Modern and Theoretical Physics

2433 topics in this forum

1. Can optical tweezers move a atom and could a optical tweezers be made as small as a cell or smaller? 1 2 3 4

   By ADVANCE, May 2, 2014
   • 99 replies
   • 7.6k views
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   • ADVANCE
   • May 14, 2014

2. Electromagnetic Wave have momentum 1 2 3

   By Ashish, October 16, 2008
   • 69 replies
   • 7.4k views
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   • swansont
   • January 17, 2009

3. could matter be converted into light?

   By TheThing, March 23, 2015
   • 16 replies
   • 7.4k views
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   • jajrussel
   • January 21, 2019

4. Creating matter 1 2 3

   By FreshMadEagr, January 17, 2005
   • 63 replies
   • 7.4k views
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   • Sayonara
   • February 12, 2005

5. Hawking's Theory of Everything.

   By dstebbins, March 24, 2007
   • 22 replies
   • 7.4k views
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   • tycon69
   • December 19, 2007

6. Faster than the Speed of light! 1 2

   By Encrypted, September 23, 2004
   • 45 replies
   • 7.3k views
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   • dragonstar57
   • August 22, 2011

7. Waveform of an electron 1 2

   By petrushka.googol, January 17, 2016
   • 33 replies
   • 7.3k views
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   • Enthalpy
   • April 26, 2016

8. True Time Travel 1 2 3

   By CHRISCUNNINGHAM, March 23, 2003
   • 58 replies
   • 7.1k views
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   • Sayonara
   • August 24, 2003

9. Photon spin

   By nicobudini, April 6, 2006
   • 22 replies
   • 7.1k views
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   • kleinwolf
   • March 12, 2009

10. Charged leptons don't mix. Why?

    By fermion, September 20, 2007
    • 13 replies
    • 7k views
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    • Severian
    • September 26, 2007

11. What is a good pictorial representation of an atom? 1 2

    By Mag, January 30, 2008
    • 27 replies
    • 7k views
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    • Vexer
    • May 17, 2008

12. Where is Dark Matter? 1 2

    By GrandMasterK, August 7, 2007
    • 48 replies
    • 7k views
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    • Pete
    • July 11, 2008

13. Is the universe a closed or open system?

    By Alan McDougall, August 14, 2012
    • 8 replies
    • 7k views
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    • JohnStu
    • September 18, 2012

14. Photon in a Box 1 2 3

    By Hadron, April 8, 2008
    • 54 replies
    • 6.9k views
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    • Pete
    • July 13, 2008

15. massless particles ?

    By 1123581321, February 10, 2011
    • 18 replies
    • 6.8k views
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    • swansont
    • March 17, 2011

16. How do you get a single electron?

    By gib65, February 2, 2007
    • 6 replies
    • 6.8k views
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    • swansont
    • February 2, 2007

17. Rail Guns 1 2

    By [Tycho?], May 17, 2004
    • 46 replies
    • 6.8k views
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    • Megatron
    • May 24, 2005

18. Thoughts On Dark Matter 1 2

    By TheoreticalCheckmate, June 24, 2015
    • 44 replies
    • 6.6k views
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    • Strange
    • December 27, 2016

19. Can mass be called mass without the “object” 1 2 3

    By Short timer, November 26, 2019
    • 67 replies
    • 6.6k views
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    • Sensei
    • December 11, 2019

20. Time Travel is Impossible and if not Impractical 1 2

    By HPositive, June 27, 2015
    • 41 replies
    • 6.6k views
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    • jev1969
    • May 12, 2016

21. Does entropy really explain time vector? 1 2

    By Jeremy Mallin, December 27, 2012
    • 45 replies
    • 6.6k views
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    • Mike Smith Cosmos
    • January 23, 2013

22. order and entropy.... 1 2 3

    By petrushka.googol, January 23, 2014
    • 51 replies
    • 6.5k views
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    • Strange
    • November 23, 2014

23. Mass Effect Technology - would it really work?

    By Hypercube, November 21, 2010
    • 2 replies
    • 6.5k views
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    • Mr Skeptic
    • November 22, 2010

24. Can someone explain to me the 11 dimensions of string theory 1 2 3

    By Lightmeow, January 2, 2014
    • 59 replies
    • 6.5k views
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    • MigL
    • February 23, 2014

25. "Plasmagnetic Levitation"

    By JTM³, May 21, 2006
    • 17 replies
    • 6.4k views
    • 
    • [Tycho?]
    • September 19, 2006