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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.
I How do I show a skeptic that atoms/molecules actually exist?
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I How Does Binding Energy Affect the Mass of Nucleons?
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I Short Circuiting the Secondary of a Transformer/Self Impedence
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B Difference between Gravitational Force and Gravity?
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B Is the time dimension more fundamental?
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I Do particles in the universe exchange gravitons with each other?
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I Equation for Fire Evolution Dynamics
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B Vector Math: Adding, Subtracting & Division
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B Does the Drude Model Account for J Cross B Force in Hall Conductivity?
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B ACT Graph: Understanding Data Points & Atmospheric Layers
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Is It true that matter cannot be created or destroyed?
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I How small does a system have to be for QM to be necessary?
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Km and km: Is the Difference Real?
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B Explaining the Lack of a Visible Edge in Shadows of Clouds over the Sea
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B Why is there a node in the middle of an open-open tube?
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B If you condense an atom, would it make a black hole?
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B Launching a Juice Company: Seeking Advice on Slush-Ice Production
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The Forgotten Anniversary: 100 Years since Emmy Noether's Theorems
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B Tablecloth Trick: Explaining Newton's Laws
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I Should the Wave Equation for a Longitudinal Wave Include Time?
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A Fatigue stress concentration factor (Kf)
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Why can’t gas support a solid body?
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I Question about subtractive color mixing
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B How does the Doppler shift explain changes in photon energy without interaction?
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A Solving Maxwell's Equations for Electric Field of AC Wire
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I What physical phenomena is this?
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B What are the Most Popular Topics in Physics?
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I Noise level at high-rise buildings
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B Warm air goes up....reason on a microscopic scale?
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I How Are Base Vectors Defined in Covariance and Contravariance?
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I How Does Gauss's Law Apply to an Infinite Charged Rod?
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A What was so extraordinary about Landau damping?
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I How Do Vortices Form in Fluid Dynamics?
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B At which point is gravity the strongest?
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B How Does Gravity Influence Energy Production in Hydroelectric Generators?
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B How fast are the the protons in the large Hadron collider?
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I Force applied to a sphere off center of mass
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I Only certain emission lines show up in absorption spectrum
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B Reading properties from a steam table
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B Why are aurora always in the vicinity of Earth's poles?
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I Calculating Recoil Forces in Firearms: How to Choose the Right Damper or Spring
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B Phase difference in a transformer
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B Why do we have minimum deviation of a prism?
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B Why do objects have internal energy?
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I Where Can I Find Data on the IR Transmission of Silicon and Germanium?
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B Equations that describe ideal gas processes
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I Force/P. energy functions for weak, strong interactions
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I Cathode-ray tube: Error in a book?
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This wikipedia article on the standard model is really good
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B How Is the Coefficient of Restitution Linked to Conservation of Energy?
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I How to Calculate Work for a Time Varying Force?
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I Fried round potato slices' shape....
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B Maintaining the same flow rate while subdivding a tube
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A What type of chamber and material would be required?
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B Archimedes' Principle for gases - derivation?
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I Weird Lamp Effect: Investigating the Mystery of Fringes
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B Why doesn't wood melt while ice won't burn?
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I Guitar Playing and Standing Waves
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I Understanding RC Band Pass Filter Graphs
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I I can’t understand the derivation of the formula Cp=Cv+nR
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B How can Closed Timelike Curves be made?
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B Understanding the Physics of a Ceiling Fan: Basics & Beyond
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B Is the lift generated by a hummingbird's wings an example of Newton's Third Law?
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B Are Mass and Matter Distinct Entities in Particle Physics?
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I Are Planck Units Merely a Pop-Science Fad?
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B How do you calculate the uncertainty in T using graphs?
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I Black Body and the colored objects around us
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I Do Fundamental Physical Constants Truly Remain Constant Over Time?
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B What makes the Navier Stokes equation so difficult?
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I Is it possible to use the vacuum to launch a rocket?
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B Time it takes to convert one form of energy to another?
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Which is the best conductor? Silver or gold? Why?
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B Are black holes infinitely dense?
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B Gravitational Wave Communication System
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B What makes a material an insulator?
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I 2 sign questions related to the wave equation
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B Unusual question about video experiment on YouTube
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I Understanding of gravity in the Middle Ages
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B Direction of the force on a conductor in a solenoid
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B Reason for black gel pen refills leaking in winter
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B The Hunt for Red October's Catepillar
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B Overview of identification methods
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B What is the Effort in a Hand Holding a Tray?
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I Is it physically possible to climb up a building like this?
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I If a rock fell 20,000 meters to Earth Question
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B A Question about Charging by Conduction
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I Splitting force vectors into components
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I Does the Poisson Equation Have a Unique Solution with Mixed Boundary Conditions?
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A Two-Body-Problem with Changing Mass
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B Can Antimatter-Matter Be Used as Rocket Fuel?
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B How to calculate the distance that a bungee will extend....
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B Exponential decay convolved with Gaussian
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I Can a bicycle be tipped over by only applying rear brake?
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I Ferrite Rod Antenna: Understanding How It Works
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I Divergence of ##\frac {1} {r^2} \hat r##
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B Energy and Matter: General Relativity Explained
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I Can Physics Laws Exist in Different Dimensions?
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B Can we build a microscope to see an atom?
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B Will we be able to visit other solar systems anytime soon?
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I Matter density on the bottom of a liquid container vs hanging in the middle of it
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