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

High School Question about the color of a thin film

Thermodynamics

Graduate Why is 0 K unattainable?

Electromagnetism

Graduate Practical demo - Ferromagnetic attraction at interpole boundary
Undergrad How many carriers for phased array?
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Undergrad First law of this universe
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Undergrad Capacitor Voltages at t = 0: Zero or Split?
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High School How can one relate jerk and force?
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Graduate Does a moving particle count as a wave?
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Undergrad Understanding the Coriolis force
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Graduate Heat generation under shock waves
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Graduate How is literally EVERYTHING in physics not binary?
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Undergrad Why is water pressure increased in a plastic bag in a bucket?
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Undergrad DH Mt Bike - Optimizing Drop Landing Ramp Profile
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Undergrad What is the proof of the Σqᵢcosθᵢ = constant theorem for colinear charges?
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Graduate Linearization of the Navier–Stokes equations for real airflow conditions
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High School Rubber band: More or less force to stretch at the beginning?
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Undergrad Exploring the possibilities of storing electricity from lightning
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Undergrad Different result with kinetic energy and momentum when a bullet hits a target
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Undergrad Measured Spectrum of Stopped Wood Organ Pipe Shows ALL Overtones
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Undergrad Pumping liquid around and draining a part of it, how much is lost?
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High School An apparent contradiction between Fleming's rules
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High School Is it safe to fly in a spinning hollow asteroid?
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Undergrad Velocity of a free particle using Landau's approach
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Undergrad What physics study path would help me answer my own hydraulics question?
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High School Bubbles in Space
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Undergrad Potential energy of a system of particles
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High School The world is not enough
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Undergrad Extreme Negative Polarization (peer reviewed Astrophysical Journal)
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Undergrad Why is thermal energy treated differently than other kinds of energy?
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High School Internal energy and gravitation
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Graduate How can a 1 kilometer body (3i/Atlas) flip 180 degrees suddenly?
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Undergrad The missing 3D magnetism theory
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Graduate How to compute the path 3i/Atlas will take when it passes near Jupiter?
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Undergrad Is a half submerged object submerged in its own displaced water?
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Undergrad Problems with Blum's Karate Article
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Undergrad 20 Megapascals of negative pressure... What? Please explain
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High School How much lower would a sheep be expected to jump if on a steep upward slope?
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High School Fan is pushing in the front and sucking from the back
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High School Automobile Does Front Flip
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Undergrad What is the pressure of trapped air inside this tube?
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Graduate Static Electricity foam balls
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High School Which technique has been used? (drowning victim recovery in a lake)
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Undergrad What areas of maths and physics do I need to understand explosion physics?
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Undergrad Confusion about derivation of equation in Gregory
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High School 'splain this hydrostatic paradox in tiny words
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Undergrad Explain Bernoulli at the molecular level?
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Graduate Advice for 100 MHz resonator
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High School What qualities does time have other than linearity, motion, and speed?
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High School Ultrasonic wave and regular sound wave
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High School Use Surface-Volume to approximate gravity for planets and protons
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Undergrad What does the Lattice Boltzmann Equation actually say?
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High School Slow Motion Appearance of Flags: Fluid Dynamics or Perceptual Illusion?
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High School Symbol for temperature on the Fahrenheit scale
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Undergrad Are 1D Longitudinal Waves Reflected at an Open End?
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High School How Did Scientists Develop and Validate the Atomic Model?
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Undergrad Focusing sound waves from the environment
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High School Conservation of energy demo -- An upgrade to the standard version
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High School Why do things burn up in the atmosphere but not in the ocean?
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Undergrad A Mathematica code to plot two functions on the same screen
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Undergrad Need help for ultrasonitc atomizer (transducer)
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Undergrad Standing Waves by Reflection: Losses of the Reflected Wave
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Undergrad Pulse bouncing off ends of a tube, expressed as sum of sine modes?
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High School Power from global loop power cable ?
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Undergrad Bouncing sound pulse in cylinder, driving vibrations in shell
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Undergrad Help me to understand how integrating this function works
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Undergrad Do vocal tract resonances assist a singer's pitch control?
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Undergrad Which radiation between infrared and microwave is more penetrating?
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Undergrad Frequency components that remain fixed when singing a scale
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High School What is the speed of "motion"?
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Undergrad Water column object insertion and energy recapture
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Graduate Hamiltonian formulation of classical mechanics as symplectic manifold
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Undergrad Singing Crystal Wineglass -- Does the wine mass determine the pitch?
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Undergrad Why is the Cross Product Used in Mathematics? Understanding its Role and History
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Undergrad Wave motion and a stretched string
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High School Simulate an altitude at 16000-18000 feet with water depth
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Undergrad Calculating Watt Hours for a time interval less than 1 second
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Undergrad How is the mass of the Earth or the Sun measured?
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High School Is this equation at all sensical?
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Undergrad Some questions regarding Acoustic wave reflection
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Undergrad How does pi in physics relate to circular motion and waves?
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High School Tangential Velocity (maybe)
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High School Can Ionic Compounds conduct electricity in a gaseous state?
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Undergrad What happens to X-rays if they do not meet Bragg's law?
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High School Confusion about Wave Motion
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Undergrad Regarding noise propagation
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Undergrad Gravity at Earth's poles vs equator
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Undergrad Does a component of a vector have components?
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Undergrad Sealing vacuum chamber holes air tight
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Undergrad Why is saxophone growling produced by modulation of the sound waves?
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High School My head spins when I think about time
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High School If the source of the pressure distribution around a lifting airfoil is known, why is not explained in textbooks?
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Graduate Electron drift velocity in a gas discharge
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High School Can sound travel through clay?
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Undergrad Gas Pressures and the Resistance of Materials (Biodigester Generates Methane)
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Undergrad Fluorescent lamps And Fan remote
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High School Is an ellipsoid the best shape for a BBQ?
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Undergrad Claude Naiver work on Navier-Stokes equations
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Undergrad What is Surface Plasmon Resonance?
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Undergrad What are the properties of a Sound Pressure Wave going down into a Cone?
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Undergrad Using a tuning fork vs computer tuner for violin
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High School Sound Intensity doubles if number of noise sources double?
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Undergrad Could vibration carry electricity or something else?
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High School What Causes the Void Formation in Discarded Yogurt During Disposal?
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