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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.
Undergrad Significant figures and uncertainty in measurements
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Undergrad 3D coordinates vector calculation
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Why do copper, gold and cesium have special colors?
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High School Justification for emergent anything
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Undergrad Is there so-called "optimal traction" for vehicles?
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Undergrad What chemicals inside a hearing aid battery make it explode?
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High School Measuring Objects using Dissimilar Units
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High School Energy required to get 1 kg of lead to a given temp from 0 K
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Undergrad Is Non-Commutative Geometry the Key to a Discrete Model of Spacetime?
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High School Will Block M2 Move Left? Understanding Forces in a Connected Spring System"
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Undergrad Is there a simple explanation for Fermi-Dirac statistics?
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High School Calculate, not measure the value of c
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Undergrad If we teleport 1mm^3 of a neutron star outside it what hapens?
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High School Greatest Possible Uncertainty and Sig Figs
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Undergrad Questions on Debye's Model of solids
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Undergrad Fermat's Principle: Is Light Travel Time Min?
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High School History of Error Bars in Physics
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High School What Is the Harm in Using Finite dx in Calculus?
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Emergent Property: Usefulness in Physics
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Undergrad PMT Sensitivity Explained: Understanding Photomultiplier Tube Sensitivity
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High School Is Time Emerging? Physicists' Experiments & Many-Worlds Interpretation
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High School When Difference between Kelvin and Celsius are negligible
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High School Exploring Mass-Energy Equivalence: Impact of Heating on Mass Increase
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EMF Oppsition in Adjacent Wires +/- Swing
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Undergrad Description of physical system help
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Undergrad Spinning bicycle wheel in air and letting it go
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High School Addition of Perpendicular Vectors in two ways
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High School Spiral piece of wood moves upstream
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Undergrad The amount of time it will take to melt ice
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High School In night vision equipment, how does 'information' transfer?
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Undergrad People pulling rope, one in a perpendicular direction
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High School Graphene Spinning Speed: Theoretical Max RPM of 1m Radius
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Undergrad Can Infrared Photons Enter Nanotubes?
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High School How do we know our laws of physics are correct?
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Delta V Calculator: Launch in an Atmosphere & Orbit Dimensions
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Undergrad Two blocks connected with a fragile rope
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Undergrad Understanding Gauss's Law: Where Does the Argument Break Down?
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High School Is There a Formula for Gm/r in Gravitational Potential?
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Undergrad Force acting on a stationary object in a flowing pipe
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High School My Third Post: Change of Intermolecular Distance?
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Undergrad Physics of colors and our perception
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Undergrad Is E=mc^2 Explained Correctly?
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Undergrad How to measure the surface area of an arbitrary 3D object
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High School Condensate around rocket spin? Why?
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Undergrad Gauss' law applied on a four-dimensional surface
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Creating a (synthetic) song from a zebra finch's muscle
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High School Is the Stairmaster a Valuable Exercise Tool Despite Physics Misconceptions?
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High School Why do modern wind turbines have 3 blades?
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Graduate A x ds = v x dv or a • ds = v • dv?
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Undergrad The role of capillaries in a dilution refrigerator
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Undergrad Translational Symmetry: Effects on Laws & World
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Undergrad Calculating E Field Inside Cylinder of Finite Height
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What is the real definition of foot-candle?
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High School Symmetry in Nature: Is Physical Nature Symmetrical?
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High School Why does mercury rise in a glass capillary tube despite its strong cohesion?
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Undergrad Does Physics Allow for a Time Component in Vector Quantities?
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High School Understanding Absence of a Microscopic Arrow of Time
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High School LC Oscillation: Current Flow & Charge Polarity
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High School Is everything binary on macroscopic level
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Undergrad Why are the laws of physics what they are?
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High School Distance traveled in the nth second
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Error in Mathematical Methods for Physicist by Arfken, et al
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High School Conduction and Diffusion: Two Sides of Heat Transfer?
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Undergrad Frozen fruit aggregates in hot porridge
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High School Lead vs. Rubber Bullets: Which is More Effective in Stopping a Bear?
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High School Can I use three equations for the same concept?
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High School How much should it cost to build an MRI Scanner?
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Undergrad How do telescopes allow us to see light sources millions of light years away?
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Undergrad Do we "lose" information when viewing objects at a distance?
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High School Can graphene be used as a template for graphene growth
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High School What does it mean by "the body covers equal distance''
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Undergrad Tensor Equations: Invariance Across Different Reference Frames?
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Graduate Questions about the energy of a wave as a Taylor series
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High School GoalRef Technology Basics: Low Frequency Magnetic Fields & Coils
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High School What Are the Different Fields of Physics Explored by Dominic Walliman?
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Undergrad Babies Upside Down: How Buoyancy Protects from Gravity
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Undergrad Dust Accumulation on Fan Blades and Elsewhere
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High School How Long Will My Camping Battery Last?
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Undergrad The Mystery of Room Coolers During an Unusually Hot Summer
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Undergrad Is Energy Fundamental or Derived?
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Undergrad How can I represent a stochastic process in 2D?
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Undergrad Can the Parker Solar Probe Be Cooled by Radiating Heat into Space?
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High School Have you seen the Space Showers in Chicago?
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Undergrad How are Bamboo Copter Toys Stabilized?
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High School A quick theoretical question on dark matter
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Undergrad Is this just a normal fluorescence of glass molecules?
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Undergrad Why do the intake spikes on the SR71 Blackbird point down and inboard?
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High School What are energy and charge in subatomic particles?
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Undergrad What does the total time derivative of a function signify in Noether's Theorem?
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High School What is the gravitational force like near a black hole?
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Undergrad Fourier transform -- what physical variables am I allowed to transform between?
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Undergrad Which object will hit the surface of a planet first?
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Undergrad Dropped objects hitting the ground at the same time?
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Undergrad How to determine the center of gravity of a satellite
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Feynman Audio Lectures: Complete Set Available?
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High School Can Cameras Outperform Human Eyes in Perception?
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Undergrad How to Calculate Power of a Turning Shaft?
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Undergrad Force exerted by a rope wound around a disk
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High School Lowest possible altitude for a Satellite
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Undergrad Why Am I Getting a Reading of 0.3 Amps When Connecting AA Batteries in Parallel?
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