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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.
Undergrad Why limited discussion of only looking at history
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High School How to specify the direction of an area vector?
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High School Is this Live/Neutral transition true and instant?
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High School Are these AC circuits different? And does grounding change the voltage?
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Undergrad What is the difference between thrust and thrust density?
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High School Force at which a cutting disk comes off from an angle grinder
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Undergrad Limits of the variatonal principle
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Undergrad Description of Adiabatic Expansion
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High School Pixel Size of TVs: OLED & LCD Explained
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Undergrad Compatibility of Physics and Abstract Algebra
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Graduate Stressing Over Stress Tensor Symmetry in Navier-Stokes
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Undergrad Move the Earth Away from the Sun
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High School Calculating the P.E. of a system
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High School Is it Possible for a Short Circuit to Contradict Voltage in a Parallel Circuit?
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High School Free Expansion of Gas: Internal Energy & Work
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Undergrad How to estimate total energy when dealing with beamsplitters
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High School Waves in a medium versus waves in a vacuum (ie no medium)
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Undergrad Proof that the E field inside a cylindrical resistor is constant
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High School Gravity Constant: How Calculated & How to Measure Planet Weight
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Undergrad Does a wave in a moving medium propagate ....
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High School How do physicists know that the past is immutable?
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Graduate Integrating a Rogowski Coil's Output
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High School The physical properties of diamonds: no melting point?
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Undergrad How can I calculate the energy of a body of mass?
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High School Airsoft bb and the Magnus effect, probaly very dumb but
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Undergrad How much force to throw an object vertically?
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High School Can Closed Timelike Curves Violate Entropy by Allowing Time Travel?
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Undergrad Glass -- how to increase the surface area
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Undergrad Thought experiment on buoyant forces on a system
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Undergrad Calculating the Mass of a Piston for a Spring-Based Launcher
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High School Is it possible to experience time loops?
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Undergrad What was the value of the permeability constant in 1865?
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High School Is the gravitational force higher than it should be?
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High School Do Materials' Elastic Properties Influence Motion and Force Equilibrium?
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High School Breaking Down the Mystery of Ice VII Nucleation
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Undergrad Understanding what the complex cosine spectrum is showing
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High School What would happen to Earth's temperatures without an atmosphere?
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High School How Did Polonium-210 Contaminate London in the Litvinenko Case?
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High School Is Radioactive Decay Truly Random?
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Undergrad Is a Photon the Quanta of Both Electromagnetic Field and Wave?
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A list named the"10 characteristic experiences of physics" does it exist?
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Mathematical series in physics - Why and when do we need them?
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Undergrad Does the Principle of Least Action Have a Physical Meaning?
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High School Gravity - Do atoms orbit humans ?
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Undergrad Roulette Prediction Algorithm Problem
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Eigenfrequencies of a multiple DOF system
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Undergrad How to Derive Malus' Law for Two Polarizers Using Integrals?
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High School COM of Universe: Does it Mean Anything?
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Vector Labeling Convention: Vxi or Vix?
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High School MHD pump idea for school project
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High School Understanding the Parallelogram Method for Solving Forces
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Undergrad Why different cutoff frequencies for TE and TM in a medium?
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Undergrad Why Is Energy Defined as E=mc^2 and Not Another Dimension?
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High School Why does time pass in an isolated vacuum?
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Undergrad How do I convert mass units in physics?
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Undergrad Stripes in Kundt's tube experiment
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Undergrad A question about units in equation: Dimensional analysis
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Undergrad Atmospheric hazing on an infinite plane
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High School Why is there a reverse wind current inside my convertible?
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Undergrad Why E=mc^2 is different from E=1/2 mv^2?
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Undergrad Is gravitational prospecting pseudoscience?
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Undergrad General definition of spatial dimension?
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High School Is the Force Between Two Protons Weaker Than Between Two Neutrons in Nucleons?
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Undergrad What purpose does the delta notation serve in this context?
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Undergrad Summation convention with expressions containing parentheses
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Undergrad Why do the signs alternate when using Gauss' law for gravity?
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Undergrad Why don't humans glow in the dark?
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Graduate Normalization of Radial Distribution Function
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Undergrad Dimensional analysis involving partial derivatives
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Undergrad Resultant of Different Permittivity substances
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Undergrad Compression of gases that liquefies
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Undergrad What Causes Thunder? New Research Answers
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Undergrad Time harmonic case of Gauss's Law
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High School Is Equilibrium a Scalar or Vector Quantity?
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Undergrad How Do Geometrical and Physical Symmetry Differ in Objects?
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Graduate Question about Helmholtz resonance
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High School Franklin Bell: Does Positive/Negative Side Matter?
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High School Feasibility of a L1 Gravity Swing Cold Launch?
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High School Vector multiplication and division
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Undergrad How do we justify "Natural" Units
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High School Why longitudinal waves are waves?
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High School Radio Waves & Penetration: Why Can They Pass Through Walls?
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Graduate What Constitutes a Natural Completion of a Physical Theory?
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High School What is meant by "first order" and "second order"
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Force Resultants: Comparing Rules
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High School Direction of Vectors: North vs Northeast
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High School Is there an experiment proving observer dependency exists?
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Undergrad Millikan's Experiment: Observing Vibrating Oil Droplets
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Undergrad Was the recent ISS leak imminently dangerous?
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High School How/Why Is So Much Force Generated In A Bender?
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Undergrad Can Schrodinger's cat apply to things other than alive/dead?
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Undergrad Rocket-Jet Hybrid, Rocket + Ramjet
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Undergrad How is Solder Made? Learn the Process & Its Benefits
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Undergrad Time reversal symmetry in physics
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Undergrad Musings, seeking opinions about the nature of time
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High School Do Can-and-String Phones Produce Clear Voices or a Tinny Sound?
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Undergrad Source of Energy in a Field of Forces
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Undergrad The air parcel expands as it rises inside a pipe
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High School Coil B field strength with different diameters
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Undergrad Solving Planar Fluence: Ratio of Electrons per cm2
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