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Physics

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

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  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.

    38.8k
    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

3562 topics in this forum

  1. Bottle rinsing 1 2

    By Danijel Gorupec,
    • 28 replies
    • 3.7k views

  2. "The Year Of '1'-ders" shows that Phy"SIX" began in year "1-SIX-SIX-SIX" when "New-Ton" created his "New" Law of "Ton"?

    By anton2,
    • 4 replies
    • 1.3k views

  3. How to identify Unknown element?

    By CuriousOnes,
    • 3 replies
    • 1.3k views

  4. Question: How do photons experience time?

    By At_He_Na,
    • 6 replies
    • 1.6k views

  5. Harnessing the power of hurricanes 1 2

    By ScienceNostalgia101,
    • 41 replies
    • 7.2k views

  6. Is Gravity a Force? 1 2 3 4 9

    By Davy_Jones,
    • 206 replies
    • 18.5k views
    • koti
    • koti

  7. The Vagueness of Inertial Reference Frames and the Classical Intuition Towards the EEP?

    By The victorious truther,
    • 2 replies
    • 1.5k views

  8. Can some one explain this physics on how it works?

    By nec209,
    • 8 replies
    • 2.5k views

  9. Why does light exist as different wavelengths?!

    By FrankNBerry,
    • 17 replies
    • 3k views

  10. Violet Lasers Are The Most Powerful

    By Photon Guy,
    • 12 replies
    • 1.8k views

  11. Entropy Question

    By tylers100,
    • 7 replies
    • 2k views

  12. question movement

    By gamer87,
    • 24 replies
    • 2.9k views

  13. Real similitude and Mathematical junction between Coherent States and the Second Quantization

    By Kartazion,
    • 0 replies
    • 985 views

  14. How come mugs/glasses inverted in the cupboard don't become soaked with dew?

    By ScienceNostalgia101,
    • 2 replies
    • 1.1k views

  15. Lens focusing light from two different light sources

    By Purplepenguin,
    • 2 replies
    • 1.2k views

  16. explain this for me.

    By pmull1,
    • 1 reply
    • 993 views

  17. hi i need answer of this question

    By wasizaamm43,
    • 1 reply
    • 1.3k views

  18. Did Albert Einstein come up with his theories all by himself?

    By Alex Mercer,
    • 5 replies
    • 2k views

  19. Could Wimshurst electrostatic generator work in vacuum?

    By SergUpstart,
    • 9 replies
    • 2.2k views

  20. Static Equilibrium/Newton's Third Law

    By Nedcim,
    • 2 replies
    • 1.4k views

  21. Pressure laws - how hydraulic rams work

    By DeepSeaBase,
    • 12 replies
    • 2.7k views

  22. Orbital Mechanics - the FDAI - Can you eyeball space travel?

    By DeepSeaBase,
    • 0 replies
    • 993 views

  23. What is the size and shape of single optical photon? 1 2 3 4

    By Duda Jarek,
    • 78 replies
    • 9.6k views

  24. Landing on a black hole!! 1 2

    By Curious layman,
    • 26 replies
    • 5k views

  25. Physics of deep ocean

    By IDNeon,
    • 16 replies
    • 3.1k views
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