Other Physics Topics Forum

Post thread
Participate in expert physics discussion. Discussion on the nature and properties of matter and energy. This area is for topics that don't fit the other categories. Mainstream physics only.
Graduate What property of air makes it compressible?
  • · Replies 6 ·
Replies
6
Views
10K
Cooling air by running it through underground pipes
  • · Replies 1 ·
Replies
1
Views
7K
Why is Density Necessary in the Viscosity Comparison Method?
  • · Replies 1 ·
Replies
1
Views
7K
Deriving normal and shear stresses
  • · Replies 1 ·
Replies
1
Views
6K
Can Bubbling Air Through Water Control Relative Humidity and Temperature?
  • · Replies 1 ·
Replies
1
Views
6K
Graduate Understanding Lyaponov Time & Units
  • · Replies 3 ·
Replies
3
Views
10K
Undergrad Best video lectures on SSP following Kittel
  • · Replies 2 ·
Replies
2
Views
10K
High School Can String Theory Be Tested and Solve Cosmic Mysteries?
  • · Replies 7 ·
Replies
7
Views
9K
Undergrad Concentration of Impurities in Extrinsic Semiconductor ?
  • · Replies 3 ·
Replies
3
Views
9K
Undergrad Flow Dynamics of Sluice Gates & Groynes
  • · Replies 9 ·
Replies
9
Views
16K
High School Measuring a circle and the Uncertainty principle
  • · Replies 4 ·
Replies
4
Views
9K
Understanding the Wilhelmy Plate Method for Calculating Surface Tension
  • · Replies 1 ·
Replies
1
Views
13K
Undergrad The energy released from antimatter annihilation -- New uses?
  • · Replies 17 ·
Replies
17
Views
10K
Undergrad I Want to Remove a KTP Crystal's Coating
  • · Replies 7 ·
Replies
7
Views
9K
Undergrad Theories and their domains of applicability?
  • · Replies 16 ·
Replies
16
Views
11K
Approximate solutions to Kuramoto synchronization model
  • · Replies 2 ·
Replies
2
Views
5K
High School What would happen if we teleport 1mm^3 of neutron star core outside?
  • · Replies 26 ·
Replies
26
Views
12K
Determinism: mathematical models
  • · Replies 9 ·
Replies
9
Views
9K
High School Potassium or other minerals and the photoelectic effect
  • · Replies 3 ·
Replies
3
Views
8K
Public Outreach: How Do Physicists Like Brian Greene & Sean Carroll Do It?
  • · Replies 2 ·
Replies
2
Views
9K
Derive a flow rate equation that accounts for the fluid properties?
  • · Replies 1 ·
Replies
1
Views
3K
Why isentropic mass is taken for calculation of area of nozzels
  • · Replies 1 ·
Replies
1
Views
2K
Experiment: Finding Relation and Constant for Alarm Clock
  • · Replies 1 ·
Replies
1
Views
3K
Calculating pressur produced by explosion
  • · Replies 1 ·
Replies
1
Views
2K
Modelling Evaporation of a Liquid
  • · Replies 1 ·
Replies
1
Views
3K
Reversible/Irreversible Compression/Dilatation
  • · Replies 1 ·
Replies
1
Views
2K
Free (mostly) Expansion of an Ideal Gas
  • · Replies 1 ·
Replies
1
Views
2K
Saturated Steam - Conceptual Question
  • · Replies 1 ·
Replies
1
Views
2K
Constant calorific value problem
  • · Replies 1 ·
Replies
1
Views
2K
Can Two Points on a PV Curve Represent the Same State in Thermodynamics?
  • · Replies 1 ·
Replies
1
Views
2K
Steady state Vertical diffusion equation
  • · Replies 1 ·
Replies
1
Views
2K
High School Coal and total CO2 emissions in the UK
  • · Replies 20 ·
Replies
20
Views
8K
High School What is the true way to determine time parameters from semilog graph?
