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Physics Forums | Science Articles, Homework Help, Discussion

  1. Homework Help

    1. Introductory Physics Homework

      Need help with the magnetic field generated by this current distribution

    2. Advanced Physics Homework

      Surface tension in terms of temperature and concentration of an added substance

    3. Precalculus Mathematics Homework

      Cosine rule

    4. Calculus and Beyond Homework

      Complex function open set, sequence, identically zero, proof

    5. Biology, Chemistry and Earth Homework

      Which mechanism and which step would best fit the data?

    6. Engineering and Computer Science Homework

      Castigiliano method

  2. Science Education and Careers

    1. Science and Math Textbooks

      What are you reading now? (STEM only)

    2. Academic Guidance

      Help on REU statement please

    3. Educators and Teaching

      Order of pre-college (high school) physics textbooks

    4. Career Guidance

      Chance of getting a teaching gig with just an MS?

  3. Physics

    1. General Physics

      Question about SETI

    2. Classical Physics

      How is momentum conserved, if you lose kinetic energy?

    3. Quantum Physics

      Hertz experiment

    4. Special and General Relativity

      Understanding the Relative Velocity Paradox

    5. Atomic and Condensed Matter

      Charge carrier density, Hall experiment vs Fermi-Dirac statistics

    6. High Energy, Nuclear, Particle Physics

      CLIC proposal

    7. Beyond the Standard Model

      Quantization isn't fundamental

  4. Astronomy and Cosmology

    1. Astronomy and Astrophysics

      What is the best Dobsonian telescope with a goto feature?

    2. Cosmology

      What is the energy density of spacetime?

  5. Mathematics

    1. General Math

      Math Challenge - November 2018

    2. Calculus

      Derivative of the area is the circumference -- generalization

    3. Differential Equations

      Chaos Theory Constants

    4. Topology and Analysis

      Embedding homeomorphic manifolds

    5. Linear and Abstract Algebra

      Proof of a simple concept , have i done this right?

    6. Differential Geometry

      Tangent spaces at different points

    7. Set Theory, Logic, Probability, Statistics

      Chebyshev inequality, confidence intervals, etc

    8. MATLAB, Maple, Mathematica, LaTeX, Etc

      Problem with line integrals in Mathematica

  6. Engineering

    1. General Engineering

      Feasibility of stratopheric wind turbines?

    2. Mechanical Engineering

      3D Equillibrium Statics Problem - Reaction Forces/Moments

    3. Electrical Engineering

      Harmonics in Power Systems

    4. Materials and Chemical Engineering

      Searching for a strong inflexible plastic that is transparent

    5. Nuclear Engineering

      Current State of Nuclear Fusion Power

    6. DIY Projects

      UHF/SHF Electromagnet

  7. Other Sciences

    1. Chemistry

      Simple method for testing graphene

    2. Programming and Computer Science

      Unusual bug

    3. Biology and Medical

      Slowing down the aging process: facts and latest research?

    4. Computing and Technology

      Advice needed on the best way to learn smart phone

    5. Earth

      2018-12-16 Another day of storms

  8. Uncategorized Thought Field

    1. 2018 PF Member Award Polls

      Humor Award

    2. General Discussion

      Lame Jokes

    3. Science Fiction and Fantasy Media

      Death by light saber - YouTube video

    4. Feedback and Announcements

      RIP PF Member Morbius

    5. New Member Introductions

      Hi there!