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.

Mechanics

Undergrad Motorized top with internal unbalanced flywheel

Optics

High School Volumetric Holographic Displays

Thermodynamics

High School Using battery energy to heat a battery…

Electromagnetism

Undergrad Colors in a plasma globe
Graduate Calculating Force for Imprinting Photoresist with a Stamp
  • · Replies 4 ·
Replies
4
Views
3K
High School What factors determine the maximum length of a snorkel?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Could Gravity Change at Near Absolute Zero?
  • · Replies 9 ·
Replies
9
Views
4K
High School Pink Floyd + Helium: What Would the Sound Be?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why doesn't gravity violate LoCE?
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Automobile batteries and internal resistesnce
  • · Replies 1 ·
Replies
1
Views
2K
High School Why is copper wire not commonly used in potentiometers?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Roofing felt bubbled up because of cold weather?
  • · Replies 18 ·
Replies
18
Views
14K
Undergrad Diffusion Coefficient of CO2 in Air - Raymond
  • · Replies 1 ·
Replies
1
Views
6K
Graduate Computing cone equation using data points
  • · Replies 3 ·
Replies
3
Views
7K
Graduate What is the definition of correlation and coupling?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Valves: Principles & Operation of Heart & Reed Valves
  • · Replies 8 ·
Replies
8
Views
4K
High School Unveiling the Mystery Behind White Ice
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Comparison of attraction/repulsion measures
  • · Replies 3 ·
Replies
3
Views
2K
High School Are There Any TV Shows or Movies with Outrageous Physics?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why Does the Pitch Change When Tapping a Spoon in a Cup of Spinning Coffee?
  • · Replies 10 ·
Replies
10
Views
6K
High School Can anyonewe suggest an extended essay project for me in physics
  • · Replies 2 ·
Replies
2
Views
8K
How Important Is Posting in the Correct Online Forum?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Creating Wrong Answers for a Question Paper
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad The geometric center of the Earth and the center of mass
  • · Replies 9 ·
Replies
9
Views
13K
High School Convert Mol/L to kg/m3: Step-by-Step Guide
  • · Replies 3 ·
Replies
3
Views
47K
Thane Heins and his free energy machine
  • · Replies 1 ·
Replies
1
Views
7K
Undergrad The Fall of Classical Physics: From Newton to Einstein
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Difference between CM and QM
  • · Replies 14 ·
Replies
14
Views
6K
Undergrad What does the term Action means in physics?
  • · Replies 9 ·
Replies
9
Views
3K
High School How can I protect an egg from cracking with limited materials?
  • · Replies 6 ·
Replies
6
Views
16K
Graduate Will a superconducting dynamo in space produce free energy?
  • · Replies 19 ·
Replies
19
Views
9K
Undergrad Calculating Calories Used Running
  • · Replies 6 ·
Replies
6
Views
25K
High School Litteraure about Waves and Oscillation
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Speed of Sound vs Light - Possible?
  • · Replies 11 ·
Replies
11
Views
3K
High School Did Pascal Conduct the Barrel Experiment?
  • · Replies 2 ·
Replies
2
Views
5K
High School Um, first of all, why was my post locked? all i wanted was to know how
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Speed of Spherical Waves: How Fast is v?
  • · Replies 10 ·
Replies
10
Views
4K
Undergrad Gravity: Is Matter Mostly Empty Space?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate How can Green's function be used to calculate charge density of states?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Helium diffusion through metals
  • · Replies 1 ·
Replies
1
Views
6K
Understanding the Meaning of Pull? and Push? in a Picture
  • · Replies 1 ·
Replies
1
Views
3K
High School Trying to understand absolute uncertainties in geometric shapes
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Why are the calculated energies for two oscillating waves not equal?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Understanding Green's Theorem: An Overview
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Lissajous Figures Applications
  • · Replies 4 ·
Replies
4
Views
24K
Graduate Spontaneous wavefronts in a flat flow
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Topics re harmonic oscillators
  • · Replies 2 ·
Replies
2
Views
2K
Gravity is negative for example (-0.1)
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How Do Mechanical and Electromagnetic Waves Propagate?
  • · Replies 12 ·
Replies
12
Views
4K
Graduate Can Math Help Predict Binding Energies in Enzymology and Crystallography?
  • · Replies 15 ·
Replies
15
Views
5K
Undergrad Speed of Sound in Materials: Impact on "Vaporization" Gun
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Understanding the Mean Value Theorem for Differentiation
  • · Replies 7 ·
Replies
7
Views
5K
Help Finding Book: An Introduction to Mechanics by Daniel Kleppner
