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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.
Great Circle Path: How Crows & Radio Waves Move
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Derivation of formula using dimensions
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Equation Q: Ma=T-W & Ma=W-T | Tension Differences
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Understanding Propeller Speed: Explained for Beginners
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What is the Net Force on M1 in Terms of T, g, and m1?
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Why Does Time Seem to Slow Down When Checking a Clock Mid-Tick?
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Hamiltonian Systems and Liouville Integrability
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Understanding Power and Energy Calculations for Electrical Output
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Gravity & Atraction: Questions about Earth's Orbit
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Calculating Thrust for Rocket Weight & Altitude
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Q about phyiscs of Liposuction (and Sonolumensence)
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Some quesitons about Sun and Earh
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How Many Significant Figures Does Physics Agree On?
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How Does a Tilted Force Table Impact Vector Equilibrium?
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How and why does everything in life reach equilibrium?
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Drinking Water from the First Floor with a Long Straw
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Uncertainty in Measurement (Question)
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Is energy always positive and dependent on observer's frame of reference?
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Efficiency of Pendulum: Factors Affecting Amplitude
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Experimental Values vs. Theoretical Values
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Is Energy Really Just a Force that Moves Objects?
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What are the fundamental information-processes in physics?
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Need Info: Bi2Te3 Crystal Structure, Grain Size & Lattice Parameter
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Can the Bohr Model really prevent electron energy loss?
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How Does Changing Inertia Affect the Dynamics of a Three-Flywheel System?
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Identifying Sounds: Apparatus Needed?
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Expert Help: Does this physics simulation appear realistic to you?
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A room with a stronger gravitational force?
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Clarifying the Relationship between A and B
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What comprises the mass of the earth?
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Why is there a shine around the moon at night?
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Angels & Demons - The anti-matter bomb
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Is Gravitational Interaction Affected by Different Shapes of Bodies?
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Gravity Simulation: Consistent Rotation Pattern?
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Four Dimensions: The Key to Understanding Existence
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What is the meaning of the sum of tan A and rad A?
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Is molten iron a good conductor of electricity?
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Why Don't We Feel the Earth's Movement When We Jump?
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How to Determine Significant Figures in Multiplication/Division?
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Trying to find some rheostatic fluids
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Is the component of a vector still a vector?
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Diagonalization of large non-sparse matrices
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Why is Glass Transparent to Photons?
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Action & Reaction: Point & Extended Body
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Physical meaning of multipication?
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Propelling Vehicles with Light: A 15-Year-Old's Idea
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Gravitational force: action and reaction
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Grab a bag of sugar and say this weighs 1KG
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Are Grain Dust Particles Explosive Due to Static Electricity?
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Zero Force Propulsion: A Futuristic Concept?
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How Efficient is an old-style coal-fired steam boiler?
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Is Planet X Real and Could It Impact Earth?
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How Does Hot Air Rise and Affect Weather Systems?
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Meters to the -3rd Power: 5.1*10^-5m
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The hyperbolic tangent function and physics
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What is Intensity of Ray? Where to Get Info?
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Is v=f lamda true in every circumstance?
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Off-axis Explained: What it is & How it Contributes to Comatic Aberration
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Gas compression and Interaction with Fluids
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Which Definition of Physical Quantity is Clearer and More Accurate?
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How Does Gravitational Force Influence Ocean Tides?
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How much Energy exacltly is an MeV?
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What Are the Applications of Associated Legendre Functions?
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Is there a name for this equation?
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Safety of Touching Charged Sphere on Insulating Stool
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Where Do the Atoms for a Fetus Come From?
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How Can I Optimize the Moment of Inertia for an Out-of-Balance Load?
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Absorption line spectra and emission line spectra
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Endothermic Paint: Absorbing Heat and Keeping Cool
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Can anybody let me know in detail about time and its measurements.
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Is or can gravitational force become cumulative?
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Is law of universal gravitation really correct?
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Moon's path/orbit - is it changing?
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What is the fourth variable in the 4th dimension?
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Projector with the greatest projection angle
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Giant Straw: Will Earth's Atmosphere be Sucked Out?
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Is the Speed of Light the Same for All Electromagnetic Frequencies?
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Gyroscopic Propulsion: Could Gyroscopes Levitate Objects?
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Is gravity affected by mass on the earth?
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Coffee grains are hard to clean up
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Why do coffee grounds fly out of the grinder?
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Compton Edge and Gamma Spectroscopy
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Why Is My Gradient Too Small in the Young's Modulus Experiment?
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Q: Pilot in a Plane - Which Ball Hits Ground First?
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Pilot Gravity: Which Direction Feels Most Gravity?
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Calculate Acceleration Due to Gravity on Moon - 65 Characters
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Launching a Penny Accurately - Advice Needed
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Aeroplane & Cloud Mysteries: How Planes Pass Through Clouds
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Properties of Vacuum: What Is It Made of?
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Wondering how to wire led series
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The Fundamentals of Gravity: Examining its Place in Nature
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What are some specific examples of emergence?
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The difference between Burning and Exploding
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Unbelievable: Motorcycle T-bones Ford Expedition
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How Does a Narrow Slit Affect Laser Beam Divergence?
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Solve Physics Problems in Your Homebrew Video Game with These Tips!
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Collection of free physics and mathematics video lectures
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The science of flying molten tungsten
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The turning effect, what is actually physically happening that causes it?
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Why do surfaces get darker when they are wet?
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