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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 Hooke's Law: Changes for Large Displacements
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Undergrad Poynting's Theorem in Griffiths' Electrodynamics
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Undergrad Is this expression for Mass Flowing Out of a Bottle correct?
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Undergrad A model of what makes up the physical world
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Undergrad List of hyperfine structure of the elements?
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Undergrad Experiment Ideas using an MRI scanner?
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Undergrad Poynting Theorem: What Does it Physically Mean?
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Undergrad Musings on waves - possible or already realised?
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Undergrad Wire loop in a static homogeneous field question
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Undergrad How Can Muscle Strain Be Measured?
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Undergrad Who's moving towards whom in Doppler effect situations?
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Undergrad 3rd Order Aberrations from Paraxial Rays?
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Undergrad Analysis of Ultrasonic Waves at a point
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Undergrad Does an airplane have to nose down in order to follow a curve?
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Undergrad What Is the Equation Relating Wind Erosivity to Velocity and Air Density Called?
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Undergrad Where does the missing energy go in an inelastic collision?
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Undergrad Emission lines and absorption lines
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Undergrad Iron bar wrapped with a solenoid
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Undergrad How Can I Accurately Fit an Airy Distribution Over Noisy Resonance Data?
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Undergrad Deterministic chaos and randomness
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Undergrad Question about the angle between two targets as distance increases....
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Undergrad Calculate measurement uncertainty? I made one measurement....
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Undergrad Why do the glass doors at grocery stores become foggy when...
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Undergrad Shear force and bending moments graph
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Undergrad Understanding the Parameters of an Ideal Refrigeration Cycle
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Undergrad Transition between energy and mass
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Undergrad How does the equation for experimental uncertainty work?
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Undergrad What would be a useful application for 10 Thz nano-antennas?
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Undergrad Calculating Viscous Damper Energy in Spring-Mass Systems
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Undergrad Connes' non-commutative geometry: useful or just an exercise?
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Undergrad Can Two Different Physical Theories Yield the Same Predictions?
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Undergrad How Does an MRI Work and Differentiate Between Different Tissues?
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Undergrad Clarification for a standing wave on a string equation
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Undergrad Physically relevant: fractals, phi?
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Undergrad MRI synchronization with the IRF90
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Undergrad The physics of sailboats tacking against the wind
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Undergrad Quiz question: Who Dies If 'E' Pushes The Stone?
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Undergrad What is the thickness of the atmosphere?
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Undergrad Proof of a law versus proof of a theorem
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Undergrad Does the color of an object change as it gets hotter?
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Undergrad Deriving the Boltzmann distribution
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Undergrad Covariance & Contravariance of Vectors
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Undergrad Identifying & Accounting for Systematic Error in Scales with 1mg Capacity
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Undergrad How many ion-pairs are there in normal conditions in the air?
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Undergrad What is the difference between covariance and invariance in special relativity?
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Undergrad What is the difference between transverse and plane waves?
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Undergrad Aesthetically pleasing formulae involving time?
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Undergrad Separation of Fluids in a Centrifuge
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Undergrad Adhesive Forces: Bigger vs. Smaller Straws
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Undergrad Aviation safety plane crash question/idea
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Undergrad Changing the focal plane of a video projection?
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Undergrad Why Are Electric Field Components Ex and Ey Zero in Wave Equation Solutions?
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Undergrad If Earth collided with another planet
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Undergrad Linear fitting in physics experiments with errors
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Undergrad Horizontal Force on a trapeze pivot
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Undergrad In a rifle scope, why is the reticle at the focal point?
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Undergrad Error of a measurements taken with a multimeter
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Undergrad Forces applied to trailer hitch
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Undergrad "Unexpected" Symmetry in Elliptical Orbit
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Undergrad Does Hyugen's principle apply in three dimensions?
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Undergrad What Must Abstract Conductors Be Made Of?
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Undergrad Can Newton's Theory of Gravity Explain Planetary Elliptical Orbits?
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Undergrad Boundary conditions of a forced oscillator (string)
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Undergrad Relation between statistics and theoretical physics
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Undergrad Cavitation in a closed loop pumping system
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Undergrad Can energy exist by itself (without time and matter)?
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Undergrad What physics does this BVP represent?
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Undergrad Line Spectra and low density gases
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Undergrad Vector and Scalar Tensor Invariance
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Undergrad What does this n(MAX)j=1 part mean?
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Undergrad Phase differences in Transformers
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Undergrad Counterexample to the Poynting theorem
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Undergrad How do I show a skeptic that atoms/molecules actually exist?
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Undergrad How Does Binding Energy Affect the Mass of Nucleons?
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Undergrad Short Circuiting the Secondary of a Transformer/Self Impedence
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Undergrad Do particles in the universe exchange gravitons with each other?
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Undergrad Equation for Fire Evolution Dynamics
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Undergrad How small does a system have to be for QM to be necessary?
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Undergrad Should the Wave Equation for a Longitudinal Wave Include Time?
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Undergrad Question about subtractive color mixing
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Undergrad What physical phenomena is this?
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Undergrad Noise level at high-rise buildings
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Undergrad How Are Base Vectors Defined in Covariance and Contravariance?
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Undergrad How Does Gauss's Law Apply to an Infinite Charged Rod?
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Undergrad How Do Vortices Form in Fluid Dynamics?
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Undergrad Force applied to a sphere off center of mass
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Undergrad Only certain emission lines show up in absorption spectrum
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Undergrad Calculating Recoil Forces in Firearms: How to Choose the Right Damper or Spring
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Undergrad Where Can I Find Data on the IR Transmission of Silicon and Germanium?
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Undergrad Force/P. energy functions for weak, strong interactions
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Undergrad Cathode-ray tube: Error in a book?
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Undergrad How to Calculate Work for a Time Varying Force?
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Undergrad Fried round potato slices' shape....
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Undergrad Weird Lamp Effect: Investigating the Mystery of Fringes
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Undergrad Guitar Playing and Standing Waves
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Undergrad Understanding RC Band Pass Filter Graphs
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Undergrad I can’t understand the derivation of the formula Cp=Cv+nR
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Undergrad Are Planck Units Merely a Pop-Science Fad?
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Undergrad Black Body and the colored objects around us
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Undergrad Do Fundamental Physical Constants Truly Remain Constant Over Time?
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