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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.
High School Is the Universe Moving in Circular Patterns Within the 4th Dimension?
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High School Can We Use Nuclear Weapons to Stop a Comet Impact?
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Undergrad Classical Chaos: Can a Particle Move Chaotically and Be Subject to Force?
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Undergrad Attosecond Physics Explained - Get Your Answers Here
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Undergrad What does the term "Typical Wavelength" mean in this context?
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Undergrad Why Does Subtractive Cancellation Affect Measurement Precision?
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Classical Mechanics Monographs: Re-Discovering Whittaker's 1917 Problem
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Undergrad Circus physics problem (chinese pole)
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Undergrad Doesn't the atom in ground state radiate?
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Einstein Refrigeration: Constructing the System with Limited Knowledge
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Undergrad Fixing Ship Ramp: Winch vs Windlass
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High School Does an orbiting mass exert force on what it is orbiting around?
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Undergrad C Could a Jet Helicopter with Wings Fly at Supersonic Speeds?
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High School 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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High School How Can I Measure Lumen, Efficiency, and Color Temperature of a Street Lamp?
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High School What Are the Dimensions of kWh?
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Graduate Is "Equal a priori Probabilities" the correct scientific approach?
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Undergrad Analytical Open Channel Rectangular Fluid Flow
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Graduate What is the relationship between focal length and focus point in convex lenses?
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High School What Happens to Volume Change Ratio in Caesium When Pressure Exceeds 1.6 GPa?
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Undergrad How Is Summation Changed to Integration in Reif's Statistical Mechanics?
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Undergrad Center of Mass of a jetpack-Earth System
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Chief Ray Angle and Field of View
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High School Confusion about the Strain Energy when loading/unloading a sample
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High School Question about the term "frozen"
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High School Phases of Matter: Solid, Liquid, Gas & More
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Undergrad Typo in elliptical orbit energy derivation?
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Undergrad How was the speed of light calculated before the redefinition of the meter?
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Undergrad Van Allen Belts: why are they where they are?
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High School Movement in a Vacuum: Does Acceleration Show Anything?
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Undergrad Isn't planetary rock dating really supernova dating?
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High School Phase change or not: oil in the refrigerator
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Undergrad Subsonic and Supersonic Airflow Through a Constriction
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Undergrad Do two perpendicular wires exert a force on each other?
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Number Precision When Adding/Subtracting
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Undergrad How Does Gravitational Jerk Affect Acceleration in Space?
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Undergrad Simple harmonic oscillators on floating object in liquid
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Undergrad What is a realistic image of quarks?
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High School Why is the height of a liquid not affected by the radius of a U-Shaped tube
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Undergrad Is this proof regarding massless strings correct?
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Undergrad Damped Oscillations: Does a Pendulum Ever Truly Stop?
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Undergrad Grounding Process: Neutralizing Negatively Charged Objects
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Undergrad Wave conventions: E(x,t) and E(t), E(x) confusion
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Graduate The Oberth effect and multiple orbits
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High School Long term sustainable energy bounds
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High School How a Secondary Resistor affects the Transformer Primary Side?
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Undergrad What are the physics behind a bell siphon in an aquaponics system?
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High School Prism Forming Image: Nature & Types
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High School Need Help Regarding a U Shaped tube problem
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High School Can the same formula be used for both water and mercury manometers?
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Undergrad Showing that planets follow elliptical orbits
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High School Constant Off-Center Propulsion (without gravity)
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Energy released upon ionization of different gases
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Undergrad Cooking Physics: 2 TV Dinners at 350 Degrees
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High School Understanding gravity: mass and gravity relation
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High School Irradiance: difference between distance and the square of the distance?
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High School Inverse Square Law: Voltage/Current Graphs
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Undergrad How to change the color of an LED?
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High School Effects of Cooling and Heating in a Cloud Chamber
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High School Gyro stabilized two-wheeled toy : Why the gimbal?
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High School Can we get a real image of virtual objects?
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Undergrad Adhesive force between cutting oil and metal chips?
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Undergrad Pixels Per Inch Calculation Paradox?
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High School What does the symbol ± mean in scientific measurements?
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Undergrad Single-mode vs multi-mode fiber coupling
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Undergrad What is the significance of the radioactive decay constant?
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High School Suction Through Small & Large Pipes
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Undergrad Can anything be measured with a single measurement?
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Undergrad Example of a theory that was right after 20 years of failures?
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High School But WHY do antimatter and matter annihilate on contact?
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High School Mastering Equation Solving: m(dv/dt)=mg-bvn | Step-by-Step Guide
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Undergrad Galilean transformations x Galilean Group
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Undergrad Coherence, Young's double slit experiments.
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Undergrad 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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High School Is it dangerous to touch neutral wire?
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High School Confused about the ideal gas law
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High School Wouldn't fusion reactors also cause global warming?
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High School What is the relationship between time and 1D space?
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Undergrad Noether's theorem for discrete symmetry
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Undergrad Understanding Energy States in Complex Systems
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High School Taming Infinities: Examining Quantum Theory and Spacetime with Penrose
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High School Why does time only move forward and not backwards?
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Undergrad Stress problem between superconductor and wire
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High School Where Will the Image Be Formed with Light Rays Perpendicular to a Plane Mirror?
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Undergrad Trying to better understand what viscosity really is
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High School EMF Induction in a Loop of Wire - Does It Work?
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Undergrad Non-Linear Evaporation: Explained for Beginners
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High School Whats the principle behind Schuster Focusing?
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Undergrad Can the volume of a control volume change with time?
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High School Calculating the Uniform B Field in an AC Helmholtz Coil: What's the Formula?
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High School Impression of relative velocities
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Undergrad What does Fermat's principle of least time mean for causality
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High School Recreation of Famous Japanese Rogue Wave
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Undergrad Double slit displaying anti-fringes?
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High School Solid angle by placing one disk on a cylinder
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Undergrad How to select gear/sprocket ratios for vehicle?
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High School Quartz vs. Glass -- why do they have different melting points?
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Undergrad Tipler/Mosca significant figures
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