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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 Why Does Matter Become Solid When Observed? Max Planck's Theory
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I Where to Buy Meta Materials for Scientific Research?
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B Upthrust & Floating: Confirm Position in Liquid
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B Is distance continuous or "pixel" like?
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B What is the recommended method to reduce gamma ray exposure?
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I How Has Mathematics Predicted Major Scientific Discoveries?
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B Density of air experiment, why it yields these answers?
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Looking for a high vacuum 8" conlfat, any suggestions?
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I Why Does an RL Circuit Use a Negative Sign in the Inductor Term?
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A Concepts required to define a "system"?
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I Uncertainty Principle: Energy of Unstable Particle?
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B Locate and Eliminate Mosquitoes with Mosquito Radar
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I Explaining Music Notes Consonance with Wave Functions
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Amplitude of Piston in Horizontal Cylinder
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B Gravity & Wave Forms: Interactions Explained
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B Energy Q&A: Is Electromagnetic Energy the Only Type?
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I Angle of repose - Trying to understand the formula
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I EMFs, what energy comes off items? How to explain?
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B How Dangerous is Plutonium in Real Life?
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B Why Doesn't a Helicopter Drift Away as the Earth Spins?
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I Calculating LED Efficiency with Radiant Power and Temperature
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I Is the Dot Product of Unit Vectors Related to Magnitudes and Angle Between Them?
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I About comparison to experimental reference values
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I Can viewing distance be used to measure eye strain?
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B "Force Coupling" and "Force Decoupling"
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B Can Magnetic Fields Control Gravity?
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B How Are Images of Gravity Dips in Space Created Without a Sense of Direction?
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I What is the standard unit of mass and why is it defined in terms of an artifact?
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I The Road to Reality by Roger Penrose
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B I need the name of this equation for my IA?
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I Is the Drake Equation a Reliable Tool for Estimating Extraterrestrial Life?
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I Help please -- Seeking clear definition of fundamental terms
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B Is it true that objects cannot touch each other?
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I The ##1s^2## configuration of helium can't be triplet state?
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B No intensity drop if slit width is negligible in double slit
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I Is Artificial Gravity Created on the ISS Due to Tidal Locking?
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I Contact Patch and Friction: The Impact on Stopping Distance
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I Measuring advancing contact angle
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B Why technology & science progress slow / slower than sci-fi?
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I Resultant force after adding a force to a couple moment?
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I Why Planck's Constant Has Dimensions and a Unit?
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B Question concerning mass effect
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A Why Doesn't IV Flow Rate Increase Through a Constriction?
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B What does the multiplication between two units mean?
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B What is a homogeneous boundary condition?
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B How to improve problem solving skills
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B Why Does Mercury Enter Water in Andrews' CO2 Experiment?
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I Solve Physics Problems: Splitting Algebraic Equations | Step-by-Step Guide
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B Calculating Linear and Angular Quantities from Applied Force
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I Parts per million of vapor above a liquor in a sealed jar
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I Can different forces cancel themselves?
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I Divergence Theorem not equaling 0
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I 4 vector upper and lower indices
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B In a Full-wave rectification plus smoothing
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B Calculate maximum safe volume for headphones
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I Understanding Fourier Transforms
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B Why do radioactive materials decay in half-lifes?
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I Where does the energy come from?
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Mathematical model of a phenomenon
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I How does a floor mat dissipate noise/vibration?
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I How Do You Convert 250 Degrees to Radians for Resultant Forces?
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B Modal Analysis & Mode Shapes: Real-World Applications
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A Casimir effect and dimensional analysis
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I Kepler 3rd law for circular orbits
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B Is Scientific Theory Subject to Change Over Time?
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B Publication Bias and Replication Crisis
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I Hurricane Mathew: Force of Wind & Its Impact on People
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B Dropping a Black Hole from Tower of Piza
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B Need confirmation of planetary distances
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I Understanding Lyapunov Exponent: Why Do We Use an Exponential Function?
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B Why Does PΔV = nRΔT Hold True in Some Isobaric Processes but Not Others?
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I Why do some but not all derivatives have physical meaning?
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A Relations between statistical physics and theoretical CS
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I Does a humam body movement generate a vacumm trail? and more
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B A statistical definition of Young's Modulus?
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A The information about the curvature on the rest
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I Non-reversibility of '2nd Law' processes
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I Is Fermat’s principle appicable to a plane wave?
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B Net force on 'ground' with object on top of it....?
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B Line absorption spectrum and stars
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I How do I determine the proper ratio of CO2 and N for my tank?
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A I need to understand the following E&M points
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B What Makes the Six Colors in Newton's Experiment Special?
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I Where do the missing minutes in a live feed from a spaceship to Mars go?
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I What is the Relationship Between Amplitude and Speed in SHM?
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I Phonon energy in absorption of indirect band gap
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I Isn't the force calculated twice?
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How can I make singular matrix become nonsingular matrix?
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B How can a permeable piston be adiabatic?
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B Your Opinion On This Solar Cooker
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I Invalidating a patent directed to physical laws
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I Chernobyl Dose Model & Estimates
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Insights Struggles With the Continuum - Part 1 - Comments
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What does it mean when we say something exists in physics?
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I Can internal energy be calculated from equation of state?
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B Question about a bob held by string in a bell jar spinning
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I Quarter-wave plates and Half-wave plates
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I Why does water care about the density of objects on top of it?
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I DIY Heavy Bag Base Calculation: How Much Weight Do You Need to Prevent Toppling?
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I Huygen's principle in practical sense
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