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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Graduate How Accurate Are Calculated Diffusion Coefficients of H2 and He into Air?
- Clausius2
- · Replies 1 ·
Graduate Will soldering be an effective method for constructing a microwave resonator?
- Spurious J
- · Replies 1 ·
High School What is the volume occupied by a molecule?
- Fabrizio Vassallo
- · Replies 12 ·
Undergrad Why is theta called a vector in spherical coordinates?
- cgreeleybsu
- · Replies 3 ·
Undergrad Do linear AND dispersive waves exist outside of QM?
- LarryS
- · Replies 1 ·
Undergrad The continuity equation and the divergence
- wuwei
- · Replies 3 ·
Undergrad Mathematical Procedure for Obtaining Velocity Profile in Laminar Flow
- Andrea Vironda
- · Replies 8 ·
Insights A New Interpretation of Dr. Walter Lewin's Paradox - Comments
- rude man
- · Replies 64 ·
Undergrad Wave equation and the d'Alembert solution
- Robin04
- · Replies 18 ·
Undergrad How Do I Calculate the Mass of a Planet Using a Simulation?
- Levi Woods
- · Replies 4 ·
Undergrad Are Reynolds Vortices a Real Scientific Phenomenon?
- stockzahn
- · Replies 5 ·
Undergrad Microphones at longer wavelengths than their size?
- The Bill
- · Replies 10 ·
Undergrad Can Mummies Be Used as Fuel for Steam Locomotives?
- Tiger Blood
- · Replies 2 ·
High School Is the Tsiolkovsky Rocket Equation Worth Tattooing?
- Nathan1126
- · Replies 2 ·
Undergrad What is a stochastische dynamische systeme?
- Another
- · Replies 3 ·
Undergrad Rippled surface on lake ends abruptly
- greypilgrim
- · Replies 3 ·
Undergrad What kind of old physics tube is this?
- greypilgrim
- · Replies 4 ·
High School Why does Scotch tape tear lengthwise but packing tape tears sideways?
- JTC
- · Replies 4 ·
High School Frequnncy and 1/t, I don't really understand
- SsagatroNN
- · Replies 2 ·
High School Solar cells - how do they repeat the process?
- Emily0203
- · Replies 3 ·
Undergrad Removing a node in Y-Δ transform
- Conductivity
- · Replies 1 ·
Undergrad One dimensional wave, function of a wave
- Taylor_1989
- · Replies 2 ·
Undergrad How have changes in table tennis racket design affected the game?
- prashantakerkar
- · Replies 8 ·
Undergrad What is the origin of x=e^(rt) in Simple Harmonic Motion?
- velvetmist
- · Replies 5 ·
Undergrad Understanding Waves on a String
- Selfless_Gene
- · Replies 10 ·
High School Why does a Moebius strip twist unevenly along its length?
- Harlan
- · Replies 5 ·
Undergrad Paddle convex and concave sides and forward propulsion
- fog37
- · Replies 1 ·
Undergrad Why does the wave equation describe certain phenomena
- Fibo112
- · Replies 8 ·
High School Energy of a Wave: Amplitude vs Frequency
- Lyakhnitskiy Dmitriy
- · Replies 3 ·
Undergrad Helmholtz resonator with multiple necks--formula?
- EmilioL
- · Replies 10 ·
Undergrad Classical waves and the Doppler shift
- Phys12
- · Replies 5 ·
Undergrad SI definition of second: what day/year is the reference year
- Patrick Aberdeen
- · Replies 3 ·
High School What the equal sign means in physics
- ado sar
- · Replies 34 ·
Undergrad Physical examples of different types of bifurcation
- Jezza
- · Replies 1 ·
Undergrad Effect of impedance changes less than a wavelength
- BOYLANATOR
- · Replies 4 ·
Undergrad Could Different Attractors Explain Variations in Lyapunov Exponents?
- Nono92
- · Replies 1 ·
High School Why Does a New Syringe Have an Open Piston?
- Leodoc
- · Replies 5 ·
Undergrad Liouville operator time dependency
- SchroedingersLion
- · Replies 3 ·
Graduate Modeling and simulating a 2D Turbulent flow
- jamalkoiyess
- · Replies 1 ·
Undergrad When to use which dimensionless number
- member 428835
- · Replies 114 ·
Undergrad Diameter affecting string's impedance
- Senim Silla
- · Replies 1 ·
High School Interval scale -- very basic question
- Vital
- · Replies 3 ·
High School Why do physical quantities with units follow different arithmetic rules?
- Matt Smith
- · Replies 14 ·
Undergrad Deriving the Svedberg equilibrium equation in ultracentrifugation
- HS-experiment
- · Replies 2 ·
Undergrad Fluid separation in boundary layer
- dRic2
- · Replies 6 ·
High School Can local gravitational variations be measured from tidal asymmetry?
- JeffEvarts
- · Replies 3 ·
Graduate What are the oscillation modes in low-gravity capillary-dominated flow?
- member 428835
- · Replies 6 ·
Undergrad How can I amplify and shift the phases of a complex waveform in MATLAB?
