Physics Forums - The Fusion of Science and Community

    1. Science and Math Textbooks

      Discussions:
      4,225
      Messages:
      24,170
      Latest: Old Mathematical Books certainly, Apr 25, 2015 at 6:19 AM
    2. Academic Guidance

      Discussions:
      21,540
      Messages:
      176,860
    3. Career Guidance

      Discussions:
      5,097
      Messages:
      40,744
    4. Educators and Teaching

      Discussions:
      318
      Messages:
      3,935
    5. STEM Learning Materials

      Discussions:
      624
      Messages:
      3,758
      Latest: Matlab for HS students? jedishrfu, Apr 24, 2015 at 3:29 PM
    1. General Physics

      Discussions:
      37,438
      Messages:
      299,933
      Latest: Resistance or current gracy, Apr 25, 2015 at 7:26 AM
    2. Classical Physics

      Discussions:
      20,991
      Messages:
      150,442
      Latest: Active force of spring on mass (D'alemberts) mfb, Apr 25, 2015 at 6:52 AM
    3. Quantum Physics

      Discussions:
      18,034
      Messages:
      179,801
      Latest: Question about Virtual Particles Gerinski, Apr 25, 2015 at 7:26 AM
    4. Special and General Relativity

      Discussions:
      14,872
      Messages:
      217,468
    5. Atomic, Solid State, Comp. Physics

      Discussions:
      5,070
      Messages:
      24,373
      Latest: speed of light is constant? Swetha.M.L, Apr 25, 2015 at 7:39 AM
    6. High Energy, Nuclear, Particle Physics

      Discussions:
      5,936
      Messages:
      42,416
      Latest: Polarization vectors of spin-1 particles vanhees71, Apr 25, 2015 at 7:22 AM
    7. Beyond the Standard Model

      Discussions:
      4,695
      Messages:
      57,864
      Latest: Alain homers with Ali and Slava on base Markus, Apr 25, 2015 at 5:17 AM
    1. Astronomy and Astrophysics

      Discussions:
      9,877
      Messages:
      88,592
      Latest: Calculating albedo and eccentricity mfb, Apr 25, 2015 at 7:04 AM
    2. Cosmology

      Discussions:
      4,986
      Messages:
      64,796
      Latest: Observational difference between OS and FLRW wabbit, Apr 25, 2015 at 2:54 AM
    3. Stargazing and Telescopes

      Discussions:
      445
      Messages:
      4,508
      Latest: What stars/star systems can I see tonight? davenn, Apr 24, 2015 at 6:21 PM
    1. General Math

      Discussions:
      15,756
      Messages:
      113,124
      Latest: How many potential ingress glyphs are there? mfb, Apr 25, 2015 at 7:09 AM
    2. Calculus

      Discussions:
      12,981
      Messages:
      74,872
      Latest: about square root Emmanuel_Euler, Apr 25, 2015 at 1:08 AM
    3. Differential Equations

      Discussions:
      4,699
      Messages:
      21,252
      Latest: Physical meaning of KdV equation Simon Bridge, Apr 25, 2015 at 7:14 AM
    4. Topology and Analysis

      Discussions:
      1,059
      Messages:
      6,699
      Latest: Complex Analysis: Contour Integral nateHI, Apr 24, 2015 at 4:54 PM
    5. Linear and Abstract Algebra

      Discussions:
      8,633
      Messages:
      53,400
      Latest: Convolution on groups jbunniii, Apr 24, 2015 at 11:18 AM
    6. Differential Geometry

      Discussions:
      3,472
      Messages:
      21,367
      Latest: Noethers theorem, physics and mathematics JVM, Apr 22, 2015 at 9:20 AM
    7. Set Theory, Logic, Probability, Statistics

      Discussions:
      6,962
      Messages:
      39,098
      Latest: Derive mgf bivariate normal distribution Lewis7879, Apr 25, 2015 at 1:17 AM
    8. Math Software and LaTeX

      Discussions:
      4,702
      Messages:
      19,691
      Latest: Latex- how to do single quotes? Simon Bridge, Apr 24, 2015 at 7:31 PM
    1. General Engineering

      Discussions:
      5,233
      Messages:
      36,136
      Latest: Homemade battery packs 48volts rbelli1, Apr 25, 2015 at 12:30 AM
    2. Engineering Systems and Design

      Discussions:
      1,923
      Messages:
      11,985
      Latest: Modeling a Pulley Hellmut1956, Apr 25, 2015 at 6:39 AM
    3. Mechanical Engineering

      Discussions:
      10,593
      Messages:
      66,800
      Latest: Anti-Lag Turbo Supercharger rcgldr, Apr 25, 2015 at 2:28 AM
    4. Electrical Engineering

      Discussions:
      16,171
      Messages:
      113,312
      Latest: Fourier Decomposition BruceW, Apr 25, 2015 at 6:59 AM
    5. Materials and Chemical Engineering

      Discussions:
      2,603
      Messages:
      10,388
      Latest: Torus material TESL@, Apr 24, 2015 at 10:05 PM
    6. Nuclear Engineering

      Discussions:
      1,565
      Messages:
      34,677
      Latest: Shippingport incore instrumentation Muti, Apr 25, 2015 at 6:53 AM
    1. Chemistry

      Discussions:
      7,196
      Messages:
      38,004
      Latest: Absorbance - UV Spectroscopy Borek, Apr 25, 2015 at 1:40 AM
    2. Biology

      Discussions:
      5,790
      Messages:
      47,309
    3. Medical Sciences

      Discussions:
      2,197
      Messages:
      22,415
      Latest: What makes effective UV - proof clothing? Drakkith, Apr 24, 2015 at 10:55 PM
    4. Programming and Computer Science

      Discussions:
      4,672
      Messages:
      29,085
      Latest: Harmonics present in an Image FactChecker, Apr 25, 2015 at 6:17 AM
    5. Earth

      Discussions:
      1,758
      Messages:
      20,509
      Latest: BIG quake coming in NOW davenn, Apr 25, 2015 at 5:49 AM
    6. Computing and Technology

      Discussions:
      6,021
      Messages:
      43,773
      Latest: TI-NSpire battery door / cover CalcNerd, Apr 24, 2015 at 1:33 PM
    1. General Discussion

      Discussions:
      38,684
      Messages:
      983,281
      Latest: Science/Math Pick up lines chemistryrules, Apr 25, 2015 at 7:19 AM
    2. Science Fiction and Fantasy

      Discussions:
      638
      Messages:
      11,203
      Latest: "Chewie, we're home" jedishrfu, Apr 24, 2015 at 11:13 PM
    3. Feedback and Announcements

      Discussions:
      3,774
      Messages:
      43,551
      Latest: Problem with IE and posting to the forum davenn, Apr 25, 2015 at 6:37 AM
    4. New Member Introductions

      Discussions:
      1,620
      Messages:
      5,009
      Latest: hi there...I'm new here sushant sharma, Apr 25, 2015 at 3:07 AM