  • · Replies 2 ·
Replies
2
Views
9K
How Long to Fill Tank B from Tank A Using a 100mm Pipe?
  • · Replies 1 ·
Replies
1
Views
8K
Help with Capillary Rise Equation for Differential Equations Class
  • · Replies 1 ·
Replies
1
Views
3K
LNG: Is 300 Pounds of LNG = 55,500 BTU's?
  • · Replies 1 ·
Replies
1
Views
3K
Exploring Poiseuille's Law: Pressure, Flow, and Resistance in Blood Vessels
  • · Replies 1 ·
Replies
1
Views
3K
Evaporarive cooling. How to calculate the cooling of the air?
  • · Replies 1 ·
Replies
1
Views
3K
Fluid viscosity in a can and tendency to roll
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Help understanding the formula for the total phase shift of a waveplate stack
  • · Replies 1 ·
Replies
1
Views
9K
Undergrad The Graser: Examining a Cold War Spy Story
  • · Replies 14 ·
Replies
14
Views
13K
High School What region in NMR spectrum should I choose for integration?
  • · Replies 1 ·
Replies
1
Views
10K
High School Understanding G-Force: x,y and z Components Explained
  • · Replies 12 ·
Replies
12
Views
14K
Undergrad Stuck tray in the sink - How to separate
  • · Replies 7 ·
Replies
7
Views
11K
High School Why Does the Effective Period of a Composite Wave Remain Constant?
  • · Replies 50 ·
2
Replies
50
Views
19K
Undergrad Did bottles of wine truly get recovered from the wreck of the Titanic?
  • · Replies 27 ·
Replies
27
Views
20K
Undergrad How to find the H index of an author using Google Scholar?
  • · Replies 4 ·
Replies
4
Views
11K
Reynolds number - Characteristic dimension
  • · Replies 1 ·
Replies
1
Views
4K
What is the Effect of Influx and Efflux in Reynolds Transport Theorem?
  • · Replies 1 ·
Replies
1
Views
4K
Conversion confusion: Rankine in ideal gas constant
  • · Replies 1 ·
Replies
1
Views
7K
What Are Some Empirical Models for Calculating Activity Coefficients?
  • · Replies 1 ·
Replies
1
Views
24K
High School How physics equations transform under inverse of parameters
  • · Replies 6 ·
Replies
6
Views
11K
Undergrad Joule-Thomson Effect: Explaining Qualitatively
  • · Replies 17 ·
Replies
17
Views
14K
Undergrad Why is F=dU/dx=0 either side of inflexion point?
  • · Replies 4 ·
Replies
4
Views
11K
High School Sabine Hossenfelder and Beauty in Physics
  • · Replies 82 ·
3
Replies
82
Views
22K
Undergrad Can Raman spectroscopy identify every substance?
  • · Replies 4 ·
Replies
4
Views
12K
High School Can Pi Help Us Understand Velocity and Acceleration?
  • · Replies 6 ·
Replies
6
Views
10K
Undergrad Which Is Better for Visualizing Jet Flow: Schlieren or BOS Photography?
  • · Replies 3 ·
Replies
3
Views
10K
What is the Fundamental Nature of Location in Physics?
  • · Replies 1 ·
Replies
1
Views
19K
High School How do we know there is one proton in H?
  • · Replies 2 ·
Replies
2
Views
9K
High School Understanding the Concepts and Formulas for Energy: Potential and Kinetic
  • · Replies 45 ·
2
Replies
45
Views
52K
Undergrad Redefining the Mass Unit: Counting Particles for Precision
  • · Replies 6 ·
Replies
6
Views
11K
Undergrad Is it possible to use a DSLR as a cost effective spectrometer?
