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Physics

The world of forces, particles and high-powered experiments.

Subforums

  1. Classical Physics

    Vector forces, gravity, acceleration, and other facets of mechanics.

    33.6k
    posts

  2. Relativity

    For discussion of problems relating to special and general relativity.

    38.9k
    posts

  3. Quantum Theory

    Quantum physics and related topics.

    27.9k
    posts

  4. Modern and Theoretical Physics

    Atomic structure, nuclear physics, etc.

    30.2k
    posts

  5. Astronomy and Cosmology

    Topics related to observation of space and any related phenomena.

    49.6k
    posts

3563 topics in this forum

  1. Fluctuating magnetic fields cause heart attacks and strokes to double! 1 2

    By LaraKnowles,
    • 46 replies
    • 5.7k views

  2. Recycling Heat 1 2

    By Photon Guy,
    • 30 replies
    • 3.9k views

  3. Find the electric current required.

    By Kakos87,
    • 0 replies
    • 943 views

  4. Group Fluid Framework for accurately measuring fluid dynamics.

    By grayson,
    • 2 replies
    • 1k views

  5. the definition of energy

    By mar_mar,
    • 19 replies
    • 2.3k views

  6. "footage" of current passing through wire

    By robert1978bp,
    • 0 replies
    • 780 views

  7. Is entropy always low in a way?

    By Tristan L,
    • 1 reply
    • 809 views

  8. Will entropy be low much of the time? 1 2

    By Tristan L,
    • 42 replies
    • 35k views

  9. Radiation and Lambert's Cosine Law

    By Dewsquad,
    • 1 reply
    • 905 views

  10. Looking for pdfs

    By grayson,
    • 1 reply
    • 805 views

  11. Photon is massless why? 1 2

    By Muhammad Owais Isaac,
    • 47 replies
    • 6.3k views

  12. What is 210J

    By johnsri,
    • 2 replies
    • 787 views

  13. Matter waves (split from Photon is massless why?) 1 2 3 4 5

    By martillo,
    • 119 replies
    • 10.8k views

  14. Forgotten energy in interactions of particles with opposite charge. 1 2

    By martillo,
    • 31 replies
    • 3.1k views

  15. Mass of a photon particle...

    By Externet,
    • 12 replies
    • 2k views
    • KJW
    • KJW

  16. Mushy questions about gravitational waves

    By Danijel Gorupec,
    • 12 replies
    • 2.2k views

  17. Is this possible? Any thermodynamics dynamos out there want to weigh in?

    By K8H,
    • 6 replies
    • 944 views

  18. JOBS

    By Gian,
    • 8 replies
    • 1.2k views
    • Gian
    • Gian

  19. Any beneficial uses for tritium ?

    By Externet,
    • 16 replies
    • 1.4k views

  20. what are we made of?

    By derek w,
    • 6 replies
    • 2.3k views

  21. The change between kinetic and potential energy

    By grayson,
    • 13 replies
    • 2.9k views

  22. Locality in MTW

    By Genady,
    • 0 replies
    • 442 views

  23. Masers instead lasers for nuclear fusion (I asked Bard)

    By Psycho666,
    • 9 replies
    • 1.3k views

  24. Technology based on extending the range of the Strong Force?

    By Fanghur,
    • 4 replies
    • 908 views

  25. Is CPT symmetry still valid for macroscopic physics? 1 2 3

    By Duda Jarek,
    • 60 replies
    • 5.9k views
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