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 Singing Crystal Wineglass -- Does the wine mass determine the pitch?
- Twodogs
- · Replies 22 ·
Undergrad Why is the Cross Product Used in Mathematics? Understanding its Role and History
- Trying2Learn
- · Replies 21 ·
Undergrad Wave motion and a stretched string
- mondo
- · Replies 3 ·
High School Simulate an altitude at 16000-18000 feet with water depth
- Rev. Cheeseman
- · Replies 29 ·
Undergrad Calculating Watt Hours for a time interval less than 1 second
- pete94857
- · Replies 5 ·
Undergrad How is the mass of the Earth or the Sun measured?
- C18
- · Replies 7 ·
High School Is this equation at all sensical?
- DaveC426913
- · Replies 3 ·
Undergrad Maximizing wave reflection from a steel cable connected to a pillar
- itamar123
- · Replies 11 ·
Undergrad How does pi in physics relate to circular motion and waves?
- NoahOl
- · Replies 16 ·
High School Tangential Velocity (maybe)
- Old Man Scho
- · Replies 33 ·
High School Can Ionic Compounds conduct electricity in a gaseous state?
- SliverStrike
- · Replies 3 ·
Undergrad What happens to X-rays if they do not meet Bragg's law?
- gaiussheh
- · Replies 1 ·
High School Confusion about Wave Motion
- ktmsud
- · Replies 14 ·
Undergrad Regarding noise propagation
- Helios047
- · Replies 6 ·
Undergrad Gravity at Earth's poles vs equator
- michelcolman
- · Replies 12 ·
Undergrad Does a component of a vector have components?
- titasdasplus
- · Replies 14 ·
Undergrad Sealing vacuum chamber holes air tight
- zaillian
- · Replies 21 ·
Undergrad Why is saxophone growling produced by modulation of the sound waves?
- Daniel Petka
- · Replies 92 ·
High School My head spins when I think about time
- mixfijoe
- · Replies 8 ·
High School If the source of the pressure distribution around a lifting airfoil is known, why is not explained in textbooks?
- Squizzie
- · Replies 23 ·
Graduate Electron drift velocity in a gas discharge
- Timothy S.
- · Replies 1 ·
High School Can ground vibrations from a server hub travel through clay pipes?
- Housey210
- · Replies 16 ·
Undergrad Gas Pressures and the Resistance of Materials (Biodigester Generates Methane)
- Steven Bolgiano
- · Replies 16 ·
Undergrad Fluorescent lamps And Fan remote
- Aryamehr
- · Replies 2 ·
High School Is an ellipsoid the best shape for a BBQ?
- synch
- · Replies 10 ·
Undergrad Claude Naiver work on Navier-Stokes equations
- user079622
- · Replies 2 ·
Undergrad What is Surface Plasmon Resonance?
- PhysicsEnjoyer31415
- · Replies 2 ·
Undergrad What are the properties of a Sound Pressure Wave going down into a Cone?
- gary350
- · Replies 11 ·
Undergrad Using a tuning fork vs computer tuner for violin
- sussertown
- · Replies 12 ·
High School Sound Intensity doubles if number of noise sources double?
- Kashmir
- · Replies 7 ·
Undergrad Could vibration carry electricity or something else?
- uncleoscy
- · Replies 2 ·
High School What Causes the Void Formation in Discarded Yogurt During Disposal?
- ROGER WALL
- · Replies 1 ·
High School Sine wave noise at different frequencies
- Ephant
- · Replies 77 ·
High School Airflow around a vertical cylinder (such as a cigar)
- DaveC426913
- · Replies 13 ·
Undergrad Infinite flow with capillary tubes?
- Warp
- · Replies 1 ·
Undergrad Feynman lectures on physics: random walk
- YanaFFF
- · Replies 6 ·
High School Why Do Poached Eggs Stay In The Center?
- bmarc92
- · Replies 10 ·
High School Is the Longer Path Quicker in Physics?
- valenumr
- · Replies 7 ·
Undergrad Sound power, amplitude, frequency, and decibels
- ngn
- · Replies 5 ·
Undergrad For fun: How fast would an open-front CRT kill an average human? [A?]
- DynV
- · Replies 3 ·
- Redirect
Can a mathematician solve high school physics tasks without physics knowledge?
- user079622
- · Replies – ·
High School Log relationship between thickness of material and sound absorbed?
- Marcogoodie
- · Replies 1 ·
Undergrad Why singing a note while playing a note creates a difference frequency
- Daniel Petka
- · Replies 8 ·
High School Does a dropped coin convert more energy to sound or heat on impact?
