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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 Isn't planetary rock dating really supernova dating?
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Undergrad Subsonic and Supersonic Airflow Through a Constriction
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Undergrad Do two perpendicular wires exert a force on each other?
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Undergrad How Does Gravitational Jerk Affect Acceleration in Space?
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Undergrad Simple harmonic oscillators on floating object in liquid
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Undergrad What is a realistic image of quarks?
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Undergrad Is this proof regarding massless strings correct?
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Undergrad Damped Oscillations: Does a Pendulum Ever Truly Stop?
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Undergrad Grounding Process: Neutralizing Negatively Charged Objects
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Undergrad Wave conventions: E(x,t) and E(t), E(x) confusion
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Undergrad What are the physics behind a bell siphon in an aquaponics system?
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Undergrad Showing that planets follow elliptical orbits
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Undergrad Cooking Physics: 2 TV Dinners at 350 Degrees
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Undergrad How to change the color of an LED?
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Undergrad Adhesive force between cutting oil and metal chips?
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Undergrad Pixels Per Inch Calculation Paradox?
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Undergrad Single-mode vs multi-mode fiber coupling
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Undergrad What is the significance of the radioactive decay constant?
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Undergrad Can anything be measured with a single measurement?
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Undergrad Example of a theory that was right after 20 years of failures?
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Undergrad Galilean transformations x Galilean Group
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Undergrad Coherence, Young's double slit experiments.
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Undergrad Indirect Airflow for Safe Extraction of Hydrogen from Lead-Acid Battery Room
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Undergrad Noether's theorem for discrete symmetry
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Undergrad Understanding Energy States in Complex Systems
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Undergrad Stress problem between superconductor and wire
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Undergrad Trying to better understand what viscosity really is
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Undergrad Non-Linear Evaporation: Explained for Beginners
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Undergrad Can the volume of a control volume change with time?
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Undergrad What does Fermat's principle of least time mean for causality
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Undergrad Double slit displaying anti-fringes?
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Undergrad How to select gear/sprocket ratios for vehicle?
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Undergrad Tipler/Mosca significant figures
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Undergrad Collimating an extended source to infinity?
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Undergrad Ice patterns on the inside of my windshield
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Undergrad Gases: Not Required to Be Blackbodies
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Undergrad How do three flywheels, one in each axis, behave?
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Undergrad The component of the total spin in the direction of H
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Undergrad Atmospheric Flow: Meaning & Natural Examples
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Undergrad How to derive Nielsen equation from Lagrange equation?
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Undergrad What is the physical meaning of divergence?
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Undergrad Significant Physical/Chemical Change Found by Sign Reversal?
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Undergrad Finding the Fresnel coefficients from interface conditions
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Undergrad Non-aquaeous expansion medium for a reactor
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Undergrad Complex permitivity of good conductors
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Undergrad Atmospheric Lapse Rate (calculating the altitude of cloud formation)
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Undergrad Can you explain this photo to me?
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Undergrad Calculating Velocity of a Ball in a Black Hole's Sphere of Influence
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Undergrad Intrinsic impedance of a resistor
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Undergrad Isotope clock reset debunks earth's age?
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Undergrad Is there a mechanism for creation of negative energy density
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Undergrad Direction of E field and propagation of wave in a conductor
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Undergrad Caculate the reaction force of a radially moving object
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Undergrad Diagram of CO2 dip at 4.3 microns
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Undergrad Back to basics: bubbles in a syringe
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Undergrad Where do I get raw data for plotting Bragg curve?
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Undergrad Restricted three body problem (numerical simulation of gravitational attraction)
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Undergrad Can a 7.2 Volt Driver Rotate a 300 Pound Weight with Ease?
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Undergrad Diffusion & Effusion: What Is It?
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Undergrad Optimizing Venturi Effect in Hyperboloid Tower Construction
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Undergrad Some questions about toppling of a set of two cylinders
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Undergrad Intuition for why d<p>/dt = -dV(<x>)/dx
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Undergrad Error propagation and standard deviation
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Undergrad Does Planet Mass Affect Orbital Period?
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Undergrad How does the inverse square law apply to a focused detector?
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Undergrad How accurate are radon detectors?
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Undergrad Is there any theoretical basis for laws being 2nd order
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Undergrad How can I compare different dogs' performance given these values?
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Undergrad Phasor Addition Explained - Wave Physics
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Undergrad Problem with gravitation field perpendicular vector.
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Undergrad Print something to be seen in focus by person w/o glasses?
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Undergrad Is a Single Bearing Pedal Possible for Bicycles and Motorcycles?
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Undergrad Understanding Magnetic Domain Walls and Hysteresis Behavior: Can You Help?
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Undergrad Can i create an air flow through a geometry?
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Undergrad Hooke’s law -- Only valid for small delta-x values?
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Undergrad Why limited discussion of only looking at history
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Undergrad What is the difference between thrust and thrust density?
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Undergrad Limits of the variatonal principle
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Undergrad Description of Adiabatic Expansion
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Undergrad Compatibility of Physics and Abstract Algebra
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Undergrad Move the Earth Away from the Sun
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Undergrad How to estimate total energy when dealing with beamsplitters
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Undergrad Proof that the E field inside a cylindrical resistor is constant
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Undergrad Does a wave in a moving medium propagate ....
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Undergrad How can I calculate the energy of a body of mass?
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Undergrad How much force to throw an object vertically?
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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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Undergrad What was the value of the permeability constant in 1865?
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Undergrad Understanding what the complex cosine spectrum is showing
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Undergrad Is a Photon the Quanta of Both Electromagnetic Field and Wave?
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Undergrad Does the Principle of Least Action Have a Physical Meaning?
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Undergrad Roulette Prediction Algorithm Problem
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Undergrad How to Derive Malus' Law for Two Polarizers Using Integrals?
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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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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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