1. Homework Help

   1. Introductory Physics Homework

      Radius of a particle's path in a B field and magentic momentum force

   2. Advanced Physics Homework

      First order perturbation energy correction to H-like atom

   3. Precalculus Mathematics Homework

      Probability of winning 10 times in 12 matches

   4. Calculus and Beyond Homework

      find the height of each right cylinder?

   5. Biology, Chemistry and Earth Homework

      Van der waal's constants

   6. Engineering and Computer Science Homework

      Buckling of a column homework help please.

2. Science Education and Careers

   1. Science and Math Textbooks

      Suggestions for 9th Grade Physics Textbooks?

   2. Academic Guidance

      I have no background for my undergraduate studies

   3. Educators and Teaching

      Learning How To Teach

   4. Career Guidance

      Associate Engineer degree -- how is it viewed around the world

3. Physics

   1. General Physics

      Apliying PCA to two correlated stochastic processes

   2. Classical Physics

      Does "magnetic charge" fit into vector potential?

   3. Quantum Physics

      Photoelectric Effect via QED?

   4. Special and General Relativity

      "Doppler" Gravity

   5. Atomic and Condensed Matter

      Viscosity from DFT (VASP) using the Green-Kubo relation

   6. High Energy, Nuclear, Particle Physics

      Regge theory and QCD

   7. Beyond the Standard Model

      New perspectives on M-theory

4. Astronomy and Cosmology

   1. Astronomy and Astrophysics

      Dawn moving to low Ceres orbit, mission extended until hydrazine runs out

   2. Cosmology

      How large was the Universe at its moment of creation?

5. Mathematics

   1. General Math

      Necessary and sufficient x^3=1

   2. Calculus

      Constrained variational problem

   3. Differential Equations

      ODE from Geometry Problem

   4. Topology and Analysis

      Reshetikhin-Turaev Invariant of Manifolds

   5. Linear and Abstract Algebra

      Showing that a binary operation is well-defined

   6. Differential Geometry

      First Variation of Jacobi Operator

   7. Set Theory, Logic, Probability, Statistics

      Lowest probability for physical possibility

   8. MATLAB, Maple, Mathematica, LaTeX, Etc

      Practice writing LaTex

6. Engineering

   1. General Engineering

      Cooling System-What is the main purpose of the Compressor

   2. Mechanical Engineering

      Some points about a vortex tube

   3. Electrical Engineering

      Length of time needed to measure digital clock accuracy

   4. Materials and Chemical Engineering

      Electric potential in Comsol

   5. Nuclear Engineering

      Is it correct to calculate the number of particles

   6. DIY Projects

      How to build your own high frequency oscilloscope

7. Other Sciences

   1. Chemistry

      Has anyone ever dealt with limescale in a bathroom sink?

   2. Programming and Computer Science

      Rotation Measurment with Encoders

   3. Biology and Medical

      How important are T-Cells

   4. Computing and Technology

      Can stylus be used on any smartphone?

   5. Earth

      May 2018 was Warmest in Recorded History

8. PF Lounge

   1. General Discussion

      Mensa IQ Test

   2. Science Fiction and Fantasy Media

      Physics in an old TV show

   3. Feedback and Announcements

      paragraphing Latex expressions

   4. New Member Introductions

      My name is Weam Abou Hamdan

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