Physics and Mathematics

2,523 topics in this forum

1. Perpetual Energy

   By johnfp, April 9, 2008
   • 9 replies
   • 1.6k views
   • 
   • UncleAl
   • April 11, 2008

2. Recording space-time

   By johnfp, April 4, 2008
   • 12 replies
   • 1.5k views
   • 
   • HydrogenBond
   • April 11, 2008

3. Frequency modulation

   By sanctus, March 25, 2008
   • 2 replies
   • 856 views
   • 
   • sanctus
   • April 3, 2008

4. Does time stop for photons?

   By johnfp, April 1, 2008
   • 4 replies
   • 1.1k views
   • 
   • InfiniteNow
   • April 2, 2008

5. An Extra Day In 2008

   By Mohit Pandey, February 29, 2008
   • 13 replies
   • 1.5k views
   • 
   • johnfp
   • April 2, 2008

6. Trigonometry 1 2

   By Mohit Pandey, February 20, 2008
   • 17 replies
   • 2.2k views
   • 
   • Mohit Pandey
   • March 29, 2008

7. Mystery

   By Mohit Pandey, March 22, 2008
   • 3 replies
   • 981 views
   • 
   • Qfwfq
   • March 22, 2008

8. Forming diamonds through resonance

   By ascalon, March 18, 2008
   • 4 replies
   • 2.1k views
   • 
   • Qfwfq
   • March 19, 2008

9. Potential Energy

   By HydrogenBond, March 17, 2008
   • 4 replies
   • 1.2k views
   • 
   • Qfwfq
   • March 19, 2008

10. Dirac definitions...

    By sanctus, March 14, 2008
    • 4 replies
    • 994 views
    • 
    • sanctus
    • March 17, 2008

11. General relativity, will we learn otherwise? 1 2 3

    By Smokinjoe9, May 15, 2005
    • 44 replies
    • 10.3k views
    • 
    • modest
    • March 16, 2008

12. Fibonacci bricks

    By Turtle, March 14, 2008
    • 6 replies
    • 2.3k views
    • 
    • Turtle
    • March 15, 2008

13. Calculus: (Anti)derivative

    By ThisIsMyName, February 21, 2008
    • 8 replies
    • 2.3k views
    • 
    • alexander
    • March 4, 2008

14. Keith numbers in base 2

    By CraigD, February 24, 2008
    • 4 replies
    • 1.3k views
    • 
    • Turtle
    • February 28, 2008

15. The context which defines time and inherent vulnerabilities

    By Kriminal99, February 19, 2008
    • 14 replies
    • 1.5k views
    • 
    • Kriminal99
    • February 28, 2008

16. A hypothesis about gravity and magnetism

    By ask, February 23, 2008
    • 4 replies
    • 3.6k views
    • 
    • ask
    • February 27, 2008

17. Missing solutions in differential equations

    By alexander, February 5, 2008
    • 5 replies
    • 5.3k views
    • 
    • alexander
    • February 26, 2008

18. Faster than light...

    By Infinit, February 15, 2008
    • 10 replies
    • 1.5k views
    • 
    • ask
    • February 26, 2008

19. Does this have a name? (recreational math)

    By freeztar, February 22, 2008
    • 7 replies
    • 1.2k views
    • 
    • C1ay
    • February 26, 2008

20. Journey to the Center of the Earth

    By mrtwister, February 19, 2008
    • 7 replies
    • 1.1k views
    • 
    • CraigD
    • February 20, 2008

21. Racing Ahead at the Speed of Light

    By freeztar, February 6, 2008
    • 0 replies
    • 926 views
    • 
    • freeztar
    • February 6, 2008

22. Will General Relativity Fail? 1 2

    By Mac, May 21, 2005
    • 19 replies
    • 3.5k views
    • 
    • bigsam1965
    • February 6, 2008

23. Matter-manifold hypothesis

    By KALSTER, January 19, 2008
    • 5 replies
    • 1.6k views
    • 
    • KALSTER
    • February 6, 2008

24. GR vs QM

    By Dobin, January 31, 2008
    • 1 reply
    • 1k views
    • 
    • Little Bang
    • January 31, 2008

25. Very mean squareroot!

    By sanctus, January 25, 2008
    • 11 replies
    • 1.1k views
    • 
    • Qfwfq
    • January 29, 2008