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 Free boundary conditions on vibrating rectangular membranes
- abilolado
- · Replies 20 ·
Undergrad Escape of Hydrogen from the Earth's Atmosphere
- MartinG
- · Replies 15 ·
Undergrad Behavior of a curved 2D sheet and a curved 1D wire under acoustic wave
- Seanskahn
- · Replies 3 ·
Undergrad Phase Speed of Wave in non-relativistic Doppler Shift Derivation
- unified
- · Replies 1 ·
Undergrad Why does plugging the lota bowl's side hole stop water flowing from the bottom?
- Xenon02
- · Replies 13 ·
Undergrad Solving for ##\theta## in a Trigonometric Equation
- phantomvommand
- · Replies 7 ·
High School Why do relaxed hands feel heavier over time
- Einstein60
- · Replies 10 ·
Undergrad Can Spider Silk Conduct Electricity?
- Delta2
- · Replies 2 ·
High School Measuring change in g with height (TV program many years ago)
- CWatters
- · Replies 21 ·
High School When do marbles behave like a liquid in a beaker?
- beamthegreat
- · Replies 3 ·
Undergrad If I clap once to a wall, and then walk forward, will I hear an echo?
- phantomvommand
- · Replies 21 ·
High School Ultimate tensile strength vs fracture stress on stress-strain graph
- songoku
- · Replies 4 ·
Undergrad Are Peak Moment and Peak Torque Equivalents in Biodex Dynamometry Measurements?
- teokevin11
- · Replies 3 ·
Undergrad Water Waves Over Obstacles: Higher Frequencies Grow, Not Decay
- person123
- · Replies 3 ·
Undergrad What Keeps Water in a Straw When It's Removed from a Glass?
- MattGeo
- · Replies 12 ·
Undergrad Fluid Viscosity & Viscous Friction Between Plates
- Dario56
- · Replies 4 ·
High School Potential energy in standing wave compared to traveling wave
- versine
- · Replies 1 ·
Undergrad Does a field affect the originating entity?
- synch
- · Replies 6 ·
Challenge Experimental Physics Challenge, June 2021
- Twigg
- · Replies 8 ·
Undergrad What would it take to eliminate leap years?
- some bloke
- · Replies 48 ·
Graduate Why is the sinusoidal considered the fundamental frequency?
- jaydnul
- · Replies 22 ·
Undergrad Can a chameleon-inspired capture system deorbit orbital debris?
- CdE62021
- · Replies 12 ·
High School Bullet lead with given parameters
- gr3gthepilot
- · Replies 2 ·
Undergrad The dramatic difference between wet and dry sphere splashes
- Russ Edmonds
- · Replies 1 ·
Graduate Which equation describes surface waves in a fluid on the same scale?
- hunt_mat
- · Replies 0 ·
Undergrad Amount of Noise extinction in Acrylic glass per thickness in mm
- Tech_Rizzle
- · Replies 18 ·
Undergrad How does physics of living matter differ from non-living matter?
- kinchit bihani
- · Replies 8 ·
Undergrad How to ensure an equation is dimensionless when it includes "Debye"
- bumblebee77
- · Replies 2 ·
Undergrad How does a standing wave form?
- phantomvommand
- · Replies 8 ·
Undergrad Graduation of air flow inside a vacuum chamber
- kaigoss69
- · Replies 4 ·
Undergrad Frost on roof window melts in lines
- greypilgrim
- · Replies 11 ·
Undergrad Multiplying Uncertainties in Different Units
- e2m2a
- · Replies 4 ·
Undergrad Longitudinal waves on a string
- zongo123
- · Replies 7 ·
High School Doppler effect in moving medium?
- xxxyyy
- · Replies 1 ·
High School Fluid movement between 15 and 25 HgV vacuum chambers
- FiveO
- · Replies 7 ·
High School Why doesn't the Earth at the equator experience a sonic boom?
- bo reddude
- · Replies 53 ·
Graduate Ground Penetrating Radar formula
- PeterPeter
- · Replies 3 ·
High School Resources for writing physics experiment reports
- xxxyyy
- · Replies 1 ·
Undergrad The kilogram and Planck’s constant
- sophiecentaur
- · Replies 18 ·
High School Did the second define the quartz frequency or vice versa?
- Pedroski55
- · Replies 17 ·
High School Time and distance variables in stationary wave equations from superposition
- songoku
- · Replies 12 ·
Graduate Calculating noise of a transducer from molecular vibration
- curiously new
- · Replies 2 ·
High School Measuring a change in gravity - thought experiment question
- brajesh
- · Replies 8 ·
High School Apparent missing negative phase oscillation energy - where is it?
- harrylentil
- · Replies 11 ·
Undergrad How to stay warm lost in the wilderness in winter?
- gary350
- · Replies 1 ·
High School Variation of air density with height
- brotherbobby
- · Replies 8 ·
High School Why is Gaussian charge not equivalent to SI charge?
- songoku
- · Replies 14 ·
Undergrad The world from a bat's perspective (sonic images)
- Killtech
- · Replies 21 ·
Graduate Dx in an integral vs. differential forms
- Trying2Learn
- · Replies 6 ·
Undergrad Where Can I Find Germanium PIN Photodiodes for Sale?
