Modern and Theoretical Physics

2455 topics in this forum

1. How large would a black hole need to be to overcome inflation and pull all matter one day into a big crunch? 1 2

   By MSC, October 11, 2020
   • 31 replies
   • 4.5k views
   • 
   • beecee
   • April 8, 2021

2. How many quarks in a proton?

   By Curious layman, December 11, 2020
   • 9 replies
   • 3.4k views
   • 
   • studiot
   • March 24, 2021

3. How to apply equations to brain functions.

   By JohnSSM, March 22, 2021
   • 0 replies
   • 825 views
   • 
   • JohnSSM
   • March 22, 2021

4. Lorentz factor on the surface of the sun (approximately)

   By Neptune, March 13, 2021
   • 0 replies
   • 1.2k views
   • 
   • Neptune
   • March 13, 2021

5. Proton mass ( split from How many quarks in a proton?)

   By SergUpstart, March 9, 2021
   • 6 replies
   • 1.3k views
   • 
   • swansont
   • March 9, 2021

6. Electric field energy of the electron (split from Can infinities exist in nature?)

   By Duda Jarek, February 20, 2021
   • 19 replies
   • 2.5k views
   • 
   • studiot
   • February 21, 2021

7. paradoxes in nature (split from Can infinities exist in nature?)

   By Prof Reza Sanaye, February 12, 2021
   • 16 replies
   • 2k views
   • 
   • joigus
   • February 14, 2021

8. Can infinities exist in nature?

   By Orange6, December 8, 2020
   • 12 replies
   • 2.8k views
   • 
   • Markus Hanke
   • February 13, 2021

9. The possibility of generating Electricity from the thermal vibration of Electrons

   By Michael507, December 26, 2020
   • 10 replies
   • 2k views
   • 
   • studiot
   • December 29, 2020

10. Measuring radiation help

    By Scott Richards, August 29, 2020
    • 2 replies
    • 1.5k views
    • 
    • swansont
    • December 11, 2020

11. What do we mean when we say something is "Non-Linear"?

    By MSC, October 11, 2020
    • 4 replies
    • 1.7k views
    • 
    • HallsofIvy
    • December 11, 2020

12. Hypothetical "Spaceless" Universe 1 2

    By Anchovyforestbane, November 17, 2020
    • 27 replies
    • 129.2k views
    • 
    • Anchovyforestbane
    • November 20, 2020

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

    By sr.vinay, April 19, 2010
    • 50 replies
    • 18k views
    • 
    • J.C.MacSwell
    • October 30, 2020

14. Wind

    By Dreamhax, September 23, 2020
    • 3 replies
    • 1.5k views
    • 
    • Alex Amir
    • October 23, 2020

15. How many morphologically identical people can there be?

    By Daniel Waxman, October 14, 2020
    • 8 replies
    • 1.6k views
    • 
    • zapatos
    • October 19, 2020

16. CO2 molecules - relative direction of radiation emission?

    By Daniel Waxman, October 14, 2020
    • 6 replies
    • 1.3k views
    • 
    • mathematic
    • October 15, 2020

17. Is gravitation exists?

    By Azerbaijan land of fire, September 24, 2020
    • 5 replies
    • 1.7k views
    • 
    • joigus
    • September 25, 2020

18. Dark matter does not exist ?! What do you think ?

    By senzakan, September 15, 2020
    • 6 replies
    • 1.7k views
    • 
    • swansont
    • September 16, 2020

19. Will Combining Multiple 4G Antennas Improve Signal etc.

    By DARK0717, September 13, 2020
    • 3 replies
    • 1.4k views
    • 
    • StringJunky
    • September 13, 2020

20. Fusion pollution (split from Where is deuterium and tritium found?)

    By Enthalpy, August 21, 2020
    • 17 replies
    • 2.7k views
    • 
    • MigL
    • September 7, 2020

21. Geometric Interpretation of Bargmann-Wigner Equation

    By Markus Hanke, September 5, 2020
    • 3 replies
    • 1.1k views
    • 
    • joigus
    • September 6, 2020

22. trouble in x ray lead shielding

    By robson, August 29, 2020
    • 2 replies
    • 1.2k views
    • 
    • swansont
    • August 29, 2020

23. Where is deuterium and tritium found?

    By Xian, November 29, 2014
    • 10 replies
    • 5.3k views
    • 
    • Duda Jarek
    • August 21, 2020

24. A unifying theory of the 3dimensional universe

    By Scott alan miles, July 31, 2020
    • 6 replies
    • 1.6k views
    • 
    • Phi for All
    • July 31, 2020

25. QCD axion Dark Matter

    By Kartazion, July 11, 2020
    • 12 replies
    • 1.7k views
    • 
    • Kartazion
    • July 24, 2020