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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.
I What does the term "Typical Wavelength" mean in this context?
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I Why Does Subtractive Cancellation Affect Measurement Precision?
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Classical Mechanics Monographs: Re-Discovering Whittaker's 1917 Problem
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I Circus physics problem (chinese pole)
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I Doesn't the atom in ground state radiate?
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Einstein Refrigeration: Constructing the System with Limited Knowledge
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I Fixing Ship Ramp: Winch vs Windlass
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B Does an orbiting mass exert force on what it is orbiting around?
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I C Could a Jet Helicopter with Wings Fly at Supersonic Speeds?
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B Defining a Vernier Caliper when a reading is already showing....
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How Fast Must a Grasshopper Jump to Reach the Other End of a Straw?
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B How Can I Measure Lumen, Efficiency, and Color Temperature of a Street Lamp?
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B What Are the Dimensions of kWh?
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A Is "Equal a priori Probabilities" the correct scientific approach?
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I Analytical Open Channel Rectangular Fluid Flow
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A What is the relationship between focal length and focus point in convex lenses?
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B What Happens to Volume Change Ratio in Caesium When Pressure Exceeds 1.6 GPa?
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I How Is Summation Changed to Integration in Reif's Statistical Mechanics?
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I Center of Mass of a jetpack-Earth System
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Chief Ray Angle and Field of View
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B Confusion about the Strain Energy when loading/unloading a sample
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B Question about the term "frozen"
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B Phases of Matter: Solid, Liquid, Gas & More
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I Typo in elliptical orbit energy derivation?
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I How was the speed of light calculated before the redefinition of the meter?
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I Van Allen Belts: why are they where they are?
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B Movement in a Vacuum: Does Acceleration Show Anything?
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I Isn't planetary rock dating really supernova dating?
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B Phase change or not: oil in the refrigerator
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I Subsonic and Supersonic Airflow Through a Constriction
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I Do two perpendicular wires exert a force on each other?
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Number Precision When Adding/Subtracting
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I How Does Gravitational Jerk Affect Acceleration in Space?
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I Simple harmonic oscillators on floating object in liquid
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I What is a realistic image of quarks?
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B Why is the height of a liquid not affected by the radius of a U-Shaped tube
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I Is this proof regarding massless strings correct?
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I Damped Oscillations: Does a Pendulum Ever Truly Stop?
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I Grounding Process: Neutralizing Negatively Charged Objects
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I Wave conventions: E(x,t) and E(t), E(x) confusion
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A The Oberth effect and multiple orbits
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B Long term sustainable energy bounds
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B How a Secondary Resistor affects the Transformer Primary Side?
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I What are the physics behind a bell siphon in an aquaponics system?
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B Prism Forming Image: Nature & Types
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B Need Help Regarding a U Shaped tube problem
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B Can the same formula be used for both water and mercury manometers?
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I Showing that planets follow elliptical orbits
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B Constant Off-Center Propulsion (without gravity)
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Energy released upon ionization of different gases
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I Cooking Physics: 2 TV Dinners at 350 Degrees
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B Understanding gravity: mass and gravity relation
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B Irradiance: difference between distance and the square of the distance?
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B Inverse Square Law: Voltage/Current Graphs
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I How to change the color of an LED?
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B Effects of Cooling and Heating in a Cloud Chamber
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B Gyro stabilized two-wheeled toy : Why the gimbal?
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B Can we get a real image of virtual objects?
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I Adhesive force between cutting oil and metal chips?
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I Pixels Per Inch Calculation Paradox?
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B What does the symbol ± mean in scientific measurements?
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I Single-mode vs multi-mode fiber coupling
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I What is the significance of the radioactive decay constant?
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B Suction Through Small & Large Pipes
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I Can anything be measured with a single measurement?
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I Example of a theory that was right after 20 years of failures?
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B But WHY do antimatter and matter annihilate on contact?
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B Mastering Equation Solving: m(dv/dt)=mg-bvn | Step-by-Step Guide
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I Galilean transformations x Galilean Group
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I Coherence, Young's double slit experiments.
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I Indirect Airflow for Safe Extraction of Hydrogen from Lead-Acid Battery Room
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Revolution under the influence of a central force
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B Is it dangerous to touch neutral wire?
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B Confused about the ideal gas law
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B Wouldn't fusion reactors also cause global warming?
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B What is the relationship between time and 1D space?
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I Noether's theorem for discrete symmetry
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I Understanding Energy States in Complex Systems
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B Taming Infinities: Examining Quantum Theory and Spacetime with Penrose
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B Why does time only move forward and not backwards?
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I Stress problem between superconductor and wire
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B Where Will the Image Be Formed with Light Rays Perpendicular to a Plane Mirror?
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I Trying to better understand what viscosity really is
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B EMF Induction in a Loop of Wire - Does It Work?
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I Non-Linear Evaporation: Explained for Beginners
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B Whats the principle behind Schuster Focusing?
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I Can the volume of a control volume change with time?
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B Calculating the Uniform B Field in an AC Helmholtz Coil: What's the Formula?
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B Impression of relative velocities
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I What does Fermat's principle of least time mean for causality
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B Recreation of Famous Japanese Rogue Wave
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I Double slit displaying anti-fringes?
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B Solid angle by placing one disk on a cylinder
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I How to select gear/sprocket ratios for vehicle?
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B Quartz vs. Glass -- why do they have different melting points?
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I Tipler/Mosca significant figures
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I Collimating an extended source to infinity?
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Buoyancy, incompressibility and G forces
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I Ice patterns on the inside of my windshield
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B Angle required to hit coordinates x, y, z with air ressitance
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