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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. Lasers.... A must have for the physics minded 1 2

    By ScienceFreak,
    • 31 replies
    • 4.3k views

  2. uncontained vacuum

    By lutindiable,
    • 5 replies
    • 1.6k views

  3. Stationary Waves!

    By Khan,
    • 1 reply
    • 957 views

  4. average force of friction

    By hockey45,
    • 2 replies
    • 4.8k views

  5. Not needed at the orbiting space station?

    By Externet,
    • 3 replies
    • 968 views

  6. Rechargeable nuclear batteries

    By Genecks,
    • 10 replies
    • 5.1k views

  7. Paradox in Magnatism?

    By alan2here,
    • 8 replies
    • 2.3k views

  8. A few questions

    By Steven Craig,
    • 4 replies
    • 1.1k views

  9. Hollow Earth / no gravity

    By richard quest,
    • 4 replies
    • 1.6k views

  10. Acceleration

    By Tourist,
    • 1 reply
    • 891 views

  11. warm air rises right?

    By fattyjwoods,
    • 8 replies
    • 1.4k views

  12. How does the hydrothopter work ?

    By Externet,
    • 12 replies
    • 3.9k views

  13. Resistent Material.

    By foodchain,
    • 5 replies
    • 1.3k views

  14. NASA Virtual Lab

    By alan2here,
    • 2 replies
    • 1k views

  15. Entropy and Evolution

    By foodchain,
    • 3 replies
    • 1.1k views

  16. Energy Bands.

    By foodchain,
    • 6 replies
    • 1.3k views

  17. Why can you blow a small flame out? 1 2

    By chunhon,
    • 25 replies
    • 3.4k views

  18. Need help identifying a device

    By alan2here,
    • 8 replies
    • 1.8k views

  19. tesla's inventions

    By tomgwyther,
    • 10 replies
    • 1.8k views

  20. Stars

    By Lawle$$,
    • 3 replies
    • 1.1k views

  21. Secondary Emission Radiation

    By imp,
    • 6 replies
    • 1.3k views

  22. Pendulum and coupling to Earth's spin

    By abskebabs,
    • 10 replies
    • 1.4k views

  23. cool x-ray tech (AS&E backscatter)

    By Dak,
    • 1 reply
    • 1.2k views

  24. Photon Stats

    By YT2095,
    • 6 replies
    • 2.6k views

  25. Slow-moving immiscible liquid

    By darXide,
    • 1 reply
    • 1.1k views
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