Classical Physics

2829 topics in this forum

1. Why is it so hard to explain time? (What is time?) 1 2 3

   By chron44, January 7
   • 65 replies
   • 2.6k views
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   • Halc
   • April 2

2. Maxwell's demon and the second law of thermodynamics 1 2 3

   By Moreno, December 12, 2015
   • 64 replies
   • 8.2k views
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   • Endy0816
   • March 27, 2018

3. Does matter and/or energy 1 2 3

   By jjjjj, June 20, 2010
   • 63 replies
   • 8.6k views
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   • jjjjj
   • August 17, 2010

4. Do electrons radiate from electostatic acceleration? 1 2 3

   By Lazarus, December 23, 2013
   • 63 replies
   • 7.1k views
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   • imatfaal
   • March 31, 2015

5. how does an object actually achieve motion? 1 2 3

   By paul, December 10, 2008
   • 61 replies
   • 6.9k views
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   • npts2020
   • January 29, 2009

6. Need help generating gravity 1 2 3

   By Aliasalpha, February 26, 2004
   • 60 replies
   • 7.3k views
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   • swansont
   • April 5, 2004

7. Nonspherical earth (split from centrifugal forces) 1 2 3

   By MigL, April 14, 2015
   • 60 replies
   • 5.1k views
   • 
   • Robittybob1
   • April 19, 2015

8. What is the smallest mass proven to have gravity? 1 2 3

   By Robittybob1, March 12, 2016
   • 60 replies
   • 6.7k views
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   • Robittybob1
   • March 25, 2016

9. Newton's gravity equation 1 2 3

   By ivylove, July 20, 2017
   • 59 replies
   • 7.3k views
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   • imatfaal
   • August 2, 2017

10. Photon structure 1 2 3

    By Jacques, September 4, 2007
    • 58 replies
    • 6.4k views
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    • elas
    • December 17, 2007

11. gravity, gravity 1 2 3

    By Baby Astronaut, February 1, 2010
    • 58 replies
    • 6.5k views
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    • pioneer
    • April 9, 2010

12. How many photons/cm3? 1 2 3

    By michel123456, February 14, 2013
    • 58 replies
    • 13.3k views
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    • Przemyslaw.Gruchala
    • February 17, 2013

13. Propellant less space engine 1 2 3

    By John Lowe, March 18, 2019
    • 58 replies
    • 3.2k views
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    • Q-reeus
    • March 22, 2019

14. force = mass x acceleration 1 2 3

    By spunnery, March 8, 2007
    • 57 replies
    • 7.7k views
    • 
    • spunnery
    • March 17, 2007

15. Buoyant force 1 2 3

    By Saber, January 28, 2023
    • 57 replies
    • 2k views
    • 
    • Saber
    • February 1, 2023

16. Question about something i just read 1 2 3

    By Johnny5, March 4, 2005
    • 56 replies
    • 4.4k views
    • 
    • Johnny5
    • March 7, 2005

17. [SPLIT] Thermodynamic entropy and life 1 2 3

    By michel123456, October 8, 2015
    • 56 replies
    • 5.2k views
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    • swansont
    • October 18, 2015

18. Gravitational Potential Energy in a 2 dimensional Universe 1 2 3

    By Vashta Nerada, February 15, 2022
    • 56 replies
    • 4.7k views
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    • J.C.MacSwell
    • February 18, 2022

19. calculate light speed method 1 2 3

    By Logicandreason, June 21, 2023
    • 56 replies
    • 2.9k views
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    • swansont
    • June 22, 2023

20. A basic light circuit. 1 2 3

    By Gweedz, June 5, 2015
    • 55 replies
    • 6.6k views
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    • Spyman
    • June 29, 2015

21. Photographs and bats (yes, bats)... 1 2 3

    By tmx3, March 30, 2018
    • 55 replies
    • 3.8k views
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    • Bender
    • April 2, 2018

22. Magnetic Field "Blocker" 1 2 3

    By d22k, July 4, 2005
    • 54 replies
    • 15.9k views
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    • labview1958
    • September 26, 2005

23. Speed of gravity vs speed of light? 1 2 3

    By Daecon, November 18, 2005
    • 54 replies
    • 6.7k views
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    • swansont
    • December 6, 2005

24. question re f=ma/weight 1 2 3

    By chrismohr, April 30, 2010
    • 54 replies
    • 6.9k views
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    • AlphaSheeppig
    • June 29, 2010

25. EULER's disc and persistent ROCKING PLATES. How does GRAVITY make them work ? 1 2 3

    By Mike Smith Cosmos, April 8, 2015
    • 54 replies
    • 7.5k views
    • 
    • Mike Smith Cosmos
    • June 1, 2017