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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: maximum torque amy098yay, Feb 28, 2015 at 2:56 PM

    2. Science and Math Textbooks

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      Latest: Looking for a good book explaining physics of a quadcopter Chris Haskin, Feb 28, 2015 at 12:15 AM

    3. Academic Guidance

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      Latest: Choosing Graduate Advisor: Finding one's Interests Subdot, Feb 28, 2015 at 2:38 PM

    4. Career Guidance

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      Latest: As a High school senior, my knowledge of physics is limited samnorris93, Feb 28, 2015 at 1:39 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: The Doppler Effect on a still object? Joshua Lauchu, Feb 28, 2015 at 2:57 PM

    2. Classical Physics

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      Latest: Why Gauss's law works when charge enclosed is not uniform? Jae, Feb 28, 2015 at 2:38 PM

    3. Quantum Physics

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      Latest: Property related to Hermitian operators. Orodruin, Feb 28, 2015 at 2:16 PM

    4. Special and General Relativity

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      Latest: Will this method yield absolute synch? Ibix, Feb 28, 2015 at 2:38 PM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Reciprocal lattice vector M Quack, Feb 28, 2015 at 12:33 PM

    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: Hubble Constant and Entropy ChrisVer, Feb 28, 2015 at 2:34 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Earth and moon barycenter question. Garth, Feb 28, 2015 at 10:42 AM

    2. Cosmology

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      Latest: Extremely large Black Hole discovered 900M years after BB Garth, Feb 28, 2015 at 1:19 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: Polar and azimuth angle between two points in 3D space CraigH, Feb 28, 2015 at 2:56 PM

    2. Calculus

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      Latest: Help with Taylor Series KevinMWHM, Feb 28, 2015 at 2:25 PM

    3. Differential Equations

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      Latest: Fourier Transform joshmccraney, Feb 28, 2015 at 2:23 PM

    4. Topology and Analysis

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      Latest: Maxmimum\Minimum modulus principle Hawkeye18, Feb 28, 2015 at 1:02 PM

    5. Linear and Abstract Algebra

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      Latest: Green's Function - modified operator RightFresh, Feb 28, 2015 at 12:47 PM

    6. Differential Geometry

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      Latest: Is this a valid parametrization of the torus? hideelo, Feb 28, 2015 at 1:50 PM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Fitting distribution to histogram with low number of counts Stephen Tashi, Feb 28, 2015 at 11:36 AM

    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: YOU!: Fix the US Energy Crisis OmCheeto, Feb 28, 2015 at 1:09 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 montoyas7940, Feb 28, 2015 at 2:07 PM

    4. Electrical Engineering

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      Latest: A couple inverting op-amp questions. Jd0g33, Feb 28, 2015 at 2:11 PM

    5. Materials and Chemical Engineering

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      Latest: Buried water pipes freeze-has been cold-the sun comes out Baluncore, Feb 28, 2015 at 6:20 AM

    6. Nuclear Engineering

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      Latest: Question about radioactivity Astronuc, Feb 28, 2015 at 2:15 PM

  6. Other Sciences

    1. Chemistry

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      Latest: The Smell of Garlic and Enzymatic Oxidation dncosar, Feb 28, 2015 at 11:00 AM

    2. Biology

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      Latest: Insulin Resistance and Cell Signaling Evo, Feb 28, 2015 at 2:39 PM

    3. Medical Sciences

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      Latest: Can pull up exercise increase height? Mark44, Feb 28, 2015 at 11:01 AM

    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

      3. Photography

      4. Fun, Photos and Games

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      6. Social Sciences

      Latest: Ukrainian mess russ_watters, Feb 28, 2015 at 2:11 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 Czcibor, Feb 28, 2015 at 8:56 AM

    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 Raghav Gupta, Feb 28, 2015 at 1:19 PM

    4. New Member Introductions

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      Latest: An Introduction Saraswathy, Feb 28, 2015 at 2:01 PM