sail craft and apparent wind theory
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B Forced Oscillations: Pendulum 1 Driving Neighboring Pendulum
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I How Does Elastic Collision Angle Relate to Mass Ratios?
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I Why Do Fractions Like 2/3 and 3/2 Frequently Appear in Physics Problems?
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A Waveguide Junction TM/TE combination
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B When an object is tossed up from the ground
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I Derivatives of Energy: 2nd Time Rate of Change, Useless in Physics?
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I Calculating fields in the presence of insulators
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I Removing moisture from polyester staples
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B Internal energy in the context of rest energy
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I Holography used in telecommunications
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I Simple case of Gauss' law for gravity
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I Clarification Rq for linear density
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I Using Henry's law to calculate ammonia concentration?
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B Calculus for Beginners: Basics & Examples
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B Combining uncertainties (error propagation)
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B Hydraulic resistor as a constriction in a pipe
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B Why does Sunset look different from Sunrise?
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B Absolute Time, I know its wrong and all but tell me if I got it right
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A Dirichlet and Neumann boundary conditions in cylindrical waveguides
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I Force on a rigid body inside a liquid flow
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I Reynolds Number in Organism-Fluid Interactions
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I Why do Bubbles oscillate sinusoidally?
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B Different Sign Conventions used with Kirchhoff's Law?
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B Why does a spinning top balance better when it is spinning?
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I A rider cornering at maximum g
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B Conservative and Non Conservative Forces
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B How is a Scientific law/theory's accuracy tested?
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B Clarification of Romer's Calculation
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A Irradition to base of cylindric gray gas volume
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B Why Does a Rope Bend? Understanding the Tension and Forces at Play
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I Does the Euler method give a better insight into adiabatic processess?
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B Need someone with some good CAS
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B Kelvin - not the basic, but the derived unit of measurement?
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I EV per Torr*cm -- What does it mean?
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I Solving Adiabatic Process for Two Compartments
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B Reading a Book about Air Sustained Structures....
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B Is there an analytical solution to this equation?
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I What is the derivation of the radial acceleration in Kepler's 1st Law?
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B Resistive force that a nail will have to overcome to penetrate a piece of wood
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B 100sqft wormhole from sea level to outer space?
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B I have a basic question about energy :)
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I Calculating EMF in a Solenoid: Understanding the Relationship of Turns and EMF
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B How does the Gallilean Invariance Puzzle challenge our understanding of motion?
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I Why is this SHM the way it is?
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B Poisson Spot Madness: Laser & Coin Lens Experiment
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B Question about EMF and EEG emission
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B Blocking all type of energies/waves/signals
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B Irreversible expansion of gas against gas
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B Calculations relating to a pneumatic launcher
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B Coriolis problem - Point mass movement upon release from Earth
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I What does it mean to say space and time are fundamental in physics?
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I Building a solar system simulator
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I What are the real-world applications of convection?
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I Question about Waves -- What does "Elongation" refer to?
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I Palmgren-Miner equation derivation
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B Gravity on the surface of hollow spheres
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Defining the Centroid, Centre of Mass, Centre of Gravity for 2D/3Dshapes
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I Question about a u-tube manometer with different diameters
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B Good equation for calculating RPM of a wheel?
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I Resonance gets sharper just by increasing the resonance freq, why?
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I How does my book get ##\frac{1}{2}## by this derivation?
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B Why are Biological Materials easily broken despite being very strong?
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A Use of the Stefan Boltzmann Law in a Non Equilibrium system?
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I Measuring the force between air molecules
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B Uncovering the Complexities of Streamlined and Steady Flow in Fluid Dynamics
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