Physics Forums - The Fusion of Science and Community

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      Latest: The best reference book Natasha Rivol, Jul 1, 2015 at 6:26 PM
    1. General Physics

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    2. Classical Physics

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    3. Quantum Physics

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    4. Special and General Relativity

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      Latest: Energy conservation and wormholes PWiz, Jul 2, 2015 at 11:41 AM
    5. Atomic, Solid State, Comp. Physics

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      Latest: current density free electron gas Greg Bernhardt, Jul 1, 2015 at 7:00 PM
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    7. Beyond the Standard Model

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      Latest: Unruh effect and Entropy naima, Jul 2, 2015 at 8:26 AM
    1. Astronomy and Astrophysics

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      Latest: Why no telescopes on the moon? Jon Richfield, Jul 2, 2015 at 4:09 AM
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    3. Stargazing and Telescopes

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    1. General Math

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      Latest: How is π interpreted? micromass, Jul 2, 2015 at 10:49 AM
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    4. Topology and Analysis

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      Latest: smallest subspace of a vector space WWGD, Jul 2, 2015 at 11:20 AM
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      Latest: Implicit function theorem modnarandom, Jul 1, 2015 at 4:43 PM
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    8. Math Software and LaTeX

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      Latest: MATLAB and the command fprintf GiuseppeR7, Jul 2, 2015 at 7:58 AM
    1. General Engineering

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    2. Engineering Systems and Design

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      Latest: Basic Thermodynamics Question insightful, Jul 2, 2015 at 10:56 AM
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      Latest: Equivalent DC-current of an AC-Current Windadct, Jul 2, 2015 at 11:30 AM
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      Latest: Japan Earthquake: nuclear plants part 2 etudiant, Jul 2, 2015 at 4:39 AM
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    5. Earth

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    1. General Discussion

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      Latest: Random Thoughts part 4 WWGD, Jul 2, 2015 at 11:34 AM
    2. Science Fiction and Fantasy

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      Latest: Photons and energy nathan mcgrath, Jul 2, 2015 at 11:41 AM