  • · Replies 9 ·
Replies
9
Views
9K
Limiting factor for tube dimensions in beam delivery system
  • · Replies 1 ·
Replies
1
Views
7K
Graduate The problem of the mass of a body
  • · Replies 5 ·
Replies
5
Views
8K
High School Proving the effects of gravity by using the scientific method
  • · Replies 22 ·
Replies
22
Views
13K
Undergrad Oscillation with constrained amplitude
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad What are the "central/axiomatic equations of physics" from which....
  • · Replies 3 ·
Replies
3
Views
8K
High School Is time a unique dimension or a constant across all dimensions?
  • · Replies 14 ·
Replies
14
Views
15K
Undergrad Understanding q: Lambda & S in the Equation
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad Understanding the Relationship Between Mass and Matter
  • · Replies 7 ·
Replies
7
Views
7K
Undergrad Why Does Tipler & Mosca Emphasize Mass Cancellation in Kinetic Friction?
  • · Replies 5 ·
Replies
5
Views
5K
Undergrad How Does Reducing Time Intervals Affect Accuracy in Numerical Integration?
  • · Replies 5 ·
Replies
5
Views
5K
High School Unanswered Questions about Tossed Coins
  • · Replies 46 ·
2
Replies
46
Views
12K
High School The difference in the binding energy per nucleon
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad If I had a cubic metre of solid osmium, a perfect cube....
  • · Replies 4 ·
Replies
4
Views
5K
Undergrad Is the Equation for Relativistic Two-Body Decay Correct?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad What is the role of the divergence theorem in deriving local laws in physics?
  • · Replies 11 ·
Replies
11
Views
6K
Undergrad The Shadow Of An Atom - False Colour Images Reveal Structure
  • · Replies 11 ·
Replies
11
Views
6K
Graduate Research styles in different branches of Physics
  • · Replies 3 ·
Replies
3
Views
5K
Equation describing linear energy transfer
  • · Replies 2 ·
Replies
2
Views
12K
High School Questions Regarding the Fundamental Rules of Error Analysis
  • · Replies 10 ·
Replies
10
Views
7K
What is the Klein-Gordon equation
  • · Replies 1 ·
Replies
1
Views
5K
Undergrad Symmetry of an exponential result from a Fourier transform
  • · Replies 3 ·
Replies
3
Views
5K
High School How Can You Model a Man Sliding on Rough Ice with Intermittent Pushing?
  • · Replies 3 ·
Replies
3
Views
4K
High School Modeling Quickly Pushed Boxes: A Beginner's Guide
  • · Replies 15 ·
Replies
15
Views
6K
Undergrad How to remove Ethanol from Gasoline?
  • · Replies 27 ·
Replies
27
Views
16K
Undergrad Data analysis for theoretical vs experimental results
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad Ionosphere: Causes of Electron Production & Recombination Reaction
  • · Replies 2 ·
Replies
2
Views
4K
High School 'IdealFluid' Describe Behavior of Matter in Phase State of liquid/gas+
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Integral equation for large surfaces
  • · Replies 6 ·
Replies
6
Views
4K
High School History of the term "square-cube law?"
  • · Replies 8 ·
Replies
8
Views
5K
High School Is mass the only store of energy
  • · Replies 9 ·
Replies
9
Views
4K
High School Is Cymatics a Scientifically Valid Phenomenon?
  • · Replies 7 ·
Replies
7
Views
9K
High School What Happens When We Apply a 10V Source to a Diode in Reverse Bias?
  • · Replies 14 ·
Replies
14
Views
5K
High School Seeing Merging Shadows in the Sunlight
  • · Replies 5 ·
Replies
5
Views
4K
High School Trivial questions regarding parallax and measurement of distances.
  • · Replies 7 ·
Replies
7
Views
5K
High School What is the Relationship Between Electric Field and Force on a Charged Particle?
  • · Replies 7 ·
Replies
7
Views
4K
High School Understanding & Applying Lenz's Law
  • · Replies 6 ·
Replies
6
Views
6K
High School Why is it possible to push your finger through butter?
  • · Replies 13 ·
Replies
13
Views
5K