Physics Forums - The Fusion of Science and Community

    1. Science and Math Textbooks

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    2. Open Physics Practice Problems

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      Latest: READ ME: How to use this forum mfb, Feb 7, 2016 at 9:20 AM
    3. Academic Guidance

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    1. General Physics

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    2. Classical Physics

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      Latest: Capacitor ZapperZ, Feb 7, 2016 at 10:30 AM
    3. Quantum Physics

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      Latest: Measurement and basics of QM bhobba, Feb 7, 2016 at 11:17 AM
    4. Special and General Relativity

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      Latest: Orbit precessions - General Relativity vs Newton A.T., Feb 7, 2016 at 10:36 AM
    5. Atomic, Solid State, Comp. Physics

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      Latest: Proton electron mass ratio neilparker62, Feb 7, 2016 at 11:03 AM
    6. High Energy, Nuclear, Particle Physics

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      Latest: Strong force on hadrons mfb, Feb 7, 2016 at 9:27 AM
    7. Beyond the Standard Model

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      Latest: The act of renormalization Paul Colby, Feb 5, 2016 at 4:50 PM
    1. Astronomy and Astrophysics

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      Latest: What's going on in this snapshot from the ISS? 1oldman2, Feb 7, 2016 at 10:57 AM
    2. Cosmology

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      Latest: Getting a feel for how much the u expands Orodruin, Feb 7, 2016 at 10:57 AM
    1. General Math

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      Latest: Concentric circle jbriggs444, Feb 7, 2016 at 11:15 AM
    2. Calculus

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      Latest: The angle between two vectors Ki-nana18, Feb 7, 2016 at 11:11 AM
    3. Differential Equations

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      Latest: Interpreting constants HallsofIvy, Feb 7, 2016 at 8:00 AM
    4. Topology and Analysis

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    6. Differential Geometry

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    7. Set Theory, Logic, Probability, Statistics

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    1. General Engineering

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    2. Mechanical Engineering

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      Latest: Best lift-to-drag ratio scanflyer, Feb 7, 2016 at 10:25 AM
    3. Electrical Engineering

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      Latest: suggestions for delay circuit for dc power Salvador, Feb 7, 2016 at 10:45 AM
    4. Materials and Chemical Engineering

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    5. Nuclear Engineering

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    1. Chemistry

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      Latest: Type of reaction Colin Cheng, Feb 7, 2016 at 11:08 AM
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    3. Biology and Medical

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      Latest: Is life a matter of evolving chemistry? mfb, Feb 7, 2016 at 11:14 AM
    4. Computing and Technology

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    5. Earth

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      Latest: Mag 6.4 Earthquake near Pingtung, Taiwan Astronuc, Feb 6, 2016 at 7:40 PM
    1. General Discussion

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      Latest: Random Thoughts Part 5 Psinter, Feb 7, 2016 at 11:16 AM
    2. Science Fiction and Fantasy

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      Latest: Folktales for kids? Buzz Bloom, Feb 7, 2016 at 10:41 AM
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      Latest: Physics Practice Problems forum Greg Bernhardt, Feb 5, 2016 at 8:11 PM
    4. New Member Introductions

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