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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: Flow Through Orifice samjohnny, Mar 1, 2015 at 6:39 AM

    2. Science and Math Textbooks

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      Latest: Introductory book on semiconductors? Gytax, Mar 1, 2015 at 5:26 AM

    3. Academic Guidance

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      Latest: Want to major in computer science, but dont like programming Almeisan, Mar 1, 2015 at 5:33 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? symbolipoint, Mar 1, 2015 at 3:04 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: Basic Physics talibji786, Mar 1, 2015 at 6:40 AM

    2. Classical Physics

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      Latest: Total Electrostatic Energy in a system of charges Philip Wood, Mar 1, 2015 at 5:12 AM

    3. Quantum Physics

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      Latest: classical states and decoherence lucas_, Mar 1, 2015 at 5:30 AM

    4. Special and General Relativity

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      Latest: How Do Spinors Fit in With Differential Geometry Ben Niehoff, Mar 1, 2015 at 6:30 AM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Reciprocal lattice vector Nikitin, Mar 1, 2015 at 6:39 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 phinds, Mar 1, 2015 at 2:49 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: Recommendations of book. Prannoy Mehta, Mar 1, 2015 at 3:52 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: Function and function Mark44, Mar 1, 2015 at 1:31 AM

    2. Calculus

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      Latest: Multivariable limit wabbit, Mar 1, 2015 at 6:37 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: Hotel Load of train: Why separate generator & not locomotive Baluncore, Mar 1, 2015 at 5:49 AM

    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 Purple_Dan, Mar 1, 2015 at 6:04 AM

    4. Electrical Engineering

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      Latest: Replacing a capacitor in my DVD player sophiecentaur, Mar 1, 2015 at 5:01 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: The Nuclear Power Thread nikkkom, Mar 1, 2015 at 5:51 AM

  6. Other Sciences

    1. Chemistry

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      Latest: The Smell of Garlic and Enzymatic Oxidation dncosar, Mar 1, 2015 at 6:23 AM

    2. Biology

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      Latest: Neanderthal fossils... never frozen? Simon Bridge, Mar 1, 2015 at 5:24 AM

    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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      20,346
      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

      Sub-Forums

      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

      5. Relationships

      6. Social Sciences

      Latest: Bucket list - things to do, places to go/see Borg, Mar 1, 2015 at 6:40 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: Introducing myself phinds, Mar 1, 2015 at 4:32 AM