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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High School Hydrodynamics Effects: Are They the Same?
- dom_quixote
- · Replies 3 ·
Undergrad Don't Ever Mention "Centrifugal Force" to Physicists
- Argonaut
- · Replies 121 ·
Undergrad What is the best way to shield / jam ultrasound?
- michael93
- · Replies 8 ·
Undergrad Relationship between the Different Frequency vs Decibel Graph Peaks
- Darmstadtium
- · Replies 3 ·
High School Atmospheric pressure, vacuum, etc.
- tomlib
- · Replies 9 ·
Undergrad The effect of temperature on the damping of a guitar string
- SamuuLau
- · Replies 1 ·
Graduate How can a Helmholtz resonator both attenuate and amplify sound?
- DrChef
- · Replies 12 ·
High School Why is there so much multplication in physics?
- dainceptionman_02
- · Replies 29 ·
High School Does a vacuum ejector with lower supply pressure produce less suction?
- nicolas1409
- · Replies 6 ·
High School Energy needed to stop the Earth's inner core ---and its effects?
- xpell
- · Replies 5 ·
High School Questions about Knudsen flow for a fluid experiment
- Chain Shawn
- · Replies 4 ·
High School How to calculate measurement error by using other quantities?
- Lotto
- · Replies 6 ·
Graduate Hydrodynamic stability- Rayleigh equation - Couette flow
- URIA
- · Replies 5 ·
Graduate Is Orbital Velocity the Same as RMS of Eddy Velocities in Turbulent Flow?
- rdemyan
- · Replies 1 ·
Graduate How Does Anisotropy Affect the Calculation of Taylor Microscale in Turbulence?
- rdemyan
- · Replies 1 ·
Graduate Equations of State in Modern Classical Physics (Thorne/Blandford)
- RobertDSmeets
- · Replies 7 ·
High School How to describe complicated dimensions?
- NODARman
- · Replies 7 ·
High School Units in exponentials and logarithms
- mixj
- · Replies 10 ·
Undergrad How is the damping of sound (over distance) affected by air properties?
- daanisrael
- · Replies 8 ·
High School Physical meaning of mass divided by velocity squared
- simplemind
- · Replies 9 ·
Undergrad Method for experimental results analysis
- miraboreasu
- · Replies 4 ·
High School If I double sound on my PC, how would the sound intensity increase?
- Lotto
- · Replies 10 ·
High School How to calculate a random measurement error?
- Lotto
- · Replies 3 ·
Undergrad Why is there no frost below a certain temperature?
- gary350
- · Replies 4 ·
Undergrad Why is length considered a fundamental (base) quantity?
- Ahsan Khan
- · Replies 38 ·
High School How does a bathtub/shower diverter valve work?
- barryj
- · Replies 8 ·
High School Causation: substance or event?
- sayetsu
- · Replies 4 ·
Undergrad Resonant frequency in damped oscillations: f or ω
- sinus
- · Replies 4 ·
Undergrad Difference between two percentage uncertainty equations
- homeworkhelpls
- · Replies 7 ·
Undergrad About Bernoulli's equation for fluid flow
- samy4408
- · Replies 6 ·
High School Doppler effect when source and observer move at an angle
- abdossamad2003
- · Replies 1 ·
Undergrad I found 2 formulas about surface tension -- which one is correct?
- samy4408
- · Replies 3 ·
High School Can deductive arguments be sound if observations may be flawed
- Chenkel
- · Replies 34 ·
High School Why do air bubbles in water suddenly merge when they get close?
- Hornbein
- · Replies 14 ·
Undergrad Why doesn't wood have high elasticity if it resists volume change?
- samy4408
- · Replies 2 ·
Undergrad Brownian motion of charged particles?
- Suekdccia
- · Replies 8 ·
Graduate Can skeletal models and physics explain pain perception?
- Grn_Model_Maker
- · Replies 2 ·
Undergrad What Causes the Initial Acceleration Phase in Molecular Behavior?
- ndvcxk123
- · Replies 7 ·
High School Why doesn't helium have any effect on the sound of my voice?
- Vincentjacobprice
- · Replies 27 ·
High School How and why can multiplication combine physical quantities?
- Haris045
- · Replies 8 ·
Undergrad Number of Sig Figures and Precision
- fog37
- · Replies 20 ·
Undergrad Can Magnets Provide Infinite Energy for Weight Training?
- yungman
- · Replies 16 ·
Undergrad Do pressure and velocity both satisfy the wave equation in sound waves?
- Delta2
- · Replies 6 ·
Undergrad Electromagnetic effects in the brain
- Arceus
- · Replies 1 ·
Undergrad Does gravitational energy travel like electrical energy?
- Orthoceras
- · Replies 1 ·
Undergrad Can you find velocity by dividing maximum frequency by transmitter frequency?
- Chenkel
- · Replies 17 ·
Undergrad What is the Order of Integration in a Double Integral?
- Chenkel
- · Replies 7 ·
High School Swimming at the same Reynolds number as sperm
- ergospherical
- · Replies 1 ·
Graduate Why do we assume harmonic time dependence in wave equation solutions?
- Enjolras1789
- · Replies 2 ·
High School A flip of the Earth on its axis
- arydberg
- · Replies 32 ·
Undergrad What units does the conversion factor 0.023901488 represent?
