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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.

    33.5k
    posts

  2. Relativity

    For discussion of problems relating to special and general relativity.

    38.8k
    posts

  3. Quantum Theory

    Quantum physics and related topics.

    27.8k
    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

3561 topics in this forum

  1. Find the electric current required.

    By Kakos87,
    • 0 replies
    • 917 views

  2. Group Fluid Framework for accurately measuring fluid dynamics.

    By grayson,
    • 2 replies
    • 972 views

  3. the definition of energy

    By mar_mar,
    • 19 replies
    • 2.2k views

  4. "footage" of current passing through wire

    By robert1978bp,
    • 0 replies
    • 755 views

  5. Is entropy always low in a way?

    By Tristan L,
    • 1 reply
    • 775 views

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

    By Tristan L,
    • 42 replies
    • 34.5k views

  7. Radiation and Lambert's Cosine Law

    By Dewsquad,
    • 1 reply
    • 866 views

  8. Looking for pdfs

    By grayson,
    • 1 reply
    • 764 views

  9. Photon is massless why? 1 2

    By Muhammad Owais Isaac,
    • 47 replies
    • 6k views

  10. What is 210J

    By johnsri,
    • 2 replies
    • 749 views

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

    By martillo,
    • 119 replies
    • 9.7k views

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

    By martillo,
    • 31 replies
    • 2.5k views

  13. Mass of a photon particle...

    By Externet,
    • 12 replies
    • 1.8k views
    • KJW
    • KJW

  14. Mushy questions about gravitational waves

    By Danijel Gorupec,
    • 12 replies
    • 2.1k views

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

    By K8H,
    • 6 replies
    • 887 views

  16. JOBS

    By Gian,
    • 8 replies
    • 1.1k views
    • Gian
    • Gian

  17. Any beneficial uses for tritium ?

    By Externet,
    • 16 replies
    • 1.3k views

  18. what are we made of?

    By derek w,
    • 6 replies
    • 2.2k views

  19. The change between kinetic and potential energy

    By grayson,
    • 13 replies
    • 1.6k views

  20. Locality in MTW

    By Genady,
    • 0 replies
    • 424 views

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

    By Psycho666,
    • 9 replies
    • 1.1k views

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

    By Fanghur,
    • 4 replies
    • 836 views

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

    By Duda Jarek,
    • 60 replies
    • 5.5k views

  24. Hypothesis on travelling with magnets

    By Goldside543,
    • 7 replies
    • 1k views

  25. What is physics?

    By richards1,
    • 1 reply
    • 568 views
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