Login or Sign up!

Physics Forums - The Fusion of Science and Community

  1. Science Education

    1. Homework and Coursework Questions

      Discussions:
      238,920
      Messages:
      1,276,326

      Homework and Coursework Questions

      Sub-Forums

      1. Introductory Physics Homework

      2. Advanced Physics Homework

      3. Precalculus Mathematics Homework

      4. Calculus and Beyond Homework

      5. Biology, Chemistry and Earth Homework

      6. Engineering and Computer Science Homework

      Latest: Equation of plane (or maybe its a line...) Linear Algebra LCKurtz, Mar 2, 2015 at 9:09 PM

    2. Science and Math Textbooks

      Discussions:
      4,139
      Messages:
      23,656
      Latest: Re-learning Calculus 1 mrg, Mar 2, 2015 at 4:34 PM

    3. Academic Guidance

      Discussions:
      21,264
      Messages:
      174,846
      Latest: Programming - where should I start? jedishrfu, Mar 2, 2015 at 9:06 PM

    4. Career Guidance

      Discussions:
      4,999
      Messages:
      39,911
      Latest: Concerned about ability to succeed in job/grad school Choppy, Mar 2, 2015 at 1:23 PM

    5. Educators and Teaching

      Discussions:
      300
      Messages:
      3,736
      Latest: New to AP teaching - AP Physics 1 test help Redbelly98, Mar 1, 2015 at 12:00 PM

    6. STEM Learning Materials

      Discussions:
      618
      Messages:
      3,719
      Latest: Material that'll help improve write-ups for lab experiments? Vagn, Mar 1, 2015 at 3:36 PM

  2. Physics

    1. General Physics

      Discussions:
      36,771
      Messages:
      294,727
      Latest: Ideal gas law combined with vapor pressure zeebuck, Mar 2, 2015 at 9:05 PM

    2. Classical Physics

      Discussions:
      20,736
      Messages:
      148,563
      Latest: Differential Equations in simple mechanics? brainpushups, Mar 2, 2015 at 8:10 PM

    3. Quantum Physics

      Discussions:
      17,770
      Messages:
      176,353
      Latest: E=hf as energy of a particle (other than photon) MathewsMD, Mar 2, 2015 at 9:08 PM

    4. Special and General Relativity

      Discussions:
      14,656
      Messages:
      214,207
      Latest: Valid observer point of view. phinds, Mar 2, 2015 at 9:02 PM

    5. Atomic, Solid State, Comp. Physics

      Discussions:
      4,976
      Messages:
      23,972
      Latest: Differences between Boltzmann and Fermi-Dirac distributions DrClaude, Mar 2, 2015 at 3:00 PM

    6. High Energy, Nuclear, Particle Physics

      Discussions:
      5,813
      Messages:
      41,470
      Latest: Questions on electroweak symmetry breaking karlzr, Mar 2, 2015 at 7:57 PM

    7. Beyond the Standard Model

      Discussions:
      4,659
      Messages:
      57,466
      Latest: Intuitive content of Loop Gravity-Rovelli's program marcus, Mar 2, 2015 at 7:42 PM

  3. Astronomy and Cosmology

    1. Astronomy and Astrophysics

      Discussions:
      9,757
      Messages:
      87,022
      Latest: Ceres at 1 lightsecond, 36% size of full moon OmCheeto, Mar 2, 2015 at 8:52 PM

    2. Cosmology

      Discussions:
      4,873
      Messages:
      62,942
      Latest: Extremely large Black Hole discovered 900M years after BB Garth, Mar 2, 2015 at 5:51 PM

    3. Stargazing and Telescopes

      Discussions:
      423
      Messages:
      4,306
      Latest: Here's some astrophotos I've taken lately davenn, Mar 2, 2015 at 8:56 PM

  4. Mathematics

    1. General Math

      Discussions:
      15,562
      Messages:
      111,914
      Latest: Solve trig multiply equation WarDieS, Mar 2, 2015 at 8:57 PM

    2. Calculus

      Discussions:
      12,894
      Messages:
      74,253
      Latest: How do we define "linear" for single and multivariable? Simon Bridge, Mar 2, 2015 at 6:56 PM

    3. Differential Equations

      Discussions:
      4,655
      Messages:
      20,980
      Latest: system of diff eqs modeling tanks of brine Chestermiller, Mar 2, 2015 at 5:47 PM

    4. Topology and Analysis

      Discussions:
      1,031
      Messages:
      6,503
      Latest: Measurability of a function with finite codomain mathman, Mar 2, 2015 at 4:26 PM

