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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: Cloud Chamber andrevdh, Mar 2, 2015 at 6:21 AM

    2. Science and Math Textbooks

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      Latest: The Best Textbook for a Good Understanding of Mathematics PeroK, Mar 2, 2015 at 5:09 AM

    3. Academic Guidance

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      Latest: How To Fix My Weak Physics Foundations? EnlightenedOne, Mar 2, 2015 at 5:53 AM

    4. Career Guidance

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      Latest: Concerned about ability to succeed in job/grad school jedishrfu, Mar 2, 2015 at 12:32 AM

    5. Educators and Teaching

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      Latest: New to AP teaching - AP Physics 1 test help Redbelly98, Mar 1, 2015 at 12:00 PM

    6. STEM Learning Materials

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      Latest: Material that'll help improve write-ups for lab experiments? Vagn, Mar 1, 2015 at 3:36 PM

  2. Physics

    1. General Physics

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      Latest: How does split step Fourier method help four wave mixing? soarce, Mar 2, 2015 at 6:38 AM

    2. Classical Physics

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      Latest: collision sound Drakkith, Mar 2, 2015 at 5:44 AM

    3. Quantum Physics

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      Latest: classical states and decoherence lucas_, Mar 2, 2015 at 6:13 AM

    4. Special and General Relativity

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      Latest: Mass warp spacetime ChrisVer, Mar 2, 2015 at 6:41 AM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Differences between Boltzmann and Fermi-Dirac distributions DrClaude, Mar 2, 2015 at 2:42 AM

    6. High Energy, Nuclear, Particle Physics

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      Latest: differential cross-section for partonic collisions Orodruin, Mar 2, 2015 at 1:26 AM

    7. Beyond the Standard Model

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      Latest: Hubble Constant and Entropy Jimster41, Mar 2, 2015 at 5:21 AM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Doubts about nebulae and star formation Drakkith, Mar 2, 2015 at 6:08 AM

    2. Cosmology

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      Latest: Extremely large Black Hole discovered 900M years after BB Jorrie, Mar 2, 2015 at 4:35 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: Adjacent vertices in convex polygons jbriggs444, Mar 2, 2015 at 6:07 AM

    2. Calculus

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      Latest: Multivariable limit nuuskur, Mar 2, 2015 at 6:22 AM

    3. Differential Equations

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      Latest: Understanding coupled Runga Kutta derivation DrClaude, Mar 2, 2015 at 2:57 AM

    4. Topology and Analysis

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      Latest: Clarification about Poincaré's conjecture lavinia, Mar 2, 2015 at 6:40 AM

    5. Linear and Abstract Algebra

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      Latest: Im(BF) in Im(B)? Payam30, Mar 2, 2015 at 4:35 AM

    6. Differential Geometry

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      Latest: Attempting to understand diffeomorphisms "Don't panic!", Mar 1, 2015 at 11:31 AM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Drawing three cards - combined probability Lenus, Mar 1, 2015 at 11:30 PM

    8. Math Software and LaTeX

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      Latest: matlab intro DrClaude, Mar 1, 2015 at 1:44 PM

  5. Engineering

    1. General Engineering

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      Latest: Why Aren't All Space Rockets More Efficient? AkiAkane1973, Mar 2, 2015 at 4:24 AM

    2. Engineering Systems and Design

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      Latest: "Members of a frame are axially inextensible" implication? Chestermiller, Mar 1, 2015 at 12:13 PM

    3. Mechanical Engineering

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      Mechanical Engineering

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      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Jet engine position yrjosmiel73, Mar 2, 2015 at 6:20 AM

    4. Electrical Engineering

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      Latest: What is the polarity of a Pn junction diode thankz, Mar 2, 2015 at 6:26 AM

    5. Materials and Chemical Engineering

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      Latest: how do you seperate iron from clay? thankz, Mar 2, 2015 at 4:02 AM

    6. Nuclear Engineering

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      Latest: MCNPX dose result is too small ; ( Kim Jae ryang, Mar 2, 2015 at 1:35 AM

  6. Other Sciences

    1. Chemistry

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      Latest: Work in Enthalpy DrClaude, Mar 2, 2015 at 6:30 AM

    2. Biology

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      Latest: Neanderthal fossils... never frozen? Evo, Mar 1, 2015 at 10:34 PM

    3. Medical Sciences

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      Latest: Bad luck is primary cause of most cancer thankz, Mar 2, 2015 at 6:43 AM

    4. Programming and Computer Science

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      Latest: Rounding up Random Numbers DrClaude, Mar 2, 2015 at 6:28 AM

    5. Earth

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      Latest: Impact: Earth! A meteor/comet impact simulator OmCheeto, Mar 2, 2015 at 12:44 AM

    6. Computing and Technology

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      Computing and Technology

      Sub-Forums

      1. Calculators

      Latest: Digital pen guide Alicia Hurst, Mar 2, 2015 at 5:01 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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      Latest: Random Thoughts part 4 nuuskur, Mar 2, 2015 at 6:45 AM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: Can basic quantum physics explain the TARDIS from doctor who Ryan_m_b, Mar 2, 2015 at 6:19 AM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: Walking on eggshells narrator, Mar 1, 2015 at 10:53 PM

    4. New Member Introductions

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      Latest: Good Morning everyone dugal, Mar 2, 2015 at 6:41 AM