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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 Emily_20, Feb 28, 2015 at 8:05 AM

    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: How to become a physicist from an engineer? Vanadium 50, Feb 28, 2015 at 6:39 AM

    4. Career Guidance

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      Latest: As a High school senior, my knowledge of physics is limited MohammedRady97, Feb 28, 2015 at 7:58 AM

    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: Newton's gravitational formula wrong? DaleSpam, Feb 28, 2015 at 8:01 AM

    2. Classical Physics

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      Latest: Excess electrons Drakkith, Feb 28, 2015 at 2:11 AM

    3. Quantum Physics

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      Latest: Property related to Hermitian operators. amjad-sh, Feb 28, 2015 at 8:01 AM

    4. Special and General Relativity

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      Latest: Squared in e=mc^2? PWiz, Feb 28, 2015 at 6:16 AM

    5. Atomic, Solid State, Comp. Physics

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      23,953
      Latest: Molecular Hydrogen absorption spectrum lightarrow, Feb 28, 2015 at 6:18 AM

    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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      Messages:
      57,422
      Latest: Hubble Constant and Entropy Jimster41, Feb 28, 2015 at 7:58 AM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      86,958
      Latest: Earth and moon barycenter question. dean barry, Feb 28, 2015 at 7:02 AM

    2. Cosmology

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      62,883
      Latest: Extremely large Black Hole discovered 900M years after BB Orien Rigney, Feb 28, 2015 at 7:44 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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      Messages:
      111,843
      Latest: Fun maths question, correlation? bahamagreen, Feb 28, 2015 at 5:00 AM

    2. Calculus

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      74,192
      Latest: Help with Taylor Series MohammedRady97, Feb 28, 2015 at 6:25 AM

    3. Differential Equations

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      Messages:
      20,968
      Latest: Fourier Transform Orodruin, Feb 28, 2015 at 4:13 AM

    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

      Discussions:
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      53,144
      Latest: su(2), so(3) and their representations Lapidus, Feb 28, 2015 at 5:29 AM

    6. Differential Geometry

      Discussions:
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      Messages:
      21,116
      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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      38,789
      Latest: confusion over definition of relations in set theory "Don't panic!", Feb 28, 2015 at 4:42 AM

    8. Math Software and LaTeX

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      19,462
      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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      Messages:
      35,495
      Latest: shaft design problem mohamad92, Feb 28, 2015 at 7:31 AM

    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 7:45 AM

    4. Electrical Engineering

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      Latest: What is the polarity of a Pn junction diode jim hardy, Feb 28, 2015 at 6:27 AM

    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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      Messages:
      34,398
      Latest: The Nuclear Power Thread nikkkom, Feb 28, 2015 at 7:12 AM

  6. Other Sciences

    1. Chemistry

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      37,364
      Latest: term 'Iso ' in naming (common name) Borek, Feb 28, 2015 at 3:32 AM

    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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      22,194
      Latest: Can pull up exercise increase height? DaveC426913, Feb 28, 2015 at 7:22 AM

    4. Programming and Computer Science

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      28,481
      Latest: Run Javascript after DOM is ready Filip Larsen, Feb 27, 2015 at 2:37 PM

    5. Earth

      Discussions:
      1,740
      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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      5,983
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      43,410

      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: PF Photo Contest - Red Eye Gravy (2/28-3/6) ZapperZ, Feb 28, 2015 at 7:25 AM

    2. Science Fiction and Fantasy

      Discussions:
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      10,803

      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 Raghav Gupta, Feb 28, 2015 at 6:41 AM

    4. New Member Introductions

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      Latest: hello all Suraj M, Feb 28, 2015 at 7:35 AM