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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: Convergence or Divergence of a series LCKurtz, Feb 27, 2015 at 10:44 AM

    2. Science and Math Textbooks

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      Latest: Introductory book on semiconductors? Gytax, Feb 27, 2015 at 10:20 AM

    3. Academic Guidance

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      Latest: Considering getting a B.A in Physics at UNC-Chapel Hill DaleSpam, Feb 27, 2015 at 10:49 AM

    4. Career Guidance

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      Latest: As a High school senior, my knowledge of physics is limited megatyler30, Feb 27, 2015 at 10:40 AM

    5. Educators and Teaching

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      Latest: Why are students permitted to use calculators on AP math? Mark44, Feb 27, 2015 at 10:44 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? LastOneStanding, Feb 27, 2015 at 10:50 AM

    2. Classical Physics

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      Latest: Conservative forces MohammedRady97, Feb 27, 2015 at 10:32 AM

    3. Quantum Physics

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      Latest: Question on validity of Hiesenberg's Uncertainty principle tijana, Feb 27, 2015 at 10:43 AM

    4. Special and General Relativity

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      Latest: Active/Passive Diffeomorphisms – clarification on Rovelli’s Fredrik, Feb 27, 2015 at 10:51 AM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Finite square well potential numerical solution Quantum Defect, Feb 27, 2015 at 10:09 AM

    6. High Energy, Nuclear, Particle Physics

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      Latest: Momentum-Parity, ground state quantum no even-even odd-odd binbagsss, Feb 27, 2015 at 10:20 AM

    7. Beyond the Standard Model

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      Latest: Hubble Constant and Entropy Demystifier, Feb 27, 2015 at 10:30 AM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: Globular cluster ejected from M87 Greg Bernhardt, Feb 27, 2015 at 10:14 AM

    2. Cosmology

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      Latest: Extremely large Black Hole discovered 900M years after BB Tanelorn, Feb 27, 2015 at 10:27 AM

    3. Stargazing and Telescopes

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      Latest: Planning to buy a first telescope? PAllen, Feb 26, 2015 at 10:11 PM

  4. Mathematics

    1. General Math

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      Latest: How to best read Euclid's Elements micromass, Feb 27, 2015 at 9:48 AM

    2. Calculus

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      Latest: Addition property of integration intervals proof micromass, Feb 27, 2015 at 10:53 AM

    3. Differential Equations

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      Latest: Piecewise MATLAB ode45 problem for Lennard-Jones DrClaude, Feb 27, 2015 at 8:22 AM

    4. Topology and Analysis

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      Latest: Taylor series wabbit, Feb 27, 2015 at 6:34 AM

    5. Linear and Abstract Algebra

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      Latest: Constructing a field of 4 elements micromass, Feb 27, 2015 at 10:03 AM

    6. Differential Geometry

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      Latest: Stuck with tensors, need a push Corbeau, Feb 27, 2015 at 9:13 AM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: confusion over definition of relations in set theory "Don't panic!", Feb 27, 2015 at 10:22 AM

    8. Math Software and LaTeX

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      Latest: Understanding this Computer program Slightly, Feb 26, 2015 at 8:32 PM

  5. Engineering

    1. General Engineering

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      Latest: List of Metals or Alloys With Fatigue Limits? thankz, Feb 26, 2015 at 12:30 PM

    2. Engineering Systems and Design

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      Latest: 4 in lift mechanism using a continuous servo? imawesomeYKI, Feb 27, 2015 at 7:34 AM

    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 Purple_Dan, Feb 27, 2015 at 10:42 AM

    4. Electrical Engineering

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      Latest: 3 phase generator anorlunda, Feb 27, 2015 at 10:12 AM

    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: The Nuclear Power Thread Jon Richfield, Feb 27, 2015 at 10:23 AM

  6. Other Sciences

    1. Chemistry

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      Latest: Corrosion in metal pipe carrying DC current? amrmohammed, Feb 26, 2015 at 10:40 PM

    2. Biology

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      Latest: "What colour is this dress" craze phinds, Feb 27, 2015 at 9:49 AM

    3. Medical Sciences

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      Latest: ...incarceration or institutionalization can delay emotional growth WWGD, Feb 24, 2015 at 10:00 PM

    4. Programming and Computer Science

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      Latest: Run Javascript after DOM is ready harborsparrow, Feb 27, 2015 at 10:40 AM

    5. Earth

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      Latest: Large crater in Siberia Bystander, Feb 27, 2015 at 10:23 AM

    6. Computing and Technology

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      Computing and Technology

      Sub-Forums

      1. Calculators

      Latest: Mobile browsers used to browse the web for free. Greg Bernhardt, Feb 27, 2015 at 9:53 AM

  7. PF Lounge

    1. General Discussion

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      General Discussion

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      1. Current Events

      2. History and Humanities

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      6. Social Sciences

      Latest: Iraqi unrest, Syrian unrest, and ISIS/ISIL/Daesh mheslep, Feb 27, 2015 at 9:37 AM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: Killing Earth with a cosmic flashlight AmoebaMan, Feb 26, 2015 at 9:17 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: Greetings, aliens! Greg Bernhardt, Feb 27, 2015 at 10:28 AM