Classical Physics Forum

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

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Undergrad History of brachistochrone and catenary

  • zwierz
  • · Replies 1 ·
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1

Undergrad What is the significance of bandwidth in hydraulic transmission lines?

  • CyberneticsInside
  • · Replies 8 ·
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8

High School Why does end correction in pipes change with radius

  • Tyrone Sawyer
  • · Replies 1 ·
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1

Undergrad How many degrees of freedom does a swan's neck have

  • mani m
  • · Replies 9 ·
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9

Undergrad How does laminar jet flow develop?

  • member 428835
  • · Replies 4 ·
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4

High School Walter Lewin videos -- why ± 0.5 cm uncertainty why not ± 0.1?

  • benny91xp
  • · Replies 3 ·
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3

High School How Can You Reattach Broken Glasses Without Reheating the Atoms?

  • Blue Scallop
  • · Replies 2 ·
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High School How to specify direction in 3 dimensional world

  • donaldparida
  • · Replies 2 ·
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2

High School Hammer / feather moon drop clip

  • houlahound
  • · Replies 5 ·
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5

Undergrad Dissolved gas concentration in undersaturated liquid column

  • MarkBurg
  • · Replies 7 ·
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7

Undergrad Thin film around circle and ignoring curvature

  • member 428835
  • · Replies 6 ·
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6

Undergrad Measurement precision question

  • calinvass
  • · Replies 3 ·
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3

Undergrad Streamlines around a sphere (qualitative)

  • member 428835
  • · Replies 6 ·
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6

High School Some questions about terminology

  • AndyCh
  • · Replies 6 ·
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6

Undergrad Why Does a Fluid Jet Become Unstable at Wavelengths Exceeding Its Perimeter?

  • larsa
  • · Replies 1 ·
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1

Undergrad What is the significance of calculating the average value of cos?

  • srhelfrich
  • · Replies 6 ·
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6

Undergrad Original references for Hertz's experiments

  • qnach
  • · Replies 4 ·
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4

Undergrad Quick brainteaser - Unknown objects and liquid volume/height

  • rwooduk
  • · Replies 8 ·
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8

Undergrad Can a Non-Conductor Function as an Antenna for 1 cm Waves?

  • qnach
  • · Replies 23 ·
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23

Graduate Can someone explain this plot of the Orr Sommerfeld equation?

  • Navier-Stokes
  • · Replies 1 ·
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1

High School Is energy transferred as a wave or particle in classical physics?

  • Naman Jain Kota
  • · Replies 4 ·
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4

Graduate Viscous fluid in granular material (DAPL)

  • jman31415
  • · Replies 2 ·
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2

Undergrad Shrunk and thrown into a blender

  • tommy01
  • · Replies 11 ·
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11

Undergrad Equal a priori probability and phase space distribution

  • Getterdog
  • · Replies 10 ·
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10

Undergrad How Do You Calculate Error with a Single Measurement in Physics Lab Reports?

  • Derik
  • · Replies 5 ·
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5

Undergrad Gravitational force at the Earth's centre

  • Grahame1
  • · Replies 4 ·
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4

High School Clear definition of microgravity?

  • Logerah
  • · Replies 1 ·
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1

Graduate Stream functions and flow around sphere/cylinder

  • member 428835
  • · Replies 2 ·
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2

Graduate Head Injury at Swimming Pool: Are Pool Tiles at Risk?

  • meni2222
  • · Replies 1 ·
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1

High School Difference between note, tone and mode

  • donaldparida
  • · Replies 4 ·
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4

Undergrad Why do rubber boots get stuck in deep mud?

  • Lightsyn
  • · Replies 3 ·
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3

High School Explaining vectors and scalars with coordinate invariance

  • Frank Castle
  • · Replies 11 ·
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11

Undergrad Are there always multiple copies of you walking just beside you?

  • Happiness
  • · Replies 3 ·
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3

Undergrad Can two opposing vacuum exhausts create a vortex between them?

