1. Homework Help

   1. Introductory Physics Homework

      White Roof Vs. Black Roof on a house

   2. Advanced Physics Homework

      Calculating the electric potential

   3. Precalculus Mathematics Homework

      Cartesian Product of Sets

   4. Calculus and Beyond Homework

      Help in solving an inexact differential equation

   5. Biology, Chemistry and Earth Homework

      Synthesis of Coordination Compounds and the Role of Charcoal

   6. Engineering and Computer Science Homework

      Solve for Vout of op amp

2. Science Education and Careers

   1. Science and Math Textbooks

      Asking for recommendation on Fluid Dynamics and CFD textbooks

   2. Academic Guidance

      Should I start with a basic physics book without calculus?

   3. Educators and Teaching

      Hall's Marriage Theorem

   4. Career Guidance

      Changing my college major to statistics -- Should I?

3. Physics

   1. General Physics

      Is 3-point of H20 used for Kelvin a certain set of isotope

   2. Classical Physics

      Conceptual question about the Coriolis force and the weather

   3. Quantum Physics

      QFT and Entanglement

   4. Special and General Relativity

      Does the sharp curvature of S-T change a particle's shape?

   5. Atomic and Condensed Matter

      Selected area diffraction

   6. High Energy, Nuclear, Particle Physics

      Reference for Hadron mass & spin problem?

   7. Beyond the Standard Model

      Quantization isn't fundamental

4. Astronomy and Cosmology

   1. Astronomy and Astrophysics

      Barnard's Star, 6 Light-Years Away, May Have Cold SuperEarth

   2. Cosmology

      What would happen if dark energy density decreased?

5. Mathematics

   1. General Math

      Cancelling zero

   2. Calculus

      How to transform this into partial derivatives? (Arfken)

   3. Differential Equations

      Boundary condition 1D beam

   4. Topology and Analysis

      Completeness of a basis function

   5. Linear and Abstract Algebra

      Representation of elements of the Grassmannian space

   6. Differential Geometry

      Lie derivative of vector field defined through integral curv

   7. Set Theory, Logic, Probability, Statistics

      Probability of n consecutive tails in n coin tosses

   8. MATLAB, Maple, Mathematica, LaTeX, Etc

      Solution to Associate Legendre's Eq

6. Engineering

   1. General Engineering

      Lion Air 737 Crash

   2. Mechanical Engineering

      Motor fan pulley sizing for HVAC

   3. Electrical Engineering

      Autotransformer and Back-EMF

   4. Materials and Chemical Engineering

      Tire rubber durometer rating -- stability

   5. Nuclear Engineering

      Spheromak info

   6. DIY Projects

      Using ultrasound to create guitar effects

7. Other Sciences

   1. Chemistry

      Polypropylene question: "high heat tolerance"

   2. Programming and Computer Science

      High pass filtering FFT2 matlab

   3. Biology and Medical

      RAPD - close proximity of primers

   4. Computing and Technology

      Anti-virus and Internet Security Software

   5. Earth

      Pleistocene meteor crater on Greenland

8. The MC Square

   1. General Discussion

      Why does flat Earth belief still exist?

   2. Science Fiction and Fantasy Media

      Are space fighters really impossible in realistic Sci Fi?

   3. Feedback and Announcements

      Possibility of PGN Display

   4. New Member Introductions

      Interested in learning physics as a hobby. :^)

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