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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.
A Can someone explain this statement on luminous transmittance?
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I What happens when an explosion occurs on the surface of the moon?
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B Are there any unsolved physics problems?
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I Why is not possible to store electric energy from a Lightning?
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B How would physics change if Planet 9 were a primordial black hole?
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I Superconductivity energy saved v Cooling/Heating energy loss
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B Information sources and physics teaching
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B Quanta Magazine Video on Biggest Breakthroughs in Physics in 2023
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I Maxwell's equations and the momentum of charge
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I Would aluminium foil increase copper tubing insulation?
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Does the Universe have a finite number of fundamentals to uncover?
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A Effects of magnetic fields on material (Magnetic resonance)
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I Lost Energy from a Reciprocating Piston
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B How does mechanical motion start at the deepest, smallest level?
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I What is the Uncertainty in the Total Weight of a Collection of Similar Items?
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A Correcting units from this physics paper?
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I Confused about unit conversion involving natural units
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I How to calculate incident light on surface with multiple orientations?
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A Photon Bouncing during APD Dead Time in Autocorrelation Measurement
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A Unsolved Problems in Near Surface Geophysics
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I A question with regard to Hooke's and Kepler's laws
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Time crystals: They require energy added back into them?
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I Coherent two-photon lidar...does this mean lidar range is greater?
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B What Is the Fourth Dimension and How Does It Work?
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B Where the extra energy comes from?
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I Integrity of matter / space and time
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I Data collected from different devices: how to combine for analysis?
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I How Do ICBMs Accurately Reach Their Targets?
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B Why is my small Bi-2223 superconductor not levitating or locking above magnets?
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B Why Do Some Toxins Persist Despite Chemical Reactions?
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I Making LED bulbs safer: Health and LEDs
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I Trying to understand the inner workings of a solar cell
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B Temperature of container, temperature of contents
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I Radiant Intensity from Radiant Power and Intensity Distribution
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B Is it possible to boil water by stirring it?
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I What can we scientifically measure directly?
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B Can we use a permanent magnet and a copper rod to create an electret?
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B Why is the test charge always positive?
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I Exploring Link Movement in X-Y-Z Axis: How Does This Linkage Rotate and Yaw?
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I Restoring S.I. units to a Lagrangian in natural units
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B Which science communicator do you find to maintain the most accuracy?
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I De Broglie Wavelength at rest: λ = h/p = h/0 when v=0?
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I Question about electromagnetics (waves and particles)
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I Questions about deriving generic equations/laws from specific equations/laws
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I Existential problem on Electromagnetism and the combination of Relativity and Quantum Mechanics
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B Is a 0.040V Reading on a Strain Gauge Before Force Applied Acceptable?
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I Looking for a unified expression for energy in rotating systems
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I How was electronics propagation delay measured historically?
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I Applications for negative radiation pressure?
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I Flow rate calculation for laser cutting nozzles
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B Does Microwave Energy Transfer Depend on Contents Inside?
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I How can tomographic image resolution be obtained using wifi sensing and imaging?
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I The best way to keep an office cool in the hot summer
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B Need help with understanding time travel
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B Why is the electron the only particle dominating technology?
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B Where Do Electrons Go When a Battery Loses Charge?
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B The Mystery of Blackbird: Exploring Wind Power Leverage
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The effects of absolute zero temperature
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B What Are the Project Goals for the Jiangman Underground Observatory (JUNO)?
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B Moist air - does it rise or drop?
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B Is Time a Fundamental Force in Physics?
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B Is a Brain Wave Actually a Wave?
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I Where can I find explanations about physics applications in real life?
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A SiC Vertical MOSFET channel length modulation
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Meaning of Multiplication and Division in Physics
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I Mass, Energy and a compressed spring
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I The multimeter is not displaying mv of strain gauge in circuit
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B Question about real world examples of 2.7 megajoules
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B Questions about the Universe: Positive & negative fields and effects
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B Looking for help understanding string theory
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I A simple way to vizualize non-linear waves with a star Slinky toy
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I Entropy Real? End of Time? - Veritasium Video
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B Frequency of EM Waves from Monitor for Black/White & Color Images
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I Velocity of a given planet relative to the Galactic Center
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I Is the position vector a real vector?
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A Monte Carlo simulation for the classical isotropic 3D Heisenberg model
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A Fourier coefficients relation to Power Spectral Density
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B Why Does the Bathroom Have the Highest WiFi Signal Attenuation?
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I Analog to Biot-Savart for E field
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B Is Ice-Nine a Real Substance or Just a Fictional Creation?
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I How is the Reynolds number derived (is my derivation wrong)?
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I Clarification required for some equations in the formulation of ideal Bose gas
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B Thermal physics, COP upper bound for heat driven heat pumps
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A Plotting Potential in Plasma Sheath
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B Questions about climate and physics
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Can an iPhone placed inside a water tank receive wireless LAN signals?
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B Prism Camera Lens: Expanding Visible Light Spectrum?
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B In the equation x = x₀ + vt, 'x₀' means what?
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B Could solar sails be used as turbines for power generation?
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I How Do Helmholtz Coils Affect Electromagnetic Beam Transmission?
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I Unidentified Luminescent Phenomena (ULP)
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B How did fundamental charge thinking develop?
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I Gravitational field modulation of a moving mass
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B Gravity waves and Planck's constant
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B Entropy & Information Content: Examining the Difference
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I Is the light from Andromeda truly blue shifted?
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I Atomization and Evaporation: Understanding the Energy Exchange
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I Uncovering the Forces on Drum Lugs: An Engineering Design Exploration
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B Heat transfer -- Several questions
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B Head or Tails: The Question of Determinism and Probability
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Physics

Physics is the scientific study of the fundamental principles governing the behavior of matter and energy in the universe. It explores the nature of space, time, motion, forces, and the interactions between particles and fields.

Physicists seek to formulate laws and theories that describe the fundamental forces shaping the cosmos, from the microscopic world of subatomic particles to the vastness of galaxies. Divided into classical and modern physics, the discipline encompasses mechanics, electromagnetism, thermodynamics, quantum mechanics, and relativity.

Physics not only provides a framework for understanding the physical world but also drives technological innovations, shaping our comprehension of reality and inspiring advancements in various scientific and technological domains.

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