Physics and Mathematics

2,386 topics in this forum

1. LaTeX Fomulas: Math v2.0 1 2 3

   By alexander, May 12, 2006
   • 43 replies
   • 112.3k views
   • 
   • Dubbelosix
   • July 30

2. LaTeX update: Read this before posting! 1 2 3 4 7

   By alexander, July 5, 2007
   • 105 replies
   • 66.6k views
   • 
   • Tormod
   • September 11, 2010

3. Smooth Earth

   By Anchovyforestbane, Friday at 11:39 PM   

   • conceptual physics
   • 3d geometry
   • (and 1 more)

     Tagged with:

     • conceptual physics
     • 3d geometry
     • geodesic mathematics
   • 1 reply
   • 34 views
   • 
   • montgomery
   • Saturday at 12:37 AM

4. (微信/QQ; 362595196)专业办理海外假毕业证/成绩单/证书fake degree/diploma/certificate

   By Andy2009, Friday at 01:52 AM
   • 0 replies
   • 42 views
   • 
   • Andy2009
   • Friday at 01:52 AM

5. Experimental research of flapping flight, unexplored aerodynamics phenomenon and the question of the effectiveness of a flying saucer

   By MasterOgon, October 18
   • 4 replies
   • 151 views
   • 
   • montgomery
   • Tuesday at 04:29 PM

6. Christoffel Notation

   By Anchovyforestbane, October 14
   • 3 replies
   • 106 views
   • 
   • VictorMedvil
   • October 17

7. Stability of the Hydrogen Atom 1 2

   By Mike C, November 2, 2007
   • 31 replies
   • 3.4k views
   • 
   • OceanBreeze
   • October 9

8. Congratulations Roger Penrose, Reinhard Genzel and Andrea Ghez for the Nobel Prize in Physics 2020

   By Mutex, October 7   

   • https://www.reuters.com/article/nobel-prize-physics-int-iduskbn26r1ng
   • 0 replies
   • 74 views
   • 
   • Mutex
   • October 7

9. Heat Transfer in Tyres

   By Raamesh, October 2
   • 1 reply
   • 65 views
   • 
   • OceanBreeze
   • October 5

10. Fun math thing: how big will the rolled madrass be?

    By sanctus, September 25
    • 8 replies
    • 170 views
    • 
    • sanctus
    • October 1

11. electricity Electricity flows in an open circuit, too 1 2

    By MitkoGorgiev, September 27   

    • electromagnetism
    • electric current
    • 17 replies
    • 197 views
    • 
    • MitkoGorgiev
    • September 30

12. Does Quantum Mechanics Mean There Is A Finite Number Of Colours?

    By Omnifarious, September 10   

    • photons
    • atoms
    • (and 5 more)

      Tagged with:

      • photons
      • atoms
      • light
      • wavelengths
      • colours
      • photoelectric
      • photoelectrons
    • 13 replies
    • 281 views
    • 
    • Mutex
    • September 16

13. Seemingly Unnamed Toroid(?) Structure

    By Anchovyforestbane, September 11   

    • 3D geometry
    • 9 replies
    • 206 views
    • 
    • Dubbelosix
    • September 15

14. Seemingly Unnamed Apeirohedron

    By Anchovyforestbane, September 11   

    • 3D geometry
    • 10 replies
    • 205 views
    • 
    • Turtle
    • September 13

15. Multiple Timelines And The Strong Nuclear Force

    By VictorMedvil, September 10
    • 0 replies
    • 97 views
    • 
    • VictorMedvil
    • September 10

16. Nonchalance Force Vs Kinetic Momentum

    By Dubbelosix, September 9
    • 1 reply
    • 107 views
    • 
    • Dubbelosix
    • September 9

17. Maths And Self-Defence: Does My Formula Make Mathematical Sense?

    By Wannabelifeguard, August 30
    • 6 replies
    • 226 views
    • 
    • ScienceAndUniverse
    • September 9

18. Photons Repulsions

    By Simon4159870717, September 7   

    • diffraction
    • 0 replies
    • 141 views
    • 
    • Simon4159870717
    • September 7

19. Nikola Tesla Vs. The Second Law Of Thermodynamics 1 2 3 4 6

    By TomBooth, August 9
    • 91 replies
    • 1.5k views
    • 
    • Dubbelosix
    • August 31

20. An Unexpected Discovery

    By Dubbelosix, August 24
    • 7 replies
    • 285 views
    • 
    • Dubbelosix
    • August 28

21. The Einstain-Energy Drop

    By Dubbelosix, August 20
    • 4 replies
    • 180 views
    • 
    • Dubbelosix
    • August 21

22. Michelson Morley And Gravitational Lensing Question 1 2 3

    By engcat, July 2
    • 50 replies
    • 1.1k views
    • 
    • marcospolo
    • August 21

23. I(1 To 24)?

    By Frogger, August 21
    • 0 replies
    • 970 views
    • 
    • Frogger
    • August 21

24. Three Air Tight Reasons Why No Object Can Ever Reach An Event Horizon 1 2 3 4 12

    By A-wal, March 26, 2019   

    • General Relativity
    • Black Holes
    • 192 replies
    • 5.8k views
    • 
    • Dubbelosix
    • August 18

25. Essay: Explaining Cosmology

    By arkain101, December 22, 2008
    • 8 replies
    • 5.2k views
    • 
    • arkain101
    • August 14