Physics Forums - The Fusion of Science and Community

    1. Science and Math Textbooks

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    2. Academic Guidance

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      Latest: Deciding Between Physics or Nuclear Physics gleem, May 24, 2015 at 7:43 AM
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    4. Educators and Teaching

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      Latest: Best Books to understand Noise baby_1, May 24, 2015 at 5:01 AM
    1. General Physics

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    2. Classical Physics

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    3. Quantum Physics

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      Latest: Vector Operator blue_leaf77, May 24, 2015 at 7:53 AM
    4. Special and General Relativity

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      Latest: Simplifying this equation? physciencer, May 24, 2015 at 7:23 AM
    5. Atomic, Solid State, Comp. Physics

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    6. Beyond the Standard Model

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      Latest: Condensed matter physics, area laws & LQG? atyy, May 23, 2015 at 12:14 AM
    1. Astronomy and Astrophysics

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      Latest: Center of mass - cant find error in derivation Kyouran, May 24, 2015 at 8:05 AM
    2. Cosmology

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      Latest: Inflation : Expansion of space aboro, May 24, 2015 at 7:55 AM
    3. Stargazing and Telescopes

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      Latest: Virgo Supercluster Chronos, May 22, 2015 at 3:44 AM
    1. General Math

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      Latest: Very hard problems about work Kamakiri, May 24, 2015 at 8:16 AM
    2. Calculus

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      Latest: Analytic continuation of Airy function Greg Bernhardt, May 24, 2015 at 7:16 AM
    3. Differential Equations

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    4. Topology and Analysis

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      Latest: Do points have limits? pwsnafu, May 23, 2015 at 5:43 PM
    5. Linear and Abstract Algebra

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    6. Differential Geometry

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      Latest: Help me check a fact about Berry phase andresB, May 22, 2015 at 11:53 AM
    7. Set Theory, Logic, Probability, Statistics

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      Latest: Toss coin probabilities (Bino vs Gauss approx) ChrisVer, May 24, 2015 at 4:55 AM
    8. Math Software and LaTeX

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    1. General Engineering

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    2. Engineering Systems and Design

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      Latest: Solar energy storage systems BernieM, May 23, 2015 at 3:14 PM
    3. Mechanical Engineering

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      Latest: Drive Chain Connection George Zucas, May 24, 2015 at 6:35 AM
    4. Electrical Engineering

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      Latest: Temperature sensor with BJT? NascentOxygen, May 24, 2015 at 8:13 AM
    5. Materials and Chemical Engineering

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    6. Nuclear Engineering

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    1. Chemistry

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      Latest: Lids on Triton X-100/Tween 20 Ygggdrasil, May 24, 2015 at 6:26 AM
    2. Biology

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    3. Medical Sciences

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      Latest: Is sleeping less always good? crador, May 24, 2015 at 2:12 AM
    4. Programming and Computer Science

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      Latest: Combinatorial algorithm secondprime, May 24, 2015 at 7:44 AM
    5. Earth

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      Latest: Measuring How Many Days Are in a Year - Comments PWiz, May 24, 2015 at 6:09 AM
    6. Computing and Technology

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      Latest: Best calculator in the world odobo, May 24, 2015 at 7:58 AM
    1. General Discussion

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      Latest: What is money ? phinds, May 24, 2015 at 7:32 AM
    2. Science Fiction and Fantasy

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      Latest: Anyone else see the new Mad Max? phion, May 24, 2015 at 6:59 AM
    3. Feedback and Announcements

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      Latest: We are now arxiv.org pingback enabled Greg Bernhardt, May 23, 2015 at 7:53 PM
    4. New Member Introductions

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      Latest: Hello and thanks for having me. Greg Bernhardt, May 23, 2015 at 10:52 PM