Physics and Mathematics

2,509 topics in this forum

1. Efficacity of detectors

   By sanctus, April 11, 2005
   • 1 reply
   • 890 views
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   • C1ay
   • April 11, 2005

2. The arrow of time

   By Aki, April 8, 2005
   • 9 replies
   • 1.3k views
   • 
   • Qfwfq
   • April 11, 2005

3. Mathematica and comps

   By FREYA021, April 7, 2005
   • 1 reply
   • 1.1k views
   • 
   • Qfwfq
   • April 7, 2005

4. Prime Density

   By Thelonious, April 4, 2005
   • 3 replies
   • 5.7k views
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   • Qfwfq
   • April 5, 2005

5. 1 = 2 ...? 1 2

   By Jay-qu, March 18, 2005
   • 21 replies
   • 2.9k views
   • 
   • MortenS
   • April 2, 2005

6. Can someone please explain the Neyman pearson lemma test for me??

   By mang73, March 31, 2005
   • 2 replies
   • 3.4k views
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   • mang73
   • April 2, 2005

7. White Holes

   By Jay-qu, April 1, 2005
   • 2 replies
   • 1.7k views
   • 
   • jizum3434
   • April 1, 2005

8. Does time expand?

   By Aki, March 24, 2005
   • 8 replies
   • 1.5k views
   • 
   • Bo
   • March 29, 2005

9. Energy of a photon?

   By Aki, March 19, 2005
   • 13 replies
   • 9.8k views
   • 
   • Qfwfq
   • March 29, 2005

10. Electron-proton scattering

    By Aki, March 23, 2005
    • 10 replies
    • 3.9k views
    • 
    • Qfwfq
    • March 29, 2005

11. Calculus Help Needed-Vesica Piscis Thread-Post#11

    By Turtle, March 18, 2005
    • 7 replies
    • 1.9k views
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    • C1ay
    • March 23, 2005

12. Mathematician untangles legendary problem

    By C1ay, March 18, 2005
    • 3 replies
    • 1.1k views
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    • Turtle
    • March 18, 2005

13. I can't spell Fibinacci

    By bumab, March 17, 2005
    • 11 replies
    • 1.9k views
    • 
    • Qfwfq
    • March 18, 2005

14. Perpetual Motion: Super Conductive Magnets. 1 2

    By Dark Mind, February 15, 2005
    • 32 replies
    • 7.7k views
    • 
    • Qfwfq
    • March 18, 2005

15. Electricity effect

    By tarak, March 11, 2005
    • 4 replies
    • 2.1k views
    • 
    • Qfwfq
    • March 17, 2005

16. Period of nonlinear and nondamped pendulum?

    By Tim_Lou, March 14, 2005
    • 3 replies
    • 1.5k views
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    • C1ay
    • March 16, 2005

17. Trigonometry identity

    By User2983, March 13, 2005
    • 5 replies
    • 2.1k views
    • 
    • Qfwfq
    • March 15, 2005

18. Magnetic Levitation and Gyroscopes

    By rectangleboy, March 13, 2005
    • 3 replies
    • 7.3k views
    • 
    • Qfwfq
    • March 15, 2005

19. A different kind of string theory question...

    By mmotion, March 12, 2005
    • 4 replies
    • 1.4k views
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    • OpenMind5
    • March 14, 2005

20. Mass of a Tachyon

    By Aki, March 13, 2005
    • 6 replies
    • 1.8k views
    • 
    • sanctus
    • March 14, 2005

21. Representation

    By sanctus, March 11, 2005
    • 2 replies
    • 1.1k views
    • 
    • sanctus
    • March 14, 2005

22. String Theory question...

    By maddog, March 11, 2005
    • 6 replies
    • 1.6k views
    • 
    • Bo
    • March 14, 2005

23. Lim x--> + or - infinity f(x)

    By Tim_Lou, September 10, 2004
    • 11 replies
    • 8k views
    • 
    • maddog
    • March 12, 2005

24. How does one prove Goodstein's Theorem ?

    By maddog, March 11, 2005
    • 2 replies
    • 4.1k views
    • 
    • Qfwfq
    • March 11, 2005

25. Perpetual motion 1 2 3

    By scorpio_fl, February 3, 2005
    • 37 replies
    • 9.2k views
    • 
    • Qfwfq
    • March 11, 2005