    5. Linear and Abstract Algebra

      Discussions:
      8,594
      Messages:
      53,170
      Latest: P-adic norm, valuation, and expansion Greg Bernhardt, Mar 2, 2015 at 6:00 PM

    6. Differential Geometry

      Discussions:
      3,449
      Messages:
      21,122
      Latest: Attempting to understand diffeomorphisms "Don't panic!", Mar 1, 2015 at 11:31 AM

    7. Set Theory, Logic, Probability, Statistics

      Discussions:
      6,913
      Messages:
      38,799
      Latest: Macro-states and dice DrClaude, Mar 2, 2015 at 3:04 PM

    8. Math Software and LaTeX

      Discussions:
      4,655
      Messages:
      19,476
      Latest: Looking for calculus program to find volume abcdef, Mar 2, 2015 at 1:38 PM

  5. Engineering

    1. General Engineering

      Discussions:
      5,149
      Messages:
      35,550
      Latest: Energy project for Universities implementation berkeman, Mar 2, 2015 at 6:55 PM

    2. Engineering Systems and Design

      Discussions:
      1,885
      Messages:
      11,694
      Latest: Control design for PWM converter Hubert Tchio, Mar 2, 2015 at 2:34 PM

    3. Mechanical Engineering

      Discussions:
      10,397
      Messages:
      65,570

      Mechanical Engineering

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Question regarding the Otto cycle jack action, Mar 2, 2015 at 7:51 PM

    4. Electrical Engineering

      Discussions:
      15,916
      Messages:
      111,043
      Latest: Replacing a capacitor in my DVD player davenn, Mar 2, 2015 at 8:29 PM

    5. Materials and Chemical Engineering

      Discussions:
      2,573
      Messages:
      10,230
      Latest: refractive index change in Piezoelectric material sjumesh, Mar 2, 2015 at 8:25 PM

    6. Nuclear Engineering

      Discussions:
      1,547
      Messages:
      34,427
      Latest: An idea for a Pu-238 replacement for NASA space missions Hologram0110, Mar 2, 2015 at 1:31 PM

  6. Other Sciences

    1. Chemistry

      Discussions:
      7,105
      Messages:
      37,408
      Latest: Conflicting descriptions of Alka-Seltzer reaction? david lewine, Mar 2, 2015 at 7:48 PM

    2. Biology

      Discussions:
      5,746
      Messages:
      46,851
      Latest: What might cell membranes look like on Titan? Ygggdrasil, Mar 2, 2015 at 7:37 PM

    3. Medical Sciences

      Discussions:
      2,172
      Messages:
      22,209
      Latest: Is there a way to measure light frequencies of brainwaves Blackberg, Mar 2, 2015 at 5:47 PM

    4. Programming and Computer Science

      Discussions:
      4,600
      Messages:
      28,513
      Latest: What is the best way to build a physics simulation Fooality, Mar 2, 2015 at 7:43 PM

    5. Earth

      Discussions:
      1,741
      Messages:
      20,351
      Latest: Impact: Earth! A meteor/comet impact simulator OmCheeto, Mar 2, 2015 at 8:11 PM

    6. Computing and Technology

      Discussions:
      5,984
      Messages:
      43,418

      Computing and Technology

      Sub-Forums

      1. Calculators

      Latest: Is 4GB of VRAM overkill for 1080p gaming? Hercuflea, Mar 2, 2015 at 10:56 AM

  7. PF Lounge

    1. General Discussion

      Discussions:
      38,534
      Messages:
      980,537

      General Discussion

      Sub-Forums

      1. Current Events

      2. History and Humanities

      3. Photography

      4. Fun, Photos and Games

      5. Relationships

      6. Social Sciences

      Latest: Random Thoughts part 4 Astronuc, Mar 2, 2015 at 9:00 PM

    2. Science Fiction and Fantasy

      Discussions:
      620
      Messages:
      10,818

      Science Fiction and Fantasy

      Sub-Forums

      1. Science Fiction Writing

      Latest: Consequences of denser atmosphere on Earth-like planet Bystander, Mar 2, 2015 at 5:40 PM

    3. Feedback and Announcements

      Discussions:
      3,726
      Messages:
      42,871

      Feedback and Announcements

      Sub-Forums

      1. PF Member Awards 2014

      Latest: Stickyness of drop down menus Greg Bernhardt, Mar 2, 2015 at 8:53 PM

    4. New Member Introductions

      Discussions:
      1,277
      Messages:
      4,148
      Latest: Hello, PF! Greg Bernhardt, Mar 2, 2015 at 4:55 PM