Physics & Math

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  1. Pincho Paxton

    The speed of light may have been broken.

    Pincho Paxton, Sep 22, 2011 ... 29 30 31
    Replies:
    610
    Views:
    43,550
    James R
    Nov 21, 2011
  2. MetaKron

    Magnets sticking to stainless steel?

    MetaKron, Jun 18, 2005
    Replies:
    10
    Views:
    39,776
    metallurgy.ir
    May 7, 2009
  3. Fednis48

    Basic Special Relativity Question

    Fednis48, Apr 22, 2013 ... 39 40 41
    Replies:
    814
    Views:
    38,501
    Pete
    May 14, 2013
  4. miex

    Derivation of Surface Area of a Sphere

    miex, Nov 20, 2006
    Replies:
    15
    Views:
    37,835
    mausgang
    Nov 30, 2008
  5. Plazma Inferno!

    Gravity waves detected for the first time ever

    Plazma Inferno!, Jan 12, 2016 ... 43 44 45
    Replies:
    899
    Views:
    37,560
    origin
    Jun 2, 2016
  6. ddovala

    integral of x^x

    ddovala, Jun 27, 2004 ... 2
    Replies:
    28
    Views:
    36,751
    Dunnoyet
    Dec 1, 2005
  7. Wexler

    The best visual description of the size of one billion?

    Wexler, Mar 27, 2008 ... 2 3
    Replies:
    56
    Views:
    36,431
    scheherazade
    Oct 1, 2011
  8. ash64449

    On the idea of time in physics-relativity

    ash64449, Mar 15, 2013 ... 31 32 33
    Replies:
    654
    Views:
    35,914
    ash64449
    Apr 6, 2013
  9. Prosoothus

    Absolute Reference Frame

    Prosoothus, Mar 27, 2006 ... 40 41 42
    Replies:
    821
    Views:
    34,945
    DaleSpam
    Jun 8, 2006
  10. Pete

    Is relativity of simultaneity measurable?

    Pete, May 8, 2013 ... 31 32 33
    Replies:
    658
    Views:
    34,462
    JJM
    Jun 9, 2013
  11. arfa brane

    Observers

    arfa brane, Apr 18, 2017 ... 26 27 28
    Replies:
    545
    Views:
    34,012
    DaveC426913
    Aug 21, 2017
  12. MacM
    Locked

    Is The Theory of Relativity Fatally Flawed?

    MacM, Nov 2, 2004 ... 25 26 27
    Replies:
    526
    Views:
    34,010
    James R
    Oct 4, 2005
  13. kingwinner

    Elastic Powered Car

    kingwinner, Mar 19, 2006 ... 2
    Replies:
    35
    Views:
    33,245
    kingwinner
    Apr 15, 2006
  14. Prosoothus

    Nature of Time Dilation and Length Contraction

    Prosoothus, Apr 4, 2006 ... 26 27 28
    Replies:
    559
    Views:
    31,390
    Montec
    Jun 28, 2006
  15. Wolv1

    Wolv1's questions about causality and particles

    Wolv1, Aug 25, 2008 ... 36 37 38
    Replies:
    744
    Views:
    30,700
    Wolv1
    Oct 30, 2008
  16. leopold

    Ml vs. cc

    leopold, Nov 28, 2007
    Replies:
    13
    Views:
    28,464
    leopold
    Nov 28, 2007
  17. Maxila

    "Light is frame-dependent in PF, but constant in SR"

    Maxila, Jan 22, 2013 ... 14 15 16
    Replies:
    318
    Views:
    28,106
    Syne
    Feb 19, 2013
  18. pluto2

    Why does a gas have more potential energy than a liquid and even more than a solid?

    pluto2, Mar 15, 2014
    Replies:
    10
    Views:
    28,078
    origin
    Mar 16, 2014
  19. manoharprabhu

    Integrate X^X.

    manoharprabhu, Jan 22, 2008
    Replies:
    17
    Views:
    27,287
    Myles
    Jan 26, 2008
  20. James R

    Comparison of Special Relativity with a Galilean "preferred frame" theory

    James R, Jan 14, 2013 ... 14 15 16
    Replies:
    308
    Views:
    27,076
    Syne
    Feb 20, 2013
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