- elopariel
- · Replies 1 ·
High School Implicit error margins based on significant figures
- johann1301h
- · Replies 18 ·
Undergrad Why is it claimed that Betz's limit is a law?
- normandajc
- · Replies 30 ·
Undergrad Units of trigonometric functions?
- John Greger
- · Replies 7 ·
Graduate Solving Kepler's Equation Over Three Centuries
- Will Flannery
- · Replies 14 ·
Visualizing drum head vibrations with printed patterns
- Curiousgeorge77
- · Replies 7 ·
High School Photo of crosswalk lines distorted by tires action-reaction
- ezfzx
- · Replies 16 ·
High School Length is the measure of intervals in space?
- sahilmm15
- · Replies 11 ·
High School How to Linearize an R vs θ graph (distance vs angle)
- Bianca526
- · Replies 6 ·
High School What is the wave intensity formula for sound?
- CoolGod
- · Replies 2 ·
Undergrad What is the integral of energy?
- Boltzman Oscillation
- · Replies 22 ·
High School Does pi exist in all physical situations?
- richard9678
- · Replies 61 ·
High School Node Placement in Stationary Waves on Pool Surfaces
- jaumzaum
- · Replies 7 ·
High School Physics experiment ideas for IB Extended Essay
- utp9
- · Replies 3 ·
Undergrad Error analysis: simple but confusing matter
- haushofer
- · Replies 3 ·
Undergrad Why does energy travel in waves?
- JayJ
- · Replies 13 ·
High School Why does my head feel heavy when I go out on a cold weather day?
- iVenky
- · Replies 8 ·
High School What is the RMS value in this context?
- Frigus
- · Replies 11 ·
Undergrad Coexistence of Solid and Liquid Matter: Conditions for Existing One Phase?
- fxdung
- · Replies 5 ·
Undergrad Air density with a significantly higher sea level
- CMaso
- · Replies 5 ·
High School Why is squaring used in physics equations?
- Pjeter Schornstein
- · Replies 13 ·
High School What is the difference between "Unitless" and "Dimensionless"?
- jaumzaum
- · Replies 7 ·
High School Is energy considered to be physical?
- Robert P
- · Replies 4 ·
Insights Intro to Physically Reasonable Waves on a String
- Redbelly98
- · Replies 4 ·
High School Air flow through melodica passages and mouthpieces
- Freixas
- · Replies 3 ·
High School Upside down buoyancy (Have you seen this?)
- kuruman
- · Replies 3 ·
High School Dangers with a diving bell combined with a long snorkel
- Philip Koeck
- · Replies 21 ·
Undergrad Liquid soap pulsing as it's drawn into a syringe
- puc
- · Replies 17 ·
Undergrad What are the applications of dimensional analysis and why does it work?
- Leo Liu
- · Replies 5 ·
Undergrad Vibrations of waves with pinned vs free boundary conditions
- member 428835
- · Replies 10 ·
Graduate How to get the second line of this equation from the first one?
- zb23
- · Replies 5 ·
High School Non-linear Behavior, Chaos to Order
- Secan
- · Replies 7 ·
Graduate What is the difference between aggregation, nucleation and growth?
- Sciencestd
- · Replies 4 ·
High School Dropsheet-duct tape wall in The Martian
- DaveC426913
- · Replies 7 ·
Undergrad Child's experiment to weigh air
- lloyd709
- · Replies 59 ·
Undergrad Are there waves that go up and down without going below zero displacement?
- danielhaish
- · Replies 25 ·
Undergrad Projectile trajectory of penguin feces and rectal pressure
- jtbell
- · Replies 10 ·
Undergrad A real life problem with plumbing at my house
- iVenky
- · Replies 12 ·
High School Can Vibranium Realistically Be Used in Hyperloop Construction?
- alforwood
- · Replies 6 ·
High School Measurement and Uncertainities
- Anonymous1
- · Replies 4 ·
Undergrad The total energy stored in a battery (theory/formula)
- feynman1
- · Replies 7 ·
Undergrad Why volume is conserved but not the surface area?
- Adesh
- · Replies 33 ·
High School Exponential formula for Excel sheet
- MrNewton
- · Replies 2 ·
High School How to calculate the amplification of a cone
- gary350
- · Replies 1 ·
Graduate Through the eyes of a being that can see two in dimensions
- Lisastronomy
- · Replies 4 ·
Undergrad Can you blow a soap bubble in the vacuum of space?
- mollwollfumble
- · Replies 9 ·
Graduate Where Can I Submit a 15-Page Article on Educational Largangian Mechanics?
- wrobel
- · Replies 6 ·
High School Animation of a standing wave formed by components from a free end
- pkc111
- · Replies 11 ·
Undergrad Solve the Mystery of the Alarm Signal: Duncan's Story
- duncan108
- · Replies 37 ·
Undergrad What contexts is this equation relevant to, and what do the brackets mean?
- emrock
- · Replies 13 ·
Undergrad Difficult Series Battery Problem
- Patrick Underwood
- · Replies 1 ·