Physics Forums - The Fusion of Science and Community

    1. Science and Math Textbooks

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      Latest: Cosmology books for high school students jedishrfu, Mar 1, 2015 at 8:42 PM
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    4. 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
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    1. General Physics

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      Latest: Thermal radiation intensity Hypatio, Mar 2, 2015 at 1:09 AM
    2. Classical Physics

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      Latest: Mythbusters: Blow your own sail A.T., Mar 2, 2015 at 1:17 AM
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    4. Special and General Relativity

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      Latest: Time DIlation and Observation bcrowell, Mar 1, 2015 at 11:36 PM
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    7. Beyond the Standard Model

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      Latest: Hubble Constant and Entropy Jimster41, Mar 1, 2015 at 8:03 PM
    1. Astronomy and Astrophysics

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      Latest: Horizontal Branch Star Drakkith, Mar 2, 2015 at 12:03 AM
    2. Cosmology

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    3. Stargazing and Telescopes

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      Latest: Planning to buy a first telescope? jim hardy, Feb 27, 2015 at 12:44 PM
    1. General Math

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      Latest: Exponentiation of mods Sam Anderson, Mar 2, 2015 at 1:29 AM
    2. Calculus

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      Latest: integration help travis_salyer, Mar 2, 2015 at 1:19 AM
    3. Differential Equations

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      Latest: Understanding coupled Runga Kutta derivation ognik, Mar 1, 2015 at 4:59 PM
    4. Topology and Analysis

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      Latest: Clarification about Poincaré's conjecture lavinia, Mar 1, 2015 at 5:00 PM
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    6. Differential Geometry

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      Latest: Attempting to understand diffeomorphisms "Don't panic!", Mar 1, 2015 at 11:31 AM
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    8. Math Software and LaTeX

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      Latest: matlab intro DrClaude, Mar 1, 2015 at 1:44 PM
    1. General Engineering

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    2. Engineering Systems and Design

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    3. Mechanical Engineering

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      Latest: Convective heat transfer coefficient in channel leonita, Mar 2, 2015 at 12:38 AM
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    5. Materials and Chemical Engineering

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      Latest: Understanding of crystal wave vector Urmi Roy, Mar 1, 2015 at 11:09 PM
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    1. Chemistry

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      Latest: Molasses vs. Rust kokolyia, Mar 2, 2015 at 12:25 AM
    2. Biology

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      Latest: Neanderthal fossils... never frozen? Evo, Mar 1, 2015 at 10:34 PM
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      Latest: Rounding up Random Numbers Mark44, Mar 1, 2015 at 9:32 PM
    5. Earth

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      Latest: Impact: Earth! A meteor/comet impact simulator OmCheeto, Mar 2, 2015 at 12:44 AM
    6. Computing and Technology

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    1. General Discussion

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      Latest: Portugal and the war on drugs jedishrfu, Mar 2, 2015 at 12:43 AM
    2. Science Fiction and Fantasy

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