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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.
Recoil of bullet passing through firearm barrel
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Understanding Virtual Objects: Formation and Characteristics
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Relating Behaviour of a Driven System to the Undriven Modes
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Meissner effect and levitation
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Variable resistor and thermistors?
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Building a Fulcrum for Aladdin's Carpet: Torque & Weight Requirements
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Have I Labeled 1/f=1/u+1/v Correctly?
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Is This Theorem for Calculating 2D Distance Original?
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Do black objects get hotter than white objects in the sun?
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What Do Symbols 'R', 'S', and 'b' Mean in Aerodynamics Equations?
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Understanding the Sun's Role in Warming the Earth
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Center of Curvature: PhysicsClassroom.com
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1 mol of paper - how much is that?
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Moment of Inertia: Is it an Unambiguous Body Inertness Characteristic?
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Units Mismatch in Analytical Mechanics Textbook
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Is Every Physics Equation a Field?
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Normal force: two boxes with different mass?
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How to get equation for overdamping
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Constant Scalar Field: Meaning & Relationship to Surface S
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What is the general definition of emf?
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How to convert magnus effect from 2d to 3d?
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Is the Transformer in My Adapter Damaged? A Question for Physics Assignment
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Can I Reach the End of a Rainbow with a Shovel?
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Conceptual Question Involving Fluids
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Calculating the latitude/longitude from known distance
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Why Are 488nm LED Options Hard to Find for Cell Sorting?
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Life and matter in exotic spatial conditions
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Equator and perpendicular bisector
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Capillary Action, Are there structures that aid it?
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How are proportionality constants in physical relations determined?
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Can Non-Destructive Methods Stop a Giant Asteroid from Hitting Earth?
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Easier description of fictitious forces?
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IR LED irradiance, radiant exposure and radiance
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Intuitive interpretation of some vector-dif-calc identities
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Are time machines possible? (serious)
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PSI & Buoyancy: Container Air Pressure Effect on Sink/Float
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Complex Vectors vs Normal Vectors
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Simple vector addition question
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Neutron cross section in fission
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Waves Coming Ashore Everywhere: A Universal Mystery
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Does the Planck Unit of Time Support Julian Barbour's Theory on the End of Time?
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Counterintuitive Results in Conduction Cooling Model
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What is the formula for the first moment?
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What is the Relationship Between Time and Matter?
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Kirchoff's Loop Rule ∑ΔV=0 question
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Costliest physics material on earth?
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What is difference between vortex panel method and source me
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Is Randomness a Myth in the Universe?
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Getting from non-imaginary to imaginary
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Calculating Resistance of Y with X & Variable Resistor
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Looking for free downloadable articles on primordial He
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Where is the mistake in this solution
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Estimating and Calculating Uncertainties
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Generating & Emitting 50-100 Petaherz: Tools & Possible?
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Coupling Xe Arc Lamp into Fiber Bundle
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Got asked, "Why does there 'need' to be a UFT"
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Trigger for a Zn oxidation reaction in a battery
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Voltage in RL Circuit Series: Why?
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Can You Solve This Infinite Grid of Resistors Problem?
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Which Battery Configuration Produces a Brighter Bulb?
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How did the Poisson brackets get derived, and from what.
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Anything that does not depend for energy
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Logical explanation for quantization
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Why Do Astronauts Feel Weightless on Their Journey to the Moon?
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What is String Theory? | Stringtheory
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Is This Theoretical Physics Book Easy to Learn?
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"Attraction Force x Energy Accumulation" clarification
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A Physical Situation Which Physics Rules Collapse
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What Am I Missing About Kirchhoff's Law in LC Circuits?
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Batteries in Series: Understanding Voltage Addition
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Is this a eureka moment? .how do we know atoms exist?
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Ideal Gas Law - Adding additional gas & additional question
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Gravity & Matter: What is the Connection?
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QFT Cutting Rules: Improved Versions & Worked Examples
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What is the meaning of unbound in the context of half-lives of nuclei?
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Do back force and back emf come together?
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What density do I use to calculate buoyancy for a hollow cylinder float?
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How the wedge is connected with string
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Why isn't Landau credited as an author in Vol 4?
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Gas confusion -- cooling air in a pipe using venturis and mixing
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Humidity definitions and measurement devices
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Fully developed flow, Reynolds number
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How Does a Neutron Star Affect the Mass of an Object Falling Into It?
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How Is Drift Calculated in River Boat Problems?
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Unveiling the Mystery of Invisible Spider Webs
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Riddle Me This: Vibrating at Light Speed & Time Travel
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Understanding the Euler Lagrange Equation and Its Boundary Condition
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Understanding without using math
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Do All Elements in the Universe Have Mass?
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Back emf in a single loop of wire?
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Law of continuity problem in fluids
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How Are Hamiltonian and Lagrangian Related in Quantum Mechanics?
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Understanding the Direction of Acceleration in SHM: Mathematically Explained
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Thevenin and norton theorem question
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Is there a specific field for studying energy transport and conversion?
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How many orthogonal spins can an object have?
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Understanding Skin Depth in DC and AC Fields: Confusion and Clarification
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How can we explain continuous absorption / emission?
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Is My Vehicle in Danger of Sinking if Water Enters?
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Errors & Consistency: Finding Agreement
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