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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.
Will a black hole revolve around a non-black hole object with greater mass?
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Ray Tracing Rules: Concave & Convex Lenses & Mirrors
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Is it possible to build a vertical particel accelator?
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Why stars blink and planets don't
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Energy in standing waves and nodes
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Where Can I Find a Comprehensive Chart of Metal Conductivities?
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D4h Symmetry Group: 9 Normal Modes of Vibration
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Converting Between PPM and Flow Rate for Gas Leak Detection: Expert Guide
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Searching for A. MacColl's 1944 Paper: Help Needed
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Standing waves demo using a string
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Smoke Signals vs Sound Signals - Propagation Distance
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Wiring Query: 24V 3W Light Bulbs for Christmas Decoration
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Earth-like Gravity: What Effects on Small, Dense Objects?
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What's it like if I were standing on earth's axis?
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What Math Should I Know for Classical and Quantum Mechanics?
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The math or physicality, wich one leads?
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Proving EM Doppler Shift Ratio: v/c = (r^2 - 1) / (r^2 +1)
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How Does Precession Keep a Spinning Bicycle Wheel Upright?
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What is E=mc² What is it used for?
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Why Do We Appear to Lean Left on a Curved Bus Ride?
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PF is a resource for questions about Peskin & Schroeder
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Why Do Things Spin? Solar Systems, Planets, Galaxies
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Calculating Distance & Energy for Explosion to Moon
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Physics Formula for Competitive Exams (Eng & Hindi)
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Sorry if this is too basic but we've all got to start somewhere
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Aircraft Simulation for beginners
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Can We Take the Derivative of a Unit?
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How Does Time Influence Velocity in Different Scenarios?
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Using DC Power to Create Electron Flow in a Tungsten Filament Light Bulb
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Does Driving Uphill at Constant Speed Use More Fuel Than on Flat Terrain?
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Can there be more than Four Fundamental Forces?
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An old theory of mine was scientifically proven recently
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How to describe the 4th dimension?
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Remmendation of book for a freshman
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Equations for Human Body Movement: Can Anyone Help?
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Questions on Mechanics: Why is Tension at End of Whirling Rope Zero?
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Highest point an object can travel?
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What Does Relative Really Mean and How Is It Used?
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How Does Heat Conversion Differ from Magnetic Energy Conversion?
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The answer of a 2 sig calculation 0,098 = 0,10 ?
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Why Are 2 Bulbs in Series Dimmer Than in Parallel?
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Understanding Attenuation Coefficient of X-rays: Gas, Liquid, or Solid State?
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Why Does Photomultiplier Tube Emit 2 Electrons?
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Mass Spectrometry: Determining Unknown Radiation Properties
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Verification of inverse square law using photocell is straight line
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Can Air Be Compressed Without a Container?
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Measuring airflow w/handheld anemometer
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Will the CFM be the same in straight and bent pipes?
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Why does looking at things from a small hole make it more clear?
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Time dilation in relation to earth time
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The title could be: How Do Colors Appear on a Birefringence Chart?
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Does heightening a sofa increase strain in the centre?
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How Was the South Korean Naval Ship Raised?
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Why do ions flow from high concentration to low concentration?
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Nonlinearity of Piano hammers help
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Area of Square Box: 16 m² (1 Sig Fig)
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What is Buoyancy? - Learn about Newton's 3rd Law & Vacuum Filling
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Oxygen-Free Oven: Effects on Objects & Chemicals
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Why Does a Car Wheel Spin Backwards at High Speed?
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Is there such thing as rest mass.
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Does it take a long time or a short time for gamma rays to reach the photosphere
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Q: Can Matter Be Converted to Energy with 100% Efficiency?
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Single Body Gravitation in a Universe with Only One Planetary Body
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Is it Taylor Dispersion or Something Similar in Drug Injection?
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Why don't race bikes have a high CoG?
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Energy Conversion: Where Does the Energy Come From?
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Where is Infinity? Answers to Unsolved Mysteries
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Van der Waals Equation: Calc a, b Theory?
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Lenz's Law and Energy Conservation
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Antimatter is just matter that is traveling backwards in time
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How Are Convolution and Deconvolution of Phase Diagrams Explained?
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What Lies Beyond the EM Spectrum?
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How can I calculate the amplitude of a wave using frequency and energy?
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Do You Have to Countersteer to Turn a Motorcycle?
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Questions regarding exotic weaponry based in the new physics .
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Microscope field of view & depth of field/focus (confocal microscopy)
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Force needed to reach Lagrange Points
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I accidentally dropped a 1 kg object on the ground
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Is Physical Contact Really Possible or Just an Illusion of Forces?
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Position Derivative of Acceleration Due to Gravity
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Questions on physics articles in journals
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Salt Melting Ice: Heat & Cooling Effects
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The 4th Dimension: Learn About It Here
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Can You Travel to America Through a Hole in the Earth's Core?
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What are the nodal points on a guitar string when plucked?
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KE of Gas Molecules: n, KbT, U, and 3/2R
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What is the amplitude of the subsequent oscillations?
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General Physics Help - Questions on E=mc^2 & Train Mass at Light Speed
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Attracted to the opposite side of the earth?
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Debunking Time Travel Speculations: The Truth Behind Going Back in Time
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Why Do Vacuum Tubes in CRT TVs Get Hot Despite the Vacuum?
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Why Do Star Systems and Galaxies Flatten in the 3rd Dimension?
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Rectifying an conventional error
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The Consequences of Nuclear Detonation in Volcanoes
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Why Does a 3D Body Turn Differently Based on Force Angle and Propulsion?
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Right hand palm rule and right hand clasp rule
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Designing Circuits with Multiple LEDs and Different Voltages?
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An extremely Novice energy question
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Audio, how to make microphone unidirectional?
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Is Antigravity Possible with Negative Energy Density Matter?
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