  • Keith_McClary
  • · Replies 12 ·
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12

Undergrad So is all energy a function of one of the 4 forces?

  • ebos
  • · Replies 2 ·
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2

High School Struggling to understand a consequence of Pascal's priciple

  • Johnls
  • · Replies 20 ·
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20

Graduate Deriving the Young-Laplace equation from surface energy and work

  • member 428835
  • · Replies 1 ·
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1

Undergrad Where to learn the mathematical tricks in Morin's problems

  • RubinLicht
  • · Replies 4 ·
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4

Undergrad What is “normal” about normal frequencies and normal modes?

  • AntonPannekoek
  • · Replies 4 ·
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4

High School I don't understand how this was manipulated

  • Saippo
  • · Replies 1 ·
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1

Undergrad Physical Meaning of complex wavenumber?

  • snejburg
  • · Replies 2 ·
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2

High School What is this physics classroom object?

  • roger ryan
  • · Replies 9 ·
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9

Undergrad Is a compression pulse always followed by rarefaction in a longitudinal wave?

  • abhinavjeet
  • · Replies 1 ·
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High School Whatever Happened to the Bell V Interferometer for Gravitational Waves?

  • houlahound
  • · Replies 2 ·
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Undergrad Meniscus Formation: Increase Free Surface Area of Water

  • abhinavjeet
  • · Replies 1 ·
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1

Undergrad Why Do Standing Waves Form with Two Free Ends?

  • huyhohoang
  • · Replies 2 ·
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2

High School What is the relationship between the labeling system and resistivity of pencils?

  • houlahound
  • · Replies 9 ·
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9

High School How many joules expended for a push up?

  • wannab
  • · Replies 11 ·
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11

Undergrad Understanding Poiseuille Equation

  • fog37
  • · Replies 1 ·
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1

Graduate Why are vibrations so common in nature?

  • larsa
  • · Replies 13 ·
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13

Undergrad If fields fill all of space, how do they have room to move?

  • Pjpic
  • · Replies 11 ·
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11

Undergrad How can we distinguish classical physics and modern physics?

  • Aafia
  • · Replies 11 ·
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11

Undergrad Does a more energetic particle have to be larger in size?

  • Pjpic
  • · Replies 33 ·
2
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Undergrad Crum's shell effect - visualisation needed

  • rwooduk
  • · Replies 1 ·
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1

Graduate Dye behavior around a rotating cylinder in water

  • Hita
  • · Replies 3 ·
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3

Undergrad What is "making the time integration redundant"?

  • Happiness
  • · Replies 3 ·
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3

Graduate Ondes Planes : Explication et Signification

  • mathben
  • · Replies 2 ·
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2

Insights Frequently Made Errors in Vectors - Elementary Use - Comments

  • haruspex
  • · Replies 2 ·
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2

Undergrad Bubble cavitation - what does a dash mean?

  • rwooduk
  • · Replies 7 ·
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7

Undergrad Simplifying an equation with the same value inside and outside an exponential

  • Amany Gouda
  • · Replies 1 ·
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1

Undergrad Is it possible to suck air out of drilling hole completely?

  • ahmed11
  • · Replies 21 ·
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21

Graduate The Wiedemann Effect: Magnetization Inducing Torsion?

  • vin300
  • · Replies 5 ·
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5

Undergrad Where Does the Energy in a Standing Wave Go?

  • Mr Davis 97
  • · Replies 2 ·
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2

Graduate Landau's Books - Vibration - flexible string

  • diamon76
  • · Replies 1 ·
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1

Graduate Normalization of a pair distribution function

  • Korbid
  • · Replies 2 ·
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2

Undergrad Definitive measurement that determines state of matter?