- Darmstadtium
- · Replies 12 ·
High School Speed of sound in steel at different temperatures?
- Dante Meira
- · Replies 2 ·
High School Why does a plasma ball emit light?
- ahmeds
- · Replies 10 ·
Undergrad Ultrasound penetration through stacked aluminum sheets with acoustic impedance
- ChrisCOD
- · Replies 15 ·
High School What is the difference between standing wave and resonance?
- jinweiiii
- · Replies 18 ·
Undergrad What happens if you connect the ocean floor and the surface with a pipe?
- abrek
- · Replies 13 ·
Undergrad How Can I Create a Flavored Coating for Ice Spheres in Cocktails?
- AstroBar
- · Replies 4 ·
Undergrad Is nonlinear acoustics in mainstream physics?
- Squizzie
- · Replies 42 ·
Undergrad Uncertainties accumulate when measuring longer lengths?
- fog37
- · Replies 7 ·
Undergrad Reported uncertainties for time and distance in physics experiment
- fog37
- · Replies 1 ·
High School How to statistically calculate the final value?
- Lotto
- · Replies 7 ·
Undergrad How does a free surface flow cause non-linearity?
- binbagsss
- · Replies 4 ·
Undergrad Can 20-40 kHz ultrasound penetrate 60 cm of air and 3 cm of bone?
- Sibilo
- · Replies 32 ·
Undergrad How much ultrasound energy reaches a target through an aluminum plate?
- ChrisCOD
- · Replies 1 ·
High School Non-Sinusoidal Standing Waves Existence?
- QuantumCuriosity42
- · Replies 11 ·
Undergrad Interesting sound-making hydrogen-burning device
- Spinnor
- · Replies 2 ·
Undergrad Transverse and longitudinal waves comparison
- physicsmaster123
- · Replies 7 ·
Undergrad The physics behind mixing coloured pigments (questions inside post)
- TomP86
- · Replies 4 ·
High School How are fractures in airplane structures detected by ultrasound?
- pgirl1729
- · Replies 2 ·
Undergrad What power rating do UV-A Tubes have? (tanning salons)
- Arceus
- · Replies 10 ·
High School What causes ±0.1 m/s² gravity variations beyond altitude and latitude?
- StarHunter
- · Replies 22 ·
Undergrad Error on a weighing scale due to wrong size
- cloa513
- · Replies 4 ·
High School Units of S/N ratio in some papers
- HAYAO
- · Replies 8 ·
High School Some questions about humidity and storing DVDs in a closed cardboard box
- carlos78
- · Replies 3 ·
Undergrad Is the energy destroyed in this experiment?
- new_scientist
- · Replies 15 ·
High School What is meant by "local melting"?
- Lotto
- · Replies 11 ·
Undergrad Understanding the propagation of sound on molecular Scale
- Slimy0233
- · Replies 8 ·
High School The SpaceX Launch and Aftermath
- TonyStewart
- · Replies 1 ·
High School Water surface behavior under pressure change
- Bjott
- · Replies 4 ·
Undergrad Resources explaining vectors beyond magnitude and direction
- Trying2Learn
- · Replies 14 ·
High School Should I use True North or Magnetic North to align my sundial?
- gary350
- · Replies 15 ·
High School How does the density of air affect the note you hear?
- rafk_1
- · Replies 7 ·
Undergrad Neil DeGrasse Tyson on "sharing water" with historical figures
- willym
- · Replies 15 ·
High School How long does it take to reach harmful CO2 levels in a room?
- Airbreather
- · Replies 11 ·
Undergrad Surface area and length (percent increase relationship)
- simito_
- · Replies 6 ·
Graduate Conservation Laws from Continuity Equations in Fluid Flow
- Stuart_M
- · Replies 2 ·
Undergrad At what level will the water settle in this system?
- mcmpw
- · Replies 14 ·
Undergrad Measuring Low Resistance: Why Meter Bridge is the Preferred Choice
- phymath7
- · Replies 5 ·
Undergrad Pickleball Physics -- Player reaction time vs aging
- tjmoorpark
- · Replies 2 ·
Undergrad What is the benefit of measuring both direct and reverse current?
- phymath7
- · Replies 5 ·
High School Negative pressure in a car to power it
- Bike Mi Vie
- · Replies 23 ·
High School Air volume in a tank at different pressures
- Edm
- · Replies 1 ·
Undergrad Equations for Spherical Resonators
- DrewPear
- · Replies 3 ·
High School How Do Oscillations and Particles Interact in Electromagnetic Fields?
- nrckls
- · Replies 9 ·
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 ·