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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: Sliding on ice Chestermiller, Mar 4, 2015 at 12:54 PM

    2. Science and Math Textbooks

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      Latest: Carl M. Bender (Advanced Mathematical Methods ...) Runei, Mar 4, 2015 at 5:39 AM

    3. Academic Guidance

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      Latest: How do I teach myself physics? David Carroll, Mar 4, 2015 at 12:43 PM

    4. Career Guidance

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      Latest: Areas of electrical engineering with the most potential donpacino, Mar 4, 2015 at 11:19 AM

    5. Educators and Teaching

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      Latest: Looking for feedback on physics animations Bystander, Mar 4, 2015 at 1:59 AM

    6. STEM Learning Materials

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      Latest: Quantum Mechanics learning resource videos Maylis, Mar 4, 2015 at 9:35 AM

  2. Physics

    1. General Physics

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      Latest: No such thing as instantaneous speed? write4u, Mar 4, 2015 at 12:18 PM

    2. Classical Physics

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      Latest: Mythbusters: Blow your own sail Andrew Mason, Mar 4, 2015 at 12:41 PM

    3. Quantum Physics

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      Latest: Haag's Theorem in QFT atyy, Mar 4, 2015 at 12:04 PM

    4. Special and General Relativity

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      Latest: I've got a question about relative time. PeroK, Mar 4, 2015 at 12:43 PM

    5. Atomic, Solid State, Comp. Physics

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      Latest: nearly free electron model - band gap unscientific, Mar 4, 2015 at 11:23 AM

    6. High Energy, Nuclear, Particle Physics

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      Latest: What functions of fields describe particles? matteo137, Mar 3, 2015 at 2:36 PM

    7. Beyond the Standard Model

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      Latest: Gravity from entanglement friend, Mar 4, 2015 at 10:11 AM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: why can't we reach to Speed of light at Space?? Jobrag, Mar 4, 2015 at 12:29 PM

    2. Cosmology

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      Latest: Inflation and WMAP skydivephil, Mar 4, 2015 at 12:23 PM

    3. Stargazing and Telescopes

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      Latest: Here are some astrophotos I've taken lately davenn, Mar 3, 2015 at 9:25 PM

  4. Mathematics

    1. General Math

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      Latest: A suggested operational definition of tensors Will Flannery, Mar 4, 2015 at 12:33 PM

    2. Calculus

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      Latest: Fundamental theorem of calculus - question & proof verifying "Don't panic!", Mar 4, 2015 at 10:18 AM

    3. Differential Equations

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      Latest: Understanding coupled Runga Kutta derivation ognik, Mar 2, 2015 at 9:35 PM

    4. Topology and Analysis

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      Latest: Clarification about Poincaré's conjecture jk22, Mar 4, 2015 at 10:39 AM

    5. Linear and Abstract Algebra

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      Latest: Coefficients on the p-adic expansions MostlyHarmless, Mar 4, 2015 at 11:51 AM

    6. Differential Geometry

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      Latest: Koszul connexion lavinia, Mar 4, 2015 at 7:39 AM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Macro-states and dice unmantle, Mar 4, 2015 at 9:52 AM

    8. Math Software and LaTeX

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      Latest: Referring to elements of a table in Mathematica MostlyHarmless, Mar 4, 2015 at 12:41 PM

  5. Engineering

    1. General Engineering

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      Latest: YOU!: Fix the US Energy Crisis OmCheeto, Mar 4, 2015 at 12:32 PM

    2. Engineering Systems and Design

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      Latest: Control design for PWM converter Hubert Tchio, Mar 4, 2015 at 7:52 AM

    3. Mechanical Engineering

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      Mechanical Engineering

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Does the gear ratio in a differential effect pitching loads drewradford, Mar 4, 2015 at 12:54 PM

    4. Electrical Engineering

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      Latest: Whats the point of transistors? Jd0g33, Mar 4, 2015 at 12:54 PM

    5. Materials and Chemical Engineering

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      Latest: Reflectance or reflectivity spectrum interpretation fog37, Mar 4, 2015 at 9:08 AM

    6. Nuclear Engineering

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      Latest: An idea for a Pu-238 replacement for NASA space missions Hologram0110, Mar 4, 2015 at 8:01 AM

  6. Other Sciences

    1. Chemistry

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      Latest: How good is HCN addition to aromatic conjugated aldehyde? AURUM, Mar 4, 2015 at 10:56 AM

    2. Biology

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      Latest: Understanding 23andme results blud, Mar 4, 2015 at 12:42 AM

    3. Medical Sciences

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      Latest: is there any nutritional benefit to eating moltose dextrin Greg Bernhardt, Mar 4, 2015 at 9:12 AM

    4. Programming and Computer Science

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      Latest: [Fortran] Rounding up Random Numbers Mark44, Mar 4, 2015 at 12:09 PM

    5. Earth

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      Latest: Villarrica volcano davenn, Mar 3, 2015 at 9:39 PM

    6. Computing and Technology

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      Computing and Technology

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      1. Calculators

      Latest: Is 4GB of VRAM overkill for 1080p gaming? Hercuflea, Mar 2, 2015 at 10:56 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: Nature of Theory (aka Do Faeries Live in the Multiverse?) Silicon Waffle, Mar 4, 2015 at 12:38 PM

    2. Science Fiction and Fantasy

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      Science Fiction and Fantasy

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      1. Science Fiction Writing

      Latest: Who is your favorite SciFi character? Khatti, Mar 4, 2015 at 4:30 AM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: Walking on eggshells Nugatory, Mar 4, 2015 at 11:14 AM

    4. New Member Introductions

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      Latest: Hello. New guy checking in. Greg Bernhardt, Mar 4, 2015 at 12:38 PM