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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: common emitter amplifier Electronics Alexa431, Mar 2, 2015 at 5:10 PM

    2. Science and Math Textbooks

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      Latest: Re-learning Calculus 1 mrg, Mar 2, 2015 at 4:34 PM

    3. Academic Guidance

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      Latest: What prerequisites should i study? samnorris93, Mar 2, 2015 at 4:50 PM

    4. Career Guidance

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      Latest: Concerned about ability to succeed in job/grad school Choppy, Mar 2, 2015 at 1:23 PM

    5. Educators and Teaching

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      Latest: New to AP teaching - AP Physics 1 test help Redbelly98, Mar 1, 2015 at 12:00 PM

    6. STEM Learning Materials

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      Latest: Material that'll help improve write-ups for lab experiments? Vagn, Mar 1, 2015 at 3:36 PM

  2. Physics

    1. General Physics

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      Latest: Electric charge flow in AC and DC sophiecentaur, Mar 2, 2015 at 4:49 PM

    2. Classical Physics

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      Latest: Lagrangian density of Newtonian gravity Fede Lopez Ar, Mar 2, 2015 at 4:42 PM

    3. Quantum Physics

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      Latest: Uncertainty Principle cause infinite wavefunction solutions? a dull boy, Mar 2, 2015 at 2:46 PM

    4. Special and General Relativity

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      Latest: How Do Spinors Fit in With Differential Geometry samalkhaiat, Mar 2, 2015 at 5:03 PM

    5. Atomic, Solid State, Comp. Physics

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      Latest: Differences between Boltzmann and Fermi-Dirac distributions DrClaude, Mar 2, 2015 at 3:00 PM

    6. High Energy, Nuclear, Particle Physics

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      Latest: differential cross-section for partonic collisions RGevo, Mar 2, 2015 at 4:05 PM

    7. Beyond the Standard Model

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      Latest: Hubble Constant and Entropy wabbit, Mar 2, 2015 at 1:36 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

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      Latest: If You Could Tour The Solar System At The Speed Of Light! phinds, Mar 2, 2015 at 4:48 PM

    2. Cosmology

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      Latest: Extremely large Black Hole discovered 900M years after BB Tanelorn, Mar 2, 2015 at 3:55 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: Prove recurrence relation via mathematical induction ellipsis, Mar 2, 2015 at 4:43 PM

    2. Calculus

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      Latest: Regulated Integral with Convergence Factor "pi"mp, Mar 2, 2015 at 5:01 PM

    3. Differential Equations

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      Latest: system of diff eqs modeling tanks of brine nate9519, Mar 2, 2015 at 3:10 PM

    4. Topology and Analysis

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      Latest: Measurability of a function with finite codomain mathman, Mar 2, 2015 at 4:26 PM

    5. Linear and Abstract Algebra

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      Latest: su(2), so(3) and their representations mathwonk, Mar 2, 2015 at 11:54 AM

    6. Differential Geometry

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      Latest: Attempting to understand diffeomorphisms "Don't panic!", Mar 1, 2015 at 11:31 AM

    7. Set Theory, Logic, Probability, Statistics

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      Latest: Macro-states and dice DrClaude, Mar 2, 2015 at 3:04 PM

    8. Math Software and LaTeX

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      Latest: Looking for calculus program to find volume abcdef, Mar 2, 2015 at 1:38 PM

  5. Engineering

    1. General Engineering

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      Latest: how can I remove water from steam? timthereaper, Mar 2, 2015 at 5:10 PM

    2. Engineering Systems and Design

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      Latest: Control design for PWM converter Hubert Tchio, Mar 2, 2015 at 2:34 PM

    3. Mechanical Engineering

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      Mechanical Engineering

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      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Desperate for any help solving this problem Adam Harris, Mar 2, 2015 at 5:12 PM

    4. Electrical Engineering

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      Latest: What happens if "hot" wire touches Earth ground? zoki85, Mar 2, 2015 at 4:59 PM

    5. Materials and Chemical Engineering

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      Latest: Density of holes in valence band mfb, Mar 2, 2015 at 12:58 PM

    6. Nuclear Engineering

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      Latest: An idea for a Pu-238 replacement for NASA space missions Hologram0110, Mar 2, 2015 at 1:31 PM

  6. Other Sciences

    1. Chemistry

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      Latest: where do you buy your chemicals from? SteamKing, Mar 2, 2015 at 4:21 PM

    2. Biology

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      Latest: What might cell membranes look like on Titan? gravenewworld, Mar 2, 2015 at 3:41 PM

    3. Medical Sciences

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      Latest: should i add a Phosphorus supplement to my diet? Ryan_m_b, Mar 2, 2015 at 3:24 PM

    4. Programming and Computer Science

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      Latest: Fortran array help phyzguy, Mar 2, 2015 at 3:02 PM

    5. Earth

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      Latest: Impact: Earth! A meteor/comet impact simulator zoki85, Mar 2, 2015 at 5:14 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

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      Latest: smoky 3D complex network analysis that evolves in time Digitalism, Mar 2, 2015 at 4:46 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, Mar 2, 2015 at 4:55 PM

    3. Feedback and Announcements

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      Feedback and Announcements

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      1. PF Member Awards 2014

      Latest: Email Notifications? Meesh, Mar 2, 2015 at 3:26 PM

    4. New Member Introductions

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      Latest: Hello, PF! Greg Bernhardt, Mar 2, 2015 at 4:55 PM