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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: Charge and Voltage on Capacitors. Yut, Mar 1, 2015 at 5:23 PM

    2. Science and Math Textbooks

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      Latest: Math Textbook Series NumericalFEA, Mar 1, 2015 at 4:55 PM

    3. Academic Guidance

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      Latest: Math REUs 2015 Vanadium 50, Mar 1, 2015 at 3:28 PM

    4. Career Guidance

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      Latest: Is medical physics a good career option? Choppy, Mar 1, 2015 at 5:03 PM

    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: What is the correct way to draw this internal reflection Syndy, Mar 1, 2015 at 5:20 PM

    2. Classical Physics

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      Latest: Mythbusters: Blow your own sail A.T., Mar 1, 2015 at 2:55 PM

    3. Quantum Physics

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      Latest: Electrons and the Double Slit experiment questions Howard, Mar 1, 2015 at 1:51 PM

    4. Special and General Relativity

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      Latest: Quick calculation check please name123, Mar 1, 2015 at 5:03 PM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Reciprocal lattice vector M Quack, Mar 1, 2015 at 1:24 PM

    6. High Energy, Nuclear, Particle Physics

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      Latest: What exactly does it mean for an isotope to be stable? VantagePoint72, Mar 1, 2015 at 4:56 PM

    7. Beyond the Standard Model

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      Latest: Hubble Constant and Entropy Jimster41, Mar 1, 2015 at 4:42 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Doubts about nebulae and star formation D H, Mar 1, 2015 at 4:24 PM

    2. Cosmology

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      Latest: Extremely large Black Hole discovered 900M years after BB Tanelorn, Mar 1, 2015 at 4:53 PM

    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: Universal? or Multiple Units of Measure? Lobos, Mar 1, 2015 at 4:56 PM

    2. Calculus

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      Latest: Question regarding differentiation of x with respect to x Mark44, Mar 1, 2015 at 5:19 PM

    3. Differential Equations

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      Latest: Understanding coupled Runga Kutta derivation ognik, Mar 1, 2015 at 4:59 PM

    4. Topology and Analysis

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      Latest: Clarification about Poincaré's conjecture lavinia, Mar 1, 2015 at 5:00 PM

    5. Linear and Abstract Algebra

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      Latest: Green's Function - modified operator RightFresh, Mar 1, 2015 at 4:31 PM

    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: confusion over definition of relations in set theory Stephen Tashi, Mar 1, 2015 at 11:32 AM

    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: Hotel Load of train: Why separate generator & not locomotive Drakkith, Mar 1, 2015 at 5:16 PM

    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

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Determine the Rate of Change of Pressure Across a Valve montoyas7940, Mar 1, 2015 at 5:16 PM

    4. Electrical Engineering

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      Latest: 12V Wind Turbine - Voltage question jim hardy, Mar 1, 2015 at 5:24 PM

    5. Materials and Chemical Engineering

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      Latest: Good absorber = good emitter? fog37, Mar 1, 2015 at 1:01 PM

    6. Nuclear Engineering

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      Latest: An idea for a Pu-238 replacement for NASA space missions Evanish, Mar 1, 2015 at 5:20 PM

  6. Other Sciences

    1. Chemistry

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      Latest: Am I reading this reaction right? SteamKing, Mar 1, 2015 at 5:05 PM

    2. Biology

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      Latest: What might cell membranes look like on Titan? mfb, Mar 1, 2015 at 5:04 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: Java Method and Subclass Robben, Mar 1, 2015 at 1:34 PM

    5. Earth

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      Messages:
      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

      3. Photography

      4. Fun, Photos and Games

      5. Relationships

      6. Social Sciences

      Latest: Why do you like physics? CrystalCaribean, Mar 1, 2015 at 5:22 PM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: And... who is your Swords+Sorcery or Fantasy character? Khatti, Mar 1, 2015 at 4:53 PM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: I say a big thank you :) Greg Bernhardt, Mar 1, 2015 at 4:29 PM

    4. New Member Introductions

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      Latest: Newbie to the nerd mecca :) CrystalCaribean, Mar 1, 2015 at 4:30 PM