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

Undergrad Curl of velocity vector in rotational motion

Optics

Undergrad Higher magnification calibration slide

Thermodynamics

Graduate Why is 0 K unattainable?

Electromagnetism

Undergrad Small question about constantly accelerating charges
Undergrad What Causes the Initial Acceleration Phase in Molecular Behavior?
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Undergrad Number of Sig Figures and Precision
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Undergrad Can Magnets Provide Infinite Energy for Weight Training?
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Undergrad Understanding Sound Waves in Fluids: Pressure and Velocity Fields
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Undergrad Electromagnetic effects in the brain
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Undergrad Does gravitational energy travel like electrical energy?
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Undergrad Does dividing maximum frequency by sound frequency give accurate velocity?
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Undergrad What is the Order of Integration in a Double Integral?
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Undergrad Which units is this conversion factor for (molar volume)? 0.023901488
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Undergrad Formula for Doppler effect in moving medium?
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Undergrad Gas molecular attraction in the sense of Newton's law
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Undergrad Converting Units: How to Convert 1.6*10^7 N/cm^2 to kg/cm^2
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Undergrad Physics behind making a mango milk shake
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Undergrad Question about X-ray power emitted by the Coolidge tube
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Undergrad Does high humidity air transfer sound better than dry air?
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Undergrad When is a water surface not dispersive?
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Undergrad An interesting question from Veritasium on YouTube
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Undergrad Acoustic wave properties and momentum
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Undergrad Estimating Vertical Wind Speeds: T_a, T_s, & P_a
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Undergrad Shallow Water Wave Equation Simulation: Reverse Shoaling?
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Undergrad How to deal with these +- values in an equation?
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Undergrad Humming Top Acoustics: Unearthing the Mystery
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Undergrad Surface tension and water (the smallest hole water will flow through)
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Undergrad Sound Frequency & Pipe Wall Thickness
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Undergrad Possibility of PCB Oils in old Diffusion Pumps?
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Undergrad Changing the tone of a wind chime using slits or cuts
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Undergrad Can ground albedo near a highway refract noise upward?
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Undergrad Projector location in Cinema Theater
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Undergrad Open channel flow: derive function for energy slope on friction?
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Undergrad Maximizing Compound Bow Power: The Role of Longer Limbs Explained
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Undergrad Uncertainty in measurements of the thickness of a pile of pellets
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Undergrad Conversion factors derivation.
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Undergrad Calculating an increasing angle in Spherical Coordinates for a curve
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Undergrad Can Graphite Sheets Replace Carbon-Loaded Teflon in Millimeter Wave Dosimeters?
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Undergrad Geometric Interpretation of Turbulence
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Undergrad General physics question -- How can massless photons have momentum?
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Undergrad Explain how soil is not frozen after 3 weeks of below freezing weather
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Undergrad Second Tonga shockwave - why a drop in the pressure?
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Undergrad Equivalent formula for a Sound wave in a medium like an EM wave
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Undergrad Resonant Frequency Formula for a given object
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Undergrad Help Designing a Resonance Box for Tuning Forks
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Undergrad What Specifications Are Needed for a Plasma Device Power Supply?
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Undergrad What is the orgin of Gauss' law?
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Undergrad Classical particle in a Penning trap
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Undergrad What Are the Uncommon Coordinate Systems in Physics Beyond the Basics?
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Undergrad Color Theory - What does blue + yellow make?
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Undergrad What is the role of frequency in music?
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Undergrad How is the popular estimate of the Earth's atmospheric mass correct?
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Undergrad Micro Sound Waves: Can 1 Hear What Only Another Can?
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Undergrad Sound and apparent wind -- Any Doppler effect?
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Undergrad Are Newton's Laws of physics compatible with thermodynamics?
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Undergrad How does sound reflect from an interface at an angle?
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Undergrad How Does Surface Tension Balance Small Objects on Water Surface?
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Undergrad Du Nouy Method for Measurement of Surface Tension
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Undergrad Can We See the Moon From 238,900 Miles Away?
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Undergrad Escape of Hydrogen from the Earth's Atmosphere
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Undergrad Behavior of a curved 2D sheet and a curved 1D wire under acoustic wave
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Undergrad Phase Speed of Wave in non-relativistic Doppler Shift Derivation
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Undergrad How does the Lota Bowl water experiment work?
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Undergrad Solving for ##\theta## in a Trigonometric Equation
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Undergrad Can Spider Silk Conduct Electricity?
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Undergrad If I clap once to a wall, and then walk forward, will I hear an echo?
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Undergrad Are Peak Moment and Peak Torque Equivalents in Biodex Dynamometry Measurements?
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Undergrad Water Waves Over Obstacles: Higher Frequencies Grow, Not Decay
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Undergrad What Keeps Water in a Straw When It's Removed from a Glass?
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Undergrad Fluid Viscosity & Viscous Friction Between Plates
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Undergrad Does a field affect the originating entity?
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Undergrad What would it take to eliminate leap years?
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Undergrad Catching Space Debris: Chameleon-Inspired Capture System
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Undergrad The dramatic difference between wet and dry sphere splashes
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Undergrad Amount of Noise extinction in Acrylic glass per thickness in mm
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Undergrad Is physics of living matter an undiscovered territory?
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Undergrad How to ensure an equation is dimensionless when it includes "Debye"
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Undergrad How does a standing wave form?
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Undergrad Graduation of air flow inside a vacuum chamber
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Undergrad Frost on roof window melts in lines
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Undergrad Multiplying Uncertainties in Different Units
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Undergrad Longitudinal waves on a string
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Undergrad The kilogram and Planck’s constant
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Undergrad How to stay warm lost in the wilderness in winter?
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Undergrad The world from a bat's perspective (sonic images)
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Undergrad Where Can I Find Germanium PIN Photodiodes for Sale?
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Undergrad Why is it claimed that Betz's limit is a law?
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Undergrad Units of trigonometric functions?
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Undergrad What is the integral of energy?
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Undergrad Error analysis: simple but confusing matter
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Undergrad Why does energy travel in waves?
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Undergrad Coexistence of Solid and Liquid Matter: Conditions for Existing One Phase?
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Undergrad Air density with a significantly higher sea level
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Undergrad Liquid soap pulsing as it's drawn into a syringe
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Undergrad What are the applications of dimensional analysis and why does it work?
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Undergrad Vibrations of waves with pinned vs free boundary conditions
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Undergrad Child's experiment to weigh air
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Undergrad Are there waves that go up and down without going below zero displacement?
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Undergrad New insights in penguin physics
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Undergrad A real life problem with plumbing at my house
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Undergrad The total energy stored in a battery (theory/formula)
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Undergrad Why volume is conserved but not the surface area?
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Undergrad Blowing Bubbles in Space: Can You Create a Giant Bubble in the Vacuum of Space?
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Undergrad Solve the Mystery of the Alarm Signal: Duncan's Story
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