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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: Output waveforms with a clamped capacitor Zondrina, Feb 27, 2015 at 8:04 PM

    2. Science and Math Textbooks

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      Latest: Help me Find a Undergrad Version of this book please! snatchingthepi, Feb 27, 2015 at 6:03 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: As a High school senior, my knowledge of physics is limited PsychonautQQ, Feb 27, 2015 at 6:14 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: Do we have a complete knowledge of the spectrum of light? timeisnotmoney, Feb 27, 2015 at 8:05 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: Electrons and the Double Slit experiment questions TrickyDicky, Feb 27, 2015 at 5:29 PM

    4. Special and General Relativity

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      Latest: Energy-momentum tensor radiation-dominated universe. PeterDonis, Feb 27, 2015 at 4:12 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: Experimental Black Hole Physics mfb, Feb 27, 2015 at 7:24 PM

    7. Beyond the Standard Model

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      Latest: Is the graviton the only thing to find in LQG? MTd2, Feb 27, 2015 at 1:07 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Asteroid 99942 Apophis impacting the Earth in 2029 Vanadium 50, Feb 27, 2015 at 6:24 PM

    2. Cosmology

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      Latest: Is the "Big Bang Theory" is on it's last breath? Nugatory, Feb 27, 2015 at 7:18 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 solve this equation? timeisnotmoney, Feb 27, 2015 at 7:36 PM

    2. Calculus

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      Latest: Help with Taylor Series Stephen Tashi, Feb 27, 2015 at 6:47 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: Von Mises/Tresca Question timthereaper, Feb 27, 2015 at 7:52 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: Determine the Rate of Change of Pressure Across a Valve jim hardy, Feb 27, 2015 at 7:08 PM

    4. Electrical Engineering

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      Latest: Asking for Op Amp recommendations Loudhvx, Feb 27, 2015 at 6:16 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 Simon Bridge, Feb 27, 2015 at 6:33 PM

  6. Other Sciences

    1. Chemistry

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      Latest: Propagation of error: exponents brainpushups, Feb 27, 2015 at 7:27 PM

    2. Biology

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      Latest: Is it possible to scientifically discuss the dream world? mfb, Feb 27, 2015 at 6:38 PM

    3. Medical Sciences

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      Latest: Can pull up exercise increase height? DaveC426913, Feb 27, 2015 at 1:00 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

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      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

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      6. Social Sciences

      Latest: Iraqi unrest, Syrian unrest, and ISIS/ISIL/Daesh Astronuc, Feb 27, 2015 at 8:05 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: when people help they are not allowed to include answers? Greg Bernhardt, Feb 27, 2015 at 9:12 AM

    4. New Member Introductions

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      Latest: Hello PF NascentOxygen, Feb 27, 2015 at 5:35 PM