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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.
Can glass really break into tiny harmful dust particles?
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What kind of physics is involved in computer production?
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Circle/Sphere Touching: Perfection & Friction
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Is the Upthrust Equation for Fully Submerged Objects Incorrect?
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Fission Reaction: How Many Neutrons Needed for Chain Reaction?
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Propagation of EM-Waves, Independence of B and E, and Grav...
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Did Lord Kelvin Say "If You Can't Measure It, It Isn't Real!"?
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B Any Interesting Problems I could try to solve?
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Center of Mass of Non-Uniform Rod Using Piecewise-Defined Function?
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Complex numbers sometimes *Required* in Classical Physics?
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Calculate length of wire needed for solenoid
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Thermionic Emission Effects on Surfaces
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Understanding the Amplitude of Current in Halliday's Book
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Why Is It Harder to Pull a Fish Out of Water as More of It Emerges?
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What is the method for deriving Stokes' law for drag around a sphere?
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Does a Gravity of a planet determine density?
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Why is Hot Air Lighter than Cold Air?
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Does Past Exist? Conway's Game of Life & Time Travel
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E=0 inside the conducting sphere Always?
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Can someone please explain what plate-out is/means?
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Derivative of lagrangian density
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Why Does a Compass Needle Align Perpendicular to a Current-Carrying Wire?
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Layman explanation of some simple EM equations
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Proving Euler Lagrange equations
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Can Light Bounce Forever in a Vacuum Bulb?
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Equation for Damping in an Ideal Mass-Spring System
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Time Derivative of Force: What is the Missing Variable?
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Wanted: Looking for a helmholtz coil in Brisbane, QLD AUS
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Calculate force in north/east directions given 2 components
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What would walking the Klein Bottle look like to a 3D being?
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Could floating cities become a reality using rocket boosters?
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Gauss' Differential law intuition
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Why Does Wave Energy Depend on Frequency and Not Wavelength?
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Are Physical Theories Dependent on the Extended Riemann Hypothesis?
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Travel 5 Meters in 1 Second: Explaining d=vt+1/2a(t)^2
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The Role of Theories, Models, and Laws in the Scientific Process
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Surface type and emission/absorption
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Basic Questions on Time Dilation Implications
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Buy Small Superconductors Online | Explore the World of Superconductivity
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I If air is a mixture, why don't the gases separate?
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Why is clear glass see-through but not completely invisible?
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Does this wave propagation problem make physical sense?
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Solving Uncertainty in Lab Report Calculation
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Could a Pulling Airplane Propeller Be More Effective Than a Pushing One?
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Unusual Math Formulas on Blackboard: Understanding Pi and Lambda
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How Can I Test the Cooling Capacity of My Liquid Cooler?
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Calculating/simulating effect of mass changes in a gyroscope
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Finding Uncertainty Using Upper/Lower Bound
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Why is the equation for a particle's wave function given by ##\nu = E/h##?
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Amp vs. USB: Understanding the Truth About Voltage and Resistance
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Are all physical quantities an equivalence relation?
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How do physicists approach dimensions higher than 3rd?
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Why do we need in-phase & quadrature components of a signal?
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Why Aren't Laser Beams Bent More When Measuring the Moon's Distance?
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What is the Force Generated by a Rotating Rod on a Square Plate?
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Does a Big Defensive Bark Drain a Dog's Energy?
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Missing something obvious in this derivation
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Adding Vector Problem: Is There More?
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What is the equation of continuity?
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Understanding Magnetic Field in Length Gauge
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What does Hinge Reaction signify ? How do i calculate it ?
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Explaining the Proton-to-Electron Ratio in the Periodic Table
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Finding force vectors of gravity along a curve
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Does a flame mantle get "wetted"?
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Looking for formula for lateral and/or eccentric loads
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Gravitational Force (F) Undefined: What Does it Mean?
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Vacuum Chamber Demo: Investigating Temperature & Humidity Changes
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Why do E and G both degrade by 1/r^2?
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Discovering the Secrets of Second Sound: Cooling to 2.5 mK in Superfluid 3He
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What, really, is the Variational technique?
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What allows certain wavelengths to pass through walls ?
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Flummoxed by a Freezer: A Puzzling Noise Mystery
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Why Do Waves Oscillate Like a Pendulum?
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B Do curves, circles and spheres really exist?
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Which Value to Use: % Discrepancy or Standard Deviation?
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Gravitational Field: What Would Happen?
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Can two perfect point monochromatic sources be incoherent?
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The spin of an entity, an additional (4th/5th) dimension?
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Gravitational Effect of Uniform Mass on Earth's Surface
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Do We Ever Truly Touch Anything?
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Why Do Aerial Images of Earth Appear Blue Despite Equal RGB Scattering?
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Understanding First Ionization Energy for Diatomic Gases
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Unable to understand vector derivative
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I Way of producing 600kHz longitudinal waves - Piezo or siren
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Rate of Evaporation: Experiment Ideas & Thoughts
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Why orange color is visible with blue LED?
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Is Temperature Truly Quantized at Absolute Zero?
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What Is the Difference Between Atoms in High and Low Fields?
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Can Earth Rise Upwards to Touch an Apple?
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Creating a Home-made Vacuum Chamber
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Shock absorbent material to protect an egg
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How correct are these concepts about circuits?
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Vector Force - Supporting Vs. Hanging
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Are Mass and Energy the same thing?
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What are localised and non localised fringes?
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Delaying a signal 180 or 90 degrees
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Linearising Graphs: Need Help with Height vs Velocity Relationship
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What is the Exact Meaning of F=dp/dt?
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The Sun's Fire: Low O2 and Carbon Emissions
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What is the Direction of Magnetic Field Lines?
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