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Physics Forums - The Fusion of Science and Community

  1. Science Education

    1. Homework and Coursework Questions

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      Homework and Coursework Questions

      Sub-Forums

      1. Introductory Physics Homework

      2. Advanced Physics Homework

      3. Precalculus Mathematics Homework

      4. Calculus and Beyond Homework

      5. Biology, Chemistry and Earth Homework

      6. Engineering and Computer Science Homework

      Latest: Geometry question Svein, Mar 1, 2015 at 12:56 AM

    2. Science and Math Textbooks

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      Latest: Good book for Mechanics? TomServo, Feb 28, 2015 at 10:54 PM

    3. Academic Guidance

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      Latest: Want to major in computer science, but dont like programming Stephen Tashi, Mar 1, 2015 at 12:50 AM

    4. Career Guidance

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      Latest: DoE/SULI acceptances? QuantumCurt, Feb 28, 2015 at 10:58 PM

    5. Educators and Teaching

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      Latest: Why are students permitted to use calculators on AP math? momof4, Feb 27, 2015 at 11:30 AM

    6. STEM Learning Materials

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      Latest: Problem Book in Relativity and Gravitation, online, free bcrowell, Feb 25, 2015 at 4:30 PM

  2. Physics

    1. General Physics

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      Latest: Complex Wave Orientation Correction Nick., Mar 1, 2015 at 12:51 AM

    2. Classical Physics

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      Latest: Attractive and repulsive forces from net charges akshaya, Mar 1, 2015 at 12:52 AM

    3. Quantum Physics

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      Latest: How would MWI explain delayed choice quantum eraser? Brendan D, Feb 28, 2015 at 11:16 PM

    4. Special and General Relativity

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      Latest: How Do Spinors Fit in With Differential Geometry Haelfix, Mar 1, 2015 at 12:59 AM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Can scotch tape method get film size larger than particles? ModestyKing, Mar 1, 2015 at 12:20 AM

    6. High Energy, Nuclear, Particle Physics

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      Latest: Experimental Black Hole Physics wabbit, Feb 28, 2015 at 4:00 AM

    7. Beyond the Standard Model

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      Latest: String Theory- Multiverse akshaya, Mar 1, 2015 at 12:58 AM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Our Beautiful Universe DennisN, Feb 28, 2015 at 10:38 PM

    2. Cosmology

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      Latest: Expansion of the universe marcus, Mar 1, 2015 at 1:01 AM

    3. Stargazing and Telescopes

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      Latest: Planning to buy a first telescope? jim hardy, Feb 27, 2015 at 12:44 PM

  4. Mathematics

    1. General Math

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      Latest: Starting with Spivak - question robjow, Mar 1, 2015 at 12:24 AM

    2. Calculus

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      Latest: Multivariable limit nuuskur, Mar 1, 2015 at 12:49 AM

    3. Differential Equations

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      Latest: system of diff eqs modeling tanks of brine Astronuc, Feb 28, 2015 at 11:43 PM

    4. Topology and Analysis

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      Latest: Clarification about Poincaré's conjecture lavinia, Feb 28, 2015 at 5:59 PM

    5. Linear and Abstract Algebra

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      Latest: Green's Function - modified operator RightFresh, Feb 28, 2015 at 4:17 PM

    6. Differential Geometry

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      Latest: Is this a valid parametrization of the torus? Ben Niehoff, Feb 28, 2015 at 4:03 PM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Drawing three cards - combined probability mathman, Feb 28, 2015 at 4:16 PM

    8. Math Software and LaTeX

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      Latest: Fitting an ellipse through 3-d data SubTachyon, Feb 27, 2015 at 4:36 PM

  5. Engineering

    1. General Engineering

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      Latest: Why buy new model rocket engines? Dotini, Feb 28, 2015 at 7:59 PM

    2. Engineering Systems and Design

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      Latest: Reaction forces not matching with Test results Bruce321, Feb 28, 2015 at 6:16 PM

    3. Mechanical Engineering

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      Mechanical Engineering

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Determine the Rate of Change of Pressure Across a Valve HuskyNamedNala, Feb 28, 2015 at 7:44 PM

    4. Electrical Engineering

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      Latest: Replacing a capacitor in my DVD player davenn, Mar 1, 2015 at 12:52 AM

    5. Materials and Chemical Engineering

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      Latest: Delta(U) = Cvdelta(T) for Ideal Gases??? Chestermiller, Feb 28, 2015 at 9:42 PM

    6. Nuclear Engineering

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      Latest: Question about radioactivity Simon Bridge, Mar 1, 2015 at 12:00 AM

  6. Other Sciences

    1. Chemistry

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      Latest: Am I reading this reaction right? JeffEvarts, Mar 1, 2015 at 12:57 AM

    2. Biology

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      Latest: What might cell membranes look like on Titan? jim hardy, Feb 28, 2015 at 7:24 PM

    3. Medical Sciences

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      Latest: Can pull up exercise increase height? jobyts, Feb 28, 2015 at 11:37 PM

    4. Programming and Computer Science

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      Latest: C++ and pthread simple program help perplexabot, Feb 28, 2015 at 2:42 PM

    5. Earth

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      Latest: Large crater in Siberia D H, Feb 27, 2015 at 4:49 PM

    6. Computing and Technology

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      Computing and Technology

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      1. Calculators

      Latest: Is 4GB of VRAM overkill for 1080p gaming? Hercuflea, Feb 28, 2015 at 5:51 AM

  7. PF Lounge

    1. General Discussion

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      General Discussion

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      1. Current Events

      2. History and Humanities

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      4. Fun, Photos and Games

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      6. Social Sciences

      Latest: Random Thoughts part 4 nuuskur, Mar 1, 2015 at 12:59 AM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: Hard Science Fiction GiantSheeps, Feb 28, 2015 at 5:18 PM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: Chat Groups? Meesh, Feb 28, 2015 at 11:45 PM

    4. New Member Introductions

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      Latest: FORTRAN for Physics Computing NascentOxygen, Mar 1, 2015 at 12:18 AM