Physics & Mathematics

168 topics in this forum

1. Stephen Speicher's Library for Sale

   By Betsy Speicher, 3 Sep 2007
   • 9 replies
   • 5,189 views
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   • Betsy Speicher
   • 9 Sep 2010

2. The Logical Leap and criticism

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   By ewv, 9 Sep 2010
   • 528 replies
   • 40,516 views
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   • Betsy Speicher
   • 4 Feb 2011

3. The Theory of Elementary Waves

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   By Betsy Speicher, 27 Jan 2009
   • 233 replies
   • 24,946 views
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   • Dean M. Sandin
   • 28 Jun 2009

4. Mathematics, Logic, Set Theory, and Objectivism

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   By PhilE.Stein, 17 Jul 2005
   • 93 replies
   • 23,961 views
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   • inventor
   • 15 Apr 2010

5. The Nature of Space?

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   By PRN, 12 Jan 2006
   • 82 replies
   • 9,714 views
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   • PhilO
   • 10 Oct 2007

6. Spectacular Hubble image of a spiral galaxy

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   By Stephen Speicher, 2 Mar 2006
   • 82 replies
   • 9,336 views
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   • RayK
   • 18 Apr 2008

7. Teleportation?

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   By Myrhaf, 20 Jun 2005
   • 92 replies
   • 9,278 views
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   • Brian Smith
   • 9 Jul 2005

8. Basic Concepts in Physics

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   By patrik, 20 Apr 2010
   • 57 replies
   • 8,665 views
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   • Carlos
   • 4 Oct 2010

9. Shape of the Universe

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   By MadandGloating, 26 Aug 2005
   • 66 replies
   • 8,084 views
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   • Stephen Speicher
   • 1 Nov 2005

10. PI Day - March 14 (3.14)

    By Stephen Speicher, 13 Mar 2007
    • 17 replies
    • 7,931 views
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    • Stephen Speicher
    • 16 Mar 2007

11. Math and Physics Books

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    By realitycheck44, 11 May 2006
    • 46 replies
    • 7,214 views
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    • Tom Rexton
    • 30 Aug 2007

12. Why does a match go out when you blow on it?

    By kenstauffer, 16 Feb 2005
    • 23 replies
    • 7,203 views
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    • Paul's Here
    • 10 Mar 2005

13. Incommensurability & Irrational Numbers

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    By Nate Smith, 25 Mar 2008
    • 39 replies
    • 7,028 views
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    • ruveyn ben yosef
    • 27 Sep 2008

14. Apophis May Destroy West Coast

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    By Paul's Here, 25 Feb 2007
    • 44 replies
    • 7,020 views
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    • Abaco
    • 19 May 2009

15. Theory of Elementary Waves

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    By piz, 12 Feb 2005
    • 25 replies
    • 6,451 views
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    • ruveyn ben yosef
    • 3 Mar 2012

16. Copenhagen Interpretation

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    By Alex, 16 May 2005
    • 28 replies
    • 5,699 views
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    • Stephen Speicher
    • 25 Nov 2005

17. Limits

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    By Nate Smith, 28 May 2005
    • 25 replies
    • 5,666 views
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    • patrik
    • 13 Oct 2010

18. Pondering special relativity

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    By PhilO, 6 Jul 2005
    • 32 replies
    • 5,646 views
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    • Stephen Speicher
    • 9 Apr 2006

19. Wicking -- how does it work?

    By Burgess Laughlin, 7 Aug 2006
    • 4 replies
    • 5,620 views
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    • AisA
    • 30 Nov 2006

20. Acceptance of fundamentally new scientific ideas

    By Stephen Speicher, 11 Feb 2005
    • 24 replies
    • 5,265 views
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    • Stephen Speicher
    • 2 Dec 2005

21. Einstein and Modern Physics

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    By ewv, 23 Apr 2010
    • 46 replies
    • 5,136 views
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    • ewv
    • 28 Apr 2010

22. The so-called "infinity" in mathematics

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    By martjoh, 16 Mar 2005
    • 33 replies
    • 5,128 views
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    • ADS
    • 22 Apr 2005

23. A really dumb question, I think

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    By Thoyd Loki, 28 Jul 2005
    • 29 replies
    • 5,123 views
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    • Paul's Here
    • 13 Aug 2005

24. Absolute Motion

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    By PRN, 27 Jun 2005
    • 41 replies
    • 5,017 views
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    • Jay P
    • 15 Jul 2005

25. The Farthest Known Object Discovered

    By Paul's Here, 29 Apr 2009
    • 23 replies
    • 4,668 views
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    • bborg
    • 7 May 2009