Login or Sign up!

Physics Forums - The Fusion of Science and Community

  1. Science Education

    1. Homework and Coursework Questions

      Discussions:
      238,930
      Messages:
      1,276,397

      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: Torque: stick resting on a bowling ball henry3369, Mar 3, 2015 at 2:38 AM

    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:
      21,265
      Messages:
      174,850
      Latest: Programming - where should I start? x86, Mar 3, 2015 at 1:18 AM

    4. Career Guidance

      Discussions:
      5,000
      Messages:
      39,914
      Latest: As a High school senior, my knowledge of physics is limited PsychonautQQ, Mar 3, 2015 at 3:05 AM

    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:
      36,772
      Messages:
      294,736
      Latest: What are the forces acting while squeezing a ball? A.T., Mar 3, 2015 at 2:47 AM

    2. Classical Physics

      Discussions:
      20,737
      Messages:
      148,568
      Latest: Differential Equations in simple mechanics? PeroK, Mar 3, 2015 at 2:01 AM

    3. Quantum Physics

      Discussions:
      17,770
      Messages:
      176,361
      Latest: Hilbert space transformation under Poincaré translation strangerep, Mar 3, 2015 at 12:33 AM

    4. Special and General Relativity

      Discussions:
      14,657
      Messages:
      214,214
      Latest: Combining special relativity with newtonian gravity TimeRip496, Mar 3, 2015 at 3:01 AM

    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:
      4,660
      Messages:
      57,473
      Latest: Ali and Das, "Cosmology from quantum potential" Demystifier, Mar 3, 2015 at 2:15 AM

  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:
      62,944
      Latest: Acceleration a Function of Density, yet Density is Constant? PeterDonis, Mar 2, 2015 at 11:47 PM

    3. Stargazing and Telescopes

      Discussions:
      423
      Messages:
      4,307
      Latest: Here's some astrophotos I've taken lately scott mcleod jr, Mar 2, 2015 at 9:48 PM

  4. Mathematics

    1. General Math

      Discussions:
      15,565
      Messages:
      111,927
      Latest: Evaluation of an integral matteo137, Mar 3, 2015 at 3:01 AM

    2. Calculus

      Discussions:
      12,895
      Messages:
      74,254
      Latest: Newton Leibnitz Formula for Evaluating Definite Integrals andyrk, Mar 3, 2015 at 1:50 AM

    3. Differential Equations

      Discussions:
      4,655
      Messages:
      20,983
      Latest: system of diff eqs modeling tanks of brine Chestermiller, Mar 2, 2015 at 9:49 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:
      53,172
      Latest: 4th order tensor double product Bteranto, Mar 3, 2015 at 1:44 AM

    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:
      4,656
      Messages:
      19,478
      Latest: How to get specific frequency and time values for .wav file matteo137, Mar 3, 2015 at 2:20 AM

  5. Engineering

    1. General Engineering

      Discussions:
      5,150
      Messages:
      35,556
      Latest: how can I remove water from steam? physior, Mar 3, 2015 at 2:38 AM

    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:
      65,576

      Mechanical Engineering

      Sub-Forums

      1. Aerospace Engineering

      2. Automotive Engineering

      Latest: Jet engine position yrjosmiel73, Mar 3, 2015 at 2:44 AM

    4. Electrical Engineering

      Discussions:
      15,916
      Messages:
      111,045
      Latest: Heat generated in an enclosure? damightytom, Mar 3, 2015 at 1:22 AM

    5. Materials and Chemical Engineering

      Discussions:
      2,574
      Messages:
      10,232
      Latest: Making a Nylon - Fibre Composite raniero, Mar 3, 2015 at 12:30 AM

    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:
      37,409
      Latest: Conflicting descriptions of Alka-Seltzer reaction? Borek, Mar 3, 2015 at 2:20 AM

    2. Biology

      Discussions:
      5,746
      Messages:
      46,852
      Latest: What might cell membranes look like on Titan? Andy Resnick, Mar 2, 2015 at 9:22 PM

    3. Medical Sciences

      Discussions:
      2,172
      Messages:
      22,212
      Latest: Is there a way to measure light frequencies of brainwaves Drakkith, Mar 3, 2015 at 12:29 AM

    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:
      980,540

      General Discussion

      Sub-Forums

      1. Current Events

      2. History and Humanities

      3. Photography

      4. Fun, Photos and Games

      5. Relationships

      6. Social Sciences

      Latest: Russian opposition leader ,a putin critic shot dead Czcibor, Mar 3, 2015 at 1:31 AM

    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:
      42,874

      Feedback and Announcements

      Sub-Forums

      1. PF Member Awards 2014

      Latest: Download the free PF App for iPhone/Android phones! AGNuke, Mar 3, 2015 at 12:33 AM

    4. New Member Introductions

      Discussions:
      1,279
      Messages:
      4,151
      Latest: Hello, PF! yrjosmiel73, Mar 3, 2015 at 1:54 AM