  • curiousoldguy
  • · Replies 4 ·
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4

Undergrad Area of Ring Element: Puzzling Out dA

  • influx
  • · Replies 4 ·
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4

Graduate Wave Equation for Circular Waves

  • greswd
  • · Replies 8 ·
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8

Graduate Does a cube planet follow Kepler's laws in orbit?

  • james_dear
  • · Replies 18 ·
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18

Undergrad Who Plays Saxophone? - Questions on Resonance Modes

  • Anton Alice
  • · Replies 6 ·
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6

Undergrad How do I determine the exact shape of an airfoil blade for my wind turbine?

  • Frankie.S
  • · Replies 10 ·
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10

Undergrad Why can't vectors be defined by magnitude and direction alone?

  • hokhani
  • · Replies 2 ·
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2

Undergrad When is pressure energy minus gravitational potential energy in fluid dynamics?

  • BobP
  • · Replies 8 ·
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8

Video of guitar strings from inside guitar

  • bcrowell
  • · Replies 4 ·
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4

Graduate Why does spin-spin coupling cause splitting in NMR spectroscopy?

  • BobP
  • · Replies 13 ·
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13

Undergrad Diffusion = sedimentation at 1g?

  • twall11347243
  • · Replies 25 ·
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25

Undergrad Why Does Distance Not Affect Frequency in the Doppler Effect?

  • JeremyG
  • · Replies 3 ·
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3

Undergrad Location and intensity prediction of wave energy

  • OTed
  • · Replies 4 ·
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4

Undergrad How do you calculate a thickness dependant impedance to a so

  • rwooduk
  • · Replies 4 ·
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4

Graduate Is a line observable(in real life)?

  • hackhard
  • · Replies 5 ·
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5

Graduate Can vacuum store potential energy and drive universal expansion?

  • Docak
  • · Replies 18 ·
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18

Graduate How do two stripy k-space images reconstruct a white circle?

  • BobP
  • · Replies 9 ·
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9

Graduate Analytical Exp[((-i Phi)/2)*h3]

  • hemza
  • · Replies 1 ·
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1

High School Can there be an equation for coins?

  • teachmind
  • · Replies 5 ·
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5

High School Is that definition of waves correct?

  • Cliff Hanley
  • · Replies 10 ·
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10

Undergrad What exactly does 'x-vt' mean in the wave equation?

  • Jayxl
  • · Replies 17 ·
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17

Graduate Bifurcation between two oscillations

  • onkel_tuca
  • · Replies 2 ·
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2

Graduate Can MRI Fringe Fields be Mapped in a 3D Space?

  • arashazizi
  • · Replies 10 ·
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10

Undergrad Gas solubility in gas versus liquid

  • rwooduk
  • · Replies 6 ·
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6

Undergrad Calculating Copper Density: Is My Bar Pure?

  • CuriousMister
  • · Replies 3 ·
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3

Graduate What species form when a gas ionizes into plasma?

  • rwooduk
  • · Replies 4 ·
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4

Graduate Face Probabilities of Archimedean Solids

  • Spinalcold
  • · Replies 1 ·
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1

Undergrad Why is the wave equation a second order differential?

  • thegirl
  • · Replies 10 ·
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10

Graduate Harmonic oscillator derivation

  • pabilbado
  • · Replies 2 ·
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2

Undergrad Heads or tails? (Question from Feynman lectures)

  • #neutrino
  • · Replies 4 ·
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4

Graduate Can quantum physics explain the workings of transmitters and receivers?

  • ghost313
  • · Replies 9 ·
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9

High School Phase difference between two points in a stationary wave

  • Janiceleong26
  • · Replies 13 ·
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13

High School Are reversible processes real or only mathematical abstractions?

  • Jimster41
  • · Replies 45 ·
2
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Undergrad Is Propulsion Physics Part of Nuclear Physics?

  • robbie.kpm
  • · Replies 10 ·
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10

High School Is Newton's Concept of Space Still Relevant in Modern Physics?

  • thinkandmull
  • · Replies 4 ·
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4