- Natalie Johnson
- · Replies 6 ·
Undergrad Average fluid velocity in pipe from pressure loss and radii
- physea
- · Replies 9 ·
Undergrad Pneumatic/hydraulic energy storage
- physea
- · Replies 7 ·
Undergrad Head loss in a circuit of pump and pipes
- physea
- · Replies 14 ·
Undergrad Suction Cavitation in Pumps: Causes and Frequency
- physea
- · Replies 2 ·
Undergrad I don't understand the derivation of the wave equation
- Clara Chung
- · Replies 7 ·
Graduate How to get the indices right in this calculation
- John Fennie
- · Replies 7 ·
High School Is what is depicted in this fake video possible?
- David Neves
- · Replies 21 ·
Graduate Fluids and the no-penetration condition
- member 428835
- · Replies 8 ·
Undergrad Interpretation of spatially dependent convective derivative
- Mzzed
- · Replies 5 ·
Undergrad Understanding Equation (2.34) in Heald and Marion: A Step-by-Step Derivation
- John Fennie
- · Replies 5 ·
Undergrad Resonance at multiple natural frequencies
- danial3333
- · Replies 5 ·
Undergrad Florida Atlantic's problem set harder than my sophomore course
- Ethan Mullen
- · Replies 1 ·
Undergrad Higbie's penetration theory in a bubble
- dRic2
- · Replies 4 ·
Undergrad How to identify if a system exhibits chaos?
- Tahmeed
- · Replies 2 ·
Undergrad What Are the Best Dimensions and Materials for High Vacuum Transparent Tubes?
- Kamil19991
- · Replies 6 ·
High School Why gravitational lapse rate formula is dimensionally homogeneous
- KingTubby
- · Replies 1 ·
Undergrad Glass Breaking -- What causes this characteristic fracture pattern?
- Moayd Shagaf
- · Replies 1 ·
Undergrad Chaos vs purely exponentially growing systems
- Sunny Singh
- · Replies 3 ·
Undergrad Limitations of Dimensional Analysis in Predicting Proportional Relationships
- physics user1
- · Replies 6 ·
Undergrad Can the Differential Pass in the Beginning Part of a Change in Vector Product?
- Andrea Vironda
- · Replies 1 ·
High School How can we show mathematically that a wave transfers energy?
- sanpokhrel
- · Replies 5 ·
High School Best book on intuitive reasoning about symmetry
- Leo Authersh
- · Replies 2 ·
High School Resonance relationship with glass shatter
- TT0
- · Replies 4 ·
Undergrad Relationship between standing wave and resonance?
- TT0
- · Replies 2 ·
Undergrad Why rocks don't move on Death Valley's Devil's Racetrack
- David Neves
- · Replies 9 ·
High School Does any function of the form y=f(x-vt) represent a wave?
- randomgamernerd
- · Replies 15 ·
High School Simple machines that are used in Weapons
- Antuntun
- · Replies 5 ·
Undergrad D'Alembert's Solution – Domain of dependence
- FluidStu
- · Replies 2 ·
Undergrad Shear Rate in a Rectangular Channel
- quantstr
- · Replies 6 ·
Undergrad Using physics to predict the outcome of a roulette wheel
- borson
- · Replies 12 ·
High School Feeling Earth's Rotation: A Teleported Alien's Perspective
- Ricky Lalduhzuala
- · Replies 4 ·
High School Stretching (tearing) of string
- DesertFox
- · Replies 8 ·
Undergrad Where does the formula I = -e/T comes from?
- Syazani Zulkhairi
- · Replies 2 ·
Undergrad What Unit Results from Dividing Joules per Kilogram by Meters?
- Timothy Schablin
- · Replies 4 ·
Graduate Does the virial theorem explain charged liquid column perturbations?
- weiwei
- · Replies 2 ·
High School How can Greenland lose 269b tons/year and loose only 269km3?
- IvicaPhysics
- · Replies 4 ·
Undergrad Fourier analysis and the sinusoidal plane wave
- BacalhauGT
- · Replies 7 ·
High School What is the direction of the wind based on flag direction
- TheWonderer1
- · Replies 15 ·
High School What do the d and p symbols mean in physics
- Quantum Velocity
- · Replies 5 ·
Undergrad History of brachistochrone and catenary
- zwierz
- · Replies 1 ·
Undergrad What is the significance of bandwidth in hydraulic transmission lines?
- CyberneticsInside
- · Replies 8 ·
High School Why does end correction in pipes change with radius
- Tyrone Sawyer
- · Replies 1 ·
Undergrad How many degrees of freedom does a swan's neck have
- mani m
- · Replies 9 ·
Undergrad How does laminar jet flow develop?
- member 428835
- · Replies 4 ·
High School Walter Lewin videos -- why ± 0.5 cm uncertainty why not ± 0.1?
- benny91xp
- · Replies 3 ·
High School How Can You Reattach Broken Glasses Without Reheating the Atoms?
- Blue Scallop
- · Replies 2 ·
High School How to specify direction in 3 dimensional world
- donaldparida
- · Replies 2 ·
High School Hammer / feather moon drop clip
- houlahound
- · Replies 5 ·
Undergrad Dissolved gas concentration in undersaturated liquid column
- MarkBurg
- · Replies 7 ·
Undergrad Thin film around circle and ignoring curvature
- member 428835
- · Replies 6 ·
Undergrad Measurement precision question
- calinvass
- · Replies 3 ·
Undergrad Streamlines around a sphere (qualitative)
- member 428835
- · Replies 6 ·