  • · Replies 1 ·
Replies
1
Views
2K
High School Weight of a Fully Charged vs Discharged Battery
  • · Replies 10 ·
Replies
10
Views
4K
Graduate Using Euler's equations to model ocean waves
  • · Replies 1 ·
Replies
1
Views
3K
High School Looking for pipe flow information in cubic feet per minute.
  • · Replies 2 ·
Replies
2
Views
10K
Undergrad Making an Informed Decision on Physics Engines for Games
  • · Replies 21 ·
Replies
21
Views
6K
Undergrad Form of the solution of wave equation
  • · Replies 2 ·
Replies
2
Views
4K
High School Where Can I Learn About Vectors Online?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Where Does the Energy Go in Noise Cancellation and Sound Wave Interference?
  • · Replies 13 ·
Replies
13
Views
9K
Graduate Gravitational Intensity on Thin Spherical Shell: Is it Ethical?
  • · Replies 10 ·
Replies
10
Views
3K
High School Experiment involving Coke and PC Cola
  • · Replies 6 ·
Replies
6
Views
5K
Undergrad The Growth of Potholes: Understanding Their Nature and How to Repair Them
  • · Replies 3 ·
Replies
3
Views
2K
Thawing Frozen Meat: The Fur vs. Water Method
  • · Replies 12 ·
Replies
12
Views
4K
Undergrad What is the Best Lab Apparatus for Measuring Volume of Irregular Objects?
  • · Replies 3 ·
Replies
3
Views
10K
Graduate Kinetic Energy: T or K in Mechanics/QM?
  • · Replies 3 ·
Replies
3
Views
2K
High School Can Gasoline Help Cool Air? A Theory and Discussion
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Discovering Ceres: Gauss and the Least Square Approach
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Please help with this paragraph of the article, i dont understand
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad What Would Happen if the Earth Was Flat and There Was No Gravity?
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Condition of a vector field F being conservative is curl F = 0,
  • · Replies 8 ·
Replies
8
Views
9K
Undergrad Could Tesla's Wardenclyffe Tower Have Revolutionized Wireless Energy Transfer?
  • · Replies 5 ·
Replies
5
Views
25K
Graduate Why Is the Source Term Crucial in Differential Equations?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the difference between nonlinearity and chaos, or..
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Time invarient pdf but nonstationary process
  • · Replies 4 ·
Replies
4
Views
2K
High School What is the true definition of energy in physics?
  • · Replies 19 ·
Replies
19
Views
6K
High School What does quantities and dimensions mean?
  • · Replies 5 ·
Replies
5
Views
8K
Undergrad What Is the Phenomenon of a Frozen Wave in Physics Labs?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate How Does Anhedral Rigging Enhance Sailboat Performance?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Ferrofluids, gravity, Pascal and Arquimedes.
  • · Replies 10 ·
Replies
10
Views
5K
Undergrad Do Computer Icons Follow Classical or Quantum Physics?
  • · Replies 33 ·
2
Replies
33
Views
11K
Undergrad Create Standing Waves with Antinodes at the Ends
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Are There Alternatives to Mass Spectrometry for Measuring Charged Particles?
  • · Replies 1 ·
Replies
1
Views
2K
High School What Creates a Stronger Vacuum: 15inHG or 10inHG?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Solve Wave Equation with D'Alembert's Solution
  • · Replies 9 ·
Replies
9
Views
4K
High School Logitudinal and Transverse wave
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Why are Kramers-Kroning relations useful?
  • · Replies 7 ·
Replies
7
Views
7K
Graduate What is the origin of the reciprocity theorem in optics?
  • · Replies 10 ·
Replies
10
Views
8K
Undergrad Stress-strain relation material property
  • · Replies 11 ·
Replies
11
Views
8K
High School Understanding the Importance of Constants in Proportional Formulas
  • · Replies 4 ·
Replies
4
Views
2K
Make a Relaxing Electric Current Device at Home
  • · Replies 7 ·
Replies
7
Views
14K
Undergrad Calculus-integration over mass
  • · Replies 3 ·
Replies
3
Views
8K
Undergrad What Is the Role of Ions in Human Electric Conduction During a Shock?
  • · Replies 4 ·
Replies
4
Views
6K
Coffee Grains Mysteriously Moving: A Puzzling Sight
  • · Replies 2 ·
Replies
2
Views
3K
New Theory on why tornadoes occur.
  • · Replies 2 ·
Replies
2
Views
7K
Graduate Can a Debye Layer Form in Air?
  • · Replies 2 ·
Replies
2
Views
7K
High School Why doesn't the sky crush us all?
  • · Replies 31 ·
2
Replies
31
Views
10K
Graduate What Does Comoving Time Rate of Change Mean?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Is information a physical quantity?
  • · Replies 12 ·
Replies
12
Views
6K
High School Questions about classsical physics units.
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Flexural Waves: Kelvin-Voigt Solid Questions
  • · Replies 6 ·
Replies
6
Views
6K
Undergrad Unravelling the Concept of Mass
  • · Replies 32 ·
2
Replies
32
Views
5K
Graduate Finding an expression for dissonance
  • · Replies 4 ·
Replies
4
Views
3K
High School What is path length difference?
  • · Replies 2 ·
Replies
2
Views
20K