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Physics Forums | Science Articles, Homework Help, Discussion

  1. Homework Help

    1. Introductory Physics Homework

      Find the Y component of Electric field at a point

    2. Advanced Physics Homework

      Calculating the total weight of a system of 10 oscillators and eight quanta of energy

    3. Precalculus Mathematics Homework

      Probablity of Opening a Pushbutton Lock

    4. Calculus and Beyond Homework

      Converting a Piecewise function to a Heaviside function

    5. Biology, Chemistry and Earth Homework

      Precision and Accuracy

    6. Engineering and Computer Science Homework

      Coulombic force of repulsion/attraction between ions

  2. Science Education and Careers

    1. Science and Math Textbooks

      What are you reading now? (STEM only)

    2. Academic Guidance

      Canadian universities?

    3. Educators and Teaching

      Questions Regarding a Semester Project

    4. Career Guidance

      Searching for jobs in the USA, should I quit?

  3. Physics

    1. General Physics

      Water drag lines - what's it called?

    2. Classical Physics

      Resonance between spring and pendulum: Different frequencies

    3. Quantum Physics

      On Heisenberg's uncertainty principle

    4. Special and General Relativity

      Does invariance of proper time lead to the Lorentz transformation, or vice versa?

    5. Atomic and Condensed Matter

      How to evaluate path integrals numerically?

    6. High Energy, Nuclear, Particle Physics

      What is the "real" Feynman propagator?

    7. Beyond the Standard Model

      Theories without Fundamental Space and Time

  4. Astronomy and Cosmology

    1. Astronomy and Astrophysics

      Why does Mars have so much iron on it's surface.

    2. Cosmology

      Current Status of Eternal Inflation

  5. Mathematics

    1. General Math

      Has the Riemann hypothesis been proven?

    2. Calculus

      Find v(t) from Newton's Second Law and Differential Equation

    3. Differential Equations

      Mathematical Biology- Neumann BCs, Turing Analysis

    4. Topology and Analysis

      How to prove that cuboids are Lebesgue measurable?

    5. Linear and Abstract Algebra

      Lagrange multipliers on Banach spaces (in Dirac notation)

    6. Differential Geometry

      Defining a Contact Structure Globally -- Obstructions?

    7. Set Theory, Logic, Probability, Statistics

      Proof of the identity A\(A\B)=B

    8. MATLAB, Maple, Mathematica, LaTeX, Etc

      Matlab toolboxes essential for every physicist

  6. Engineering

    1. General Engineering

      Modern Manufacturing Engineering

    2. Mechanical Engineering

      Help with Geometric Dimensioning and Tolerancing...

    3. Electrical Engineering

      performance of a complimentary antenna?

    4. Materials and Chemical Engineering

      Industrial production of a drug host

    5. Nuclear Engineering

      Granular load factor statistics for the Palo Verde plant

    6. DIY Projects

      Device for Electric Scooter, to get the speed?

  7. Other Sciences

    1. Chemistry

      Problems with Raman Spectroscopy

    2. Programming and Computer Science

      Comparison of high-level computer programming languages

    3. Biology and Medical

      On natural selection...

    4. Computing and Technology

      Surge Protector

    5. Earth

      A busy 24 Hours in seismology

  8. PF Lounge

    1. General Discussion

      engineer charged with money laundering germany

    2. Science Fiction and Fantasy Media

      Upgrade and new good original Sci-Fi

    3. Feedback and Announcements

      How to make a poll?

    4. New Member Introductions

      Ph.D. in Electrical Engineering