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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: Transverse waves on string Simon Bridge, Feb 27, 2015 at 11:11 PM

    2. Science and Math Textbooks

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      Latest: Help me Find a Undergrad Version of this book please! DrPapper, Feb 27, 2015 at 11:23 PM

    3. Academic Guidance

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      Latest: Physics Minor? Niflheim, Feb 27, 2015 at 7:45 PM

    4. Career Guidance

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      Latest: Deciding a focus to study jedishrfu, Feb 27, 2015 at 11:08 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: Is a "Heat Capacitor" Possible? Misha Kuznetsov, Feb 27, 2015 at 11:23 PM

    2. Classical Physics

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      Latest: Charged objects attracted to neutral objects jasonleroy, Feb 27, 2015 at 7:13 PM

    3. Quantum Physics

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      Latest: Proton through a Particle Accelerator jedishrfu, Feb 27, 2015 at 11:16 PM

    4. Special and General Relativity

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      Latest: Interplay of space and time in Spacetime invariant interval DaleSpam, Feb 27, 2015 at 10:47 PM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Molecular Hydrogen absorption spectrum Quantum Defect, Feb 27, 2015 at 1:57 PM

    6. High Energy, Nuclear, Particle Physics

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      Latest: Nuclear Fusion: Why is energy created from mass? Zacpearson, Feb 27, 2015 at 10:04 PM

    7. Beyond the Standard Model

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      Latest: Combined fourth quarter MIP poll (for most important QG papers) marcus, Feb 27, 2015 at 10:28 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Doubts about nebulae and star formation russ_watters, Feb 27, 2015 at 9:44 PM

    2. Cosmology

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      Latest: Thinking outside the box johnveets, Feb 27, 2015 at 8:09 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: How to best read Euclid's Elements jbunniii, Feb 27, 2015 at 9:20 PM

    2. Calculus

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      Latest: surface integral LCKurtz, Feb 27, 2015 at 10:12 PM

    3. Differential Equations

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      Latest: Dirichlet and Nuemann condition on the same boundary Amit Abir, Feb 27, 2015 at 5:51 PM

    4. Topology and Analysis

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      Latest: Maxmimum\Minimum modulus principle mathwonk, Feb 27, 2015 at 6:17 PM

    5. Linear and Abstract Algebra

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      Latest: Struggling to understand a field theorm's corollary micromass, Feb 27, 2015 at 6:06 PM

    6. Differential Geometry

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      Latest: Stuck with tensors, need a push Fredrik, Feb 27, 2015 at 11:01 AM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Drawing three cards - combined probability Lenus, Feb 27, 2015 at 7:56 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: Need help calculating the heat of a wire wrapped Quantum Defect, Feb 27, 2015 at 9:40 PM

    2. Engineering Systems and Design

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      Latest: 4 in lift mechanism using a continuous servo? billy_joule, Feb 27, 2015 at 1:00 PM

    3. Mechanical Engineering

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      Mechanical Engineering

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: How do I calculate moment of inertia in a wheel? Dr.D, Feb 27, 2015 at 10:19 PM

    4. Electrical Engineering

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      Latest: 12V Wind Turbine - Voltage question Averagesupernova, Feb 27, 2015 at 11:00 PM

    5. Materials and Chemical Engineering

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      Latest: Buried water pipes freeze-has been cold-the sun comes out 256bits, Feb 27, 2015 at 1:35 AM

    6. Nuclear Engineering

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      Latest: Question about radioactivity russ_watters, Feb 27, 2015 at 10:17 PM

  6. Other Sciences

    1. Chemistry

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      Latest: term 'Iso ' in naming (common name) SteamKing, Feb 27, 2015 at 10:36 PM

    2. Biology

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      Latest: Introductions to Quantum-biology? tijana, Feb 27, 2015 at 8:09 PM

    3. Medical Sciences

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      Latest: Can pull up exercise increase height? Silicon Waffle, Feb 27, 2015 at 10:56 PM

    4. Programming and Computer Science

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      Latest: Run Javascript after DOM is ready Filip Larsen, Feb 27, 2015 at 2:37 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

      Sub-Forums

      1. Calculators

      Latest: Need MP3 player. Should I just get a phone? harborsparrow, Feb 27, 2015 at 7:41 PM

  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: How to present a new scientific idea russ_watters, Feb 27, 2015 at 11:20 PM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: Consequences of denser atmosphere on Earth-like planet Bystander, Feb 27, 2015 at 3:58 PM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: Scribble pad along with normal posting jedishrfu, Feb 27, 2015 at 11:07 PM

    4. New Member Introductions

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      Latest: Hello, I'm Zac jedishrfu, Feb 27, 2015 at 10:55 PM