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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.
B Is this mark scheme correct, poorly worded, or wrong?
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I Gases: Not Required to Be Blackbodies
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B The Gain of the Inverting Amplifier and Virtual Earth....
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B Can we truly understand the concept of time?
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B A New Way to Make Fusion Reactors More Efficient
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B Tensor Conventions: V^*⊗V^*⊗V (1,2) vs (2,1)
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B When does an isotope begin to decay?
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A Acceptable Atmosphere for CZ/Float-zone Refining
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B Are trigonometric ratios physical quantities?
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B How does sweating cool a person down?
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I How do three flywheels, one in each axis, behave?
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B A silly question about why the sky is blue
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I The component of the total spin in the direction of H
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I Atmospheric Flow: Meaning & Natural Examples
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I How to derive Nielsen equation from Lagrange equation?
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I What is the physical meaning of divergence?
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Why Does a Prism Periscope Focus Light Instead of Scattering It?
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I Significant Physical/Chemical Change Found by Sign Reversal?
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B Gravitational force of the Earth and Moon
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B Gravitational waves for data communication?
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B Why are we trying to unify all the physical forces?
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I Finding the Fresnel coefficients from interface conditions
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I Non-aquaeous expansion medium for a reactor
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I Complex permitivity of good conductors
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I Atmospheric Lapse Rate (calculating the altitude of cloud formation)
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I Can you explain this photo to me?
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B Simple derivation of the Equations of a Gyroscope
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B Is the Term Energy Field Misused in Physics?
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B Rayleigh Interferometer: Impact of Slip Placement on Interference Pattern
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B What is the equivalent in kg of the force exerted on a plate
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I Calculating Velocity of a Ball in a Black Hole's Sphere of Influence
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B Could a Particle Accelerator Create a Black Hole That Destroys Earth?
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B Could steam be expanded through a nozzle to get 0°C gas?
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I Intrinsic impedance of a resistor
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I Isotope clock reset debunks earth's age?
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B Why there is a difference between same components of 2 paral
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I Is there a mechanism for creation of negative energy density
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Foundation of the laws of physics
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Can the equations for two retarded potentials satisfy the Lorenz condition?
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I Direction of E field and propagation of wave in a conductor
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A Symmetry of the permittivity tensor of lossless media
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I Caculate the reaction force of a radially moving object
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I Diagram of CO2 dip at 4.3 microns
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B Question about forces in a gearbox
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I Back to basics: bubbles in a syringe
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Question About SETI & Time Chauvinism
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B Is radioactive decay truly random?
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I Where do I get raw data for plotting Bragg curve?
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B Gravitational attraction of 2 equal masses
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I Restricted three body problem (numerical simulation of gravitational attraction)
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B Energy from the Sun: Is it Dangerous?
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B Is one side of the Earth faster at night and slower at daytime?
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I Can a 7.2 Volt Driver Rotate a 300 Pound Weight with Ease?
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B What Is the First Dimension and Why Is It Considered Nothing?
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B Additive colour theory and "traditional" colour mixing
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B What is wrong with gravity equations?
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I Diffusion & Effusion: What Is It?
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What Are the Best Online Physics Learning Tools and Resources?
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A Free expansion of a real gas vs Joule-Thomson effect
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I Optimizing Venturi Effect in Hyperboloid Tower Construction
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B Why did my coffee foam over when I added milk?
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B Can Black Holes Be Annihilated?
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I Some questions about toppling of a set of two cylinders
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A Colloidal suspensions, Polymer solutions
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B Is the Strong Force Really Stronger Than the Electromagnetic Force?
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I Intuition for why d<p>/dt = -dV(<x>)/dx
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I Error propagation and standard deviation
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B So what is the new definition of the kilogram?
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I Does Planet Mass Affect Orbital Period?
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B What is the meaning of the famous equation E=mc^2?
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I How does the inverse square law apply to a focused detector?
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B Hp/Kw required to move 1.5L/m of diesel fuel at 17.2 Bar?
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I How accurate are radon detectors?
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I Is there any theoretical basis for laws being 2nd order
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I How can I compare different dogs' performance given these values?
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B Would a smaller fan blade be more efficient?
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B What is the fundamental nature of matter and energy?
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Is the MRI Signal Highest When Protons Are Coherent or Dephasing?
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I Phasor Addition Explained - Wave Physics
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B Find the Perfect 4 Point Probe Head Online - Expert Recommendations
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B Can a Scalar Operate with a Vector Algebraically?
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I Problem with gravitation field perpendicular vector.
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B How to Determine Particle Probability with Constant Linear Momentum?
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B Is Work the Same as Kinetic Energy?
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I Print something to be seen in focus by person w/o glasses?
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I Is a Single Bearing Pedal Possible for Bicycles and Motorcycles?
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2D becomes 3D when looked at by one eye
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I Understanding Magnetic Domain Walls and Hysteresis Behavior: Can You Help?
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I Can i create an air flow through a geometry?
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Insights What is the Spectral Paradox Discussed in PF Insights?
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B How do you make neutral wire 'neutral'?
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B What easily avaible liquids are transparent in IR?
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B Is 3-point of H20 used for Kelvin a certain set of isotope
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I Hooke’s law -- Only valid for small delta-x values?
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B Is the 'A Level Physics by Roger Muncaster' suitable for 2018/2019 Syllabus?
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B Calculating tangents from a table
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I Why limited discussion of only looking at history
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B How to specify the direction of an area vector?
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B Is this Live/Neutral transition true and instant?
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B Are these AC circuits different? And does grounding change the voltage?
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