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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.

    33.2k
    posts

  2. Relativity

    For discussion of problems relating to special and general relativity.

    38.5k
    posts

  3. Quantum Theory

    Quantum physics and related topics.

    27.8k
    posts

  4. Modern and Theoretical Physics

    Atomic structure, nuclear physics, etc.

    30k
    posts

  5. Astronomy and Cosmology

    Topics related to observation of space and any related phenomena.

    48.8k
    posts

3545 topics in this forum

  1. Dripping Faucet Problem

    By angieelahh,
    • 12 replies
    • 10.9k views

  2. The Physics of Smoke Rings

    By aj47,
    • 2 replies
    • 2.1k views

  3. Using the "Keep Upright" force of gyroscopes

    By alan2here,
    • 9 replies
    • 4.8k views

  4. Time, the fourth dimention?

    By HappyCoder,
    • 2 replies
    • 1.1k views

  5. Top 10 physics developments of the year

    By Martin,
    • 0 replies
    • 890 views

  6. Relativity Question

    By foodchain,
    • 1 reply
    • 957 views

  7. Everything is empty, how do I see it?

    By mudslidexc,
    • 5 replies
    • 1.6k views

  8. Ocean currents

    By h4tt3n,
    • 4 replies
    • 2.1k views

  9. It's a Drag 1 2

    By Gareth56,
    • 31 replies
    • 3.4k views

  10. Hydrogen production 1 2

    By BrianM3265,
    • 25 replies
    • 3.7k views

  11. Nucleations Extent?

    By foodchain,
    • 0 replies
    • 766 views

  12. Occam's Razor VS Randomness 1 2

    By Mr Skeptic,
    • 46 replies
    • 7.2k views

  13. Focusing Light - creating a hot zone

    By P_Rog,
    • 11 replies
    • 2.1k views

  14. The Strength of Wind

    By GrandMasterK,
    • 5 replies
    • 1.5k views

  15. saving the world 1 2

    By superman82,
    • 29 replies
    • 3.3k views

  16. Please Help!

    By the_sunshine,
    • 12 replies
    • 1.7k views

  17. Laser Electricity

    By foodchain,
    • 4 replies
    • 1.2k views

  18. The Float Serve(volleyball) help in explaining the odd trajectory...

    By scalpitch,
    • 9 replies
    • 12.1k views

  19. measuring power usage

    By brianmay27,
    • 3 replies
    • 1.4k views

  20. Unitary Question

    By foodchain,
    • 1 reply
    • 792 views

  21. scale and elevator question

    By grayfalcon89,
    • 11 replies
    • 1.7k views

  22. atom help

    By T man831,
    • 10 replies
    • 1.6k views

  23. Forced Vibration on Non-linear System

    By square173205,
    • 1 reply
    • 809 views

  24. Size and Time

    By foodchain,
    • 6 replies
    • 1.1k views

  25. Tyre tread and ice.

    By Gareth56,
    • 9 replies
    • 1.8k views
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