Modern and Theoretical Physics

2433 topics in this forum

1. What gives electricity its heat?

   By Colic, December 26, 2013
   • 15 replies
   • 1.9k views
   • 
   • Sensei
   • January 18, 2014

2. What good is string theory?

   By rrw4rusty, November 13, 2009
   • 6 replies
   • 1.6k views
   • 
   • ajb
   • November 13, 2009

3. what happens after death??

   By Guest, January 1, 1970
   • 0 replies
   • 893 views
   • 
   • Guest
   • January 1, 1970

4. What happens in Stern-Gerlach if...

   By Butch, March 9, 2018
   • 2 replies
   • 696 views
   • 
   • Butch
   • March 10, 2018

5. What if Protons were heavier than Neutrons ?

   By Widdekind, June 4, 2010
   • 0 replies
   • 762 views
   • 
   • Widdekind
   • June 4, 2010

6. What if the "Big Bang" was just the supernova of a star?

   By IsiacTorres, May 18, 2014
   • 13 replies
   • 10.8k views
   • 
   • Mordred
   • June 8, 2014

7. What if the universe exists around a black hole?

   By notme1lt, March 1, 2016
   • 9 replies
   • 1.4k views
   • 
   • notme1lt
   • March 1, 2016

8. What infinity is realized in universe? 1 2

   By Michael F. D., May 22, 2003
   • 35 replies
   • 4.5k views
   • 
   • bigjnorman
   • October 28, 2003

9. What is a beggining and ending velocity for an electron?

   By vitality00, November 7, 2014
   • 3 replies
   • 1k views
   • 
   • swansont
   • November 7, 2014

10. What is a good pictorial representation of an atom? 1 2

    By Mag, January 30, 2008
    • 27 replies
    • 7k views
    • 
    • Vexer
    • May 17, 2008

11. What is a magnetic field exactly? 1 2 3

    By sr.vinay, April 19, 2010
    • 50 replies
    • 16.5k views
    • 
    • J.C.MacSwell
    • October 30, 2020

12. What is a non-relativistic equation?

    By vitality00, November 4, 2014
    • 1 reply
    • 776 views
    • 
    • elfmotat
    • November 4, 2014

13. what is a quark & lepton?

    By swaha, July 21, 2009
    • 2 replies
    • 1.1k views
    • 
    • swansont
    • July 21, 2009

14. What is energy: subatomic particle or abstract concept?

    By gib65, October 23, 2004
    • 14 replies
    • 4.9k views
    • 
    • gib65
    • October 25, 2004

15. what is energy? 1 2

    By 36grit, May 5, 2017
    • 49 replies
    • 5.2k views
    • 
    • imatfaal
    • May 28, 2017

16. What is entanglement, both classical and quantum and what is the difference between these ? 1 2 3

    By studiot, October 13, 2021
    • 53 replies
    • 3.7k views
    • 
    • swansont
    • November 1, 2021

17. What is exactly the same in nature ?

    By Andrew William Henderson, June 30, 2021
    • 4 replies
    • 848 views
    • 
    • swansont
    • June 30, 2021

18. What is gravity? 1 2 3 4 5

    By Muhammad Owais Isaac, February 26
    • 120 replies
    • 3.6k views
    • 
    • Markus Hanke
    • March 18

19. What is harmonics in electronics and in sound?

    By vitality00, November 1, 2014
    • 1 reply
    • 784 views
    • 
    • swansont
    • November 1, 2014

20. What is it about The Lightness of Being?

    By Martin, October 23, 2008
    • 10 replies
    • 2.4k views
    • 
    • npts2020
    • November 7, 2008

21. What is light exactly?

    By A learner, November 12, 2018
    • 10 replies
    • 1.4k views
    • 
    • Rajiv Naik
    • November 22, 2018

22. What Is Light/Photons?

    By iPeppers, September 23, 2009
    • 3 replies
    • 1.3k views
    • 
    • Mr Skeptic
    • September 24, 2009

23. What is LQG?

    By Martin, July 27, 2007
    • 8 replies
    • 2.2k views
    • 
    • Martin
    • July 29, 2007

24. What is meant by the term dipole?

    By Xian, November 23, 2014
    • 3 replies
    • 1.2k views
    • 
    • Mike Smith Cosmos
    • November 23, 2014

25. What is meant by this example?

    By Speldosa, November 3, 2009
    • 5 replies
    • 1.3k views
    • 
    • Speldosa
    • November 14, 2009