- bumblebee77
- · Replies 16 ·
Undergrad Formula for Doppler effect in moving medium?
- xxxyyy
- · Replies 16 ·
Undergrad Gas molecular attraction in the sense of Newton's law
- Bernadette
- · Replies 4 ·
High School Why is sea surface water relatively constant?
- jaumzaum
- · Replies 3 ·
Undergrad Converting N/cm² to kg/cm² with correct unit factors
- kasnay
- · Replies 13 ·
Undergrad Physics behind making a mango milk shake
- starpower1824
- · Replies 2 ·
Undergrad Energy spectrum equation for Coolidge tube X-ray emission
- samy4408
- · Replies 2 ·
High School Artificial gravity rotating on two axes
- DaveC426913
- · Replies 76 ·
Undergrad Does high humidity air transfer sound better than dry air?
- gary350
- · Replies 1 ·
Undergrad When is a water surface not dispersive?
- Daniel Petka
- · Replies 1 ·
Undergrad An interesting question from Veritasium on YouTube
- Swamp Thing
- · Replies 151 ·
Undergrad Acoustic wave properties and momentum
- mohamed_a
- · Replies 8 ·
Graduate Resonant frequencies of liquid in a cylinder
- member 428835
- · Replies 14 ·
Graduate Brownian Motion (Langevin equation) correlation function
- Tim667
- · Replies 2 ·
Undergrad Estimating Vertical Wind Speeds: T_a, T_s, & P_a
- jones1234
- · Replies 2 ·
Undergrad Shallow Water Wave Equation Simulation: Reverse Shoaling?
- person123
- · Replies 1 ·
Undergrad How to deal with these +- values in an equation?
- Martyn Arthur
- · Replies 9 ·
High School Does there exist a metal that is 100% unrustable?
- LightningInAJar
- · Replies 11 ·
Undergrad How do humming tops produce multiple tones from side holes?
- Anachronist
- · Replies 4 ·
Undergrad Surface tension and water (the smallest hole water will flow through)
- LT72884
- · Replies 1 ·
Undergrad Why does thicker stainless steel pipe produce higher frequency?
- Daimion
- · Replies 5 ·
Undergrad Possibility of PCB Oils in old Diffusion Pumps?
- jasonlee112
- · Replies 11 ·
High School Fundamental Units and Supplementary Units — What are the differences?
- Mr X
- · Replies 28 ·
Undergrad Changing the tone of a wind chime using slits or cuts
- twincam
- · Replies 8 ·
High School How to explain weight gain to students when mass is conserved
- Darrencc
- · Replies 21 ·
Undergrad Can ground albedo near a highway refract noise upward?
- Mike S.
- · Replies 14 ·
Undergrad Projector location in Cinema Theater
- akerkarprashant
- · Replies 2 ·
Undergrad Open channel flow: derive function for energy slope on friction?
- MrS
- · Replies 1 ·
Undergrad Do longer limbs make a compound bow more powerful?
- kingofjong
- · Replies 1 ·
Undergrad Uncertainty in measurements of the thickness of a pile of pellets
- nuclearsneke
- · Replies 3 ·
High School Standing wave definition: is fixed displacement only at antinodes?
- kasheee
- · Replies 19 ·
Undergrad Conversion factors derivation.
- akerkarprashant
- · Replies 1 ·
High School Stability of Droplet Climbing on a Needle with Varying Contact Angle
- chingel
- · Replies 2 ·
Graduate Calculating the mechanical index of applied ultrasound
- rwooduk
- · Replies 4 ·
Undergrad Calculating an increasing angle in Spherical Coordinates for a curve
- Peter-
- · Replies 21 ·
Undergrad Can Graphite Sheets Replace Carbon-Loaded Teflon in Millimeter Wave Dosimeters?
- cuallito
- · Replies 1 ·
Graduate Is Betz law applicable to submerged hydrokinetic turbines?
- aladinlamp
- · Replies 9 ·
Undergrad Geometric Interpretation of Turbulence
- George444fg
- · Replies 13 ·
Undergrad General physics question -- How can massless photons have momentum?
- spacecadet11
- · Replies 9 ·
Undergrad Explain how soil is not frozen after 3 weeks of below freezing weather
- gary350
- · Replies 15 ·
Undergrad Second Tonga shockwave - why a drop in the pressure?
- Borek
- · Replies 47 ·
High School Why do all physical quantities fit the vector or scalar framework?
- JackFyre
- · Replies 4 ·
Graduate Is aerodynamics still actively researched or largely complete?
- Jurgen M
- · Replies 17 ·
Undergrad Equivalent formula for a Sound wave in a medium like an EM wave
- chowdhury
- · Replies 5 ·
Undergrad Resonant Frequency Formula for a given object
- btb4198
- · Replies 2 ·
Graduate Does gravity affect Brownian Motion?
- dedocta
- · Replies 3 ·
High School What type of wave is described by y'' = -k*y^2
- jaydnul
- · Replies 15 ·
High School White noise frequencies and Audio Speakers
- arivel
- · Replies 25 ·
Undergrad Designing a tuning fork resonance box with variable length
- KedarMhaswade
- · Replies 1 ·
High School Thought experiment (debate with friend)
- Joe seki
- · Replies 9 ·