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: Should I take Complex Analysis? Am I ready? vela, May 22, 2015 at 2:20 PM
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    4. Educators and Teaching

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      Latest: Creating the student centered Lab fishspawned, May 22, 2015 at 8:09 AM
    5. STEM Learning Materials

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      Latest: High Frequency Transistor Tutorials mfb, May 22, 2015 at 11:19 AM
    1. General Physics

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      Latest: calculation of the energy from a pulse Sara87, May 22, 2015 at 3:37 PM
    2. Classical Physics

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    3. Quantum Physics

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    4. Special and General Relativity

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      Latest: Unit Error in Oppenheimer-Snyder 1939 paper? fzero, May 22, 2015 at 3:26 PM
    5. Atomic, Solid State, Comp. Physics

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    6. High Energy, Nuclear, Particle Physics

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      Latest: What is a Decay width really, qualitatively? AlanKirby, May 22, 2015 at 2:13 PM
    7. Beyond the Standard Model

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      Latest: Thoughts on Quantum Holonomy Theory ? Jimster41, May 22, 2015 at 3:31 PM
    1. Astronomy and Astrophysics

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      Latest: Can you have an antimatter black hole Chronos, May 22, 2015 at 3:37 PM
    2. Cosmology

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      Latest: Conformal symmetry of FRW spacetime jcap, May 22, 2015 at 2:14 PM
    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: Matrix with fractions for indices? jk22, May 22, 2015 at 1:07 PM
    2. Calculus

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    3. Differential Equations

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      Latest: existence of general solution, 2nd order ODE popopopd, May 22, 2015 at 1:37 PM
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    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: Probability of co-occurence FactChecker, May 22, 2015 at 6:32 AM
    8. Math Software and LaTeX

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      Latest: Implementation of Fresnel Diffraction in MatLab ecastro, May 22, 2015 at 1:44 AM
    1. General Engineering

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    2. Engineering Systems and Design

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    3. Mechanical Engineering

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      Latest: Torque Needed to Turn a Capstan Mech13, May 22, 2015 at 12:56 PM
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    5. Materials and Chemical Engineering

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    6. Nuclear Engineering

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      Latest: Nuclear Powered Peaker Plants? QuantumPion, May 22, 2015 at 10:11 AM
    1. Chemistry

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    3. Medical Sciences

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      Latest: Why do we enjoy listening to music? Evo, May 21, 2015 at 5:29 PM
    4. Programming and Computer Science

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      Latest: I love perl FactChecker, May 22, 2015 at 3:32 PM
    5. Earth

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      Latest: Measuring How Many Days Are in a Year - Comments Janus, May 22, 2015 at 2:23 PM
    6. Computing and Technology

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      Latest: Is Adobe trying to pull a fast one? StevieTNZ, May 21, 2015 at 4:40 PM
    1. General Discussion

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      Latest: I so hate hospitals :( Choppy, May 22, 2015 at 2:03 PM
    2. Science Fiction and Fantasy

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      Latest: Anyone else see the new Mad Max? PWiz, May 22, 2015 at 1:47 PM
    3. Feedback and Announcements

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      Latest: Using the conversation interface Greg Bernhardt, May 22, 2015 at 11:19 AM
    4. New Member Introductions

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      Latest: Finally signed up :) Greg Bernhardt, May 22, 2015 at 3:22 PM