Physics & Math

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  1. zanket

    (Alpha) General relativity is self-inconsistent

    zanket, Feb 21, 2007 ... 4 5 6
    Replies:
    105
    Views:
    8,727
    Farsight
    May 17, 2007
  2. Jolonar

    Light Drive.

    Jolonar, Jul 5, 2004 ... 6 7 8
    Replies:
    150
    Views:
    8,731
    Brandon9000
    Aug 4, 2004
  3. Saint

    Does time exist?

    Saint, Dec 10, 2021 ... 6 7 8
    Replies:
    149
    Views:
    8,745
    Dicart
    Jun 9, 2022
  4. Syzygys

    Bullet acceleration

    Syzygys, Jun 10, 2010 ... 2
    Replies:
    25
    Views:
    8,747
    Dywyddyr
    Jun 27, 2010
  5. §outh§tar

    How do you prove the greatest integer theorem?

    §outh§tar, Jan 7, 2006 ... 2
    Replies:
    20
    Views:
    8,748
    §outh§tar
    Jan 24, 2006
  6. Dinosaur

    Calculating nth digit of pi

    Dinosaur, Apr 14, 2010
    Replies:
    13
    Views:
    8,751
    Fraggle Rocker
    Apr 18, 2010
  7. arfa brane

    Time and information

    arfa brane, Jan 14, 2022 ... 5 6 7
    Replies:
    127
    Views:
    8,761
    BdS
    Jun 20, 2022
  8. Motor Daddy

    The Squared Circle

    Motor Daddy, May 7, 2022 ... 9 10 11
    Replies:
    216
    Views:
    8,826
    James R
    Jun 13, 2022
  9. RajeshTrivedi

    What is the cause of Radioactive Decay

    RajeshTrivedi, Aug 7, 2017 ... 4 5 6
    Replies:
    111
    Views:
    8,873
    iceaura
    Sep 13, 2017
  10. pluto2

    What is a periodic crystal lattice?

    pluto2, Aug 11, 2008 ... 2
    Replies:
    29
    Views:
    8,905
    Trippy
    Aug 15, 2008
  11. GreenTea

    find vector field F, given curl F

    GreenTea, Apr 18, 2013
    Replies:
    6
    Views:
    8,930
    AlphaNumeric
    Apr 19, 2013
  12. w1z4rd

    Can matter and/or energy be created or destroyed?

    w1z4rd, Jan 22, 2007 ... 2 3 4
    Replies:
    61
    Views:
    8,946
    John Connellan
    Feb 2, 2007
  13. khan

    Momentum, tennis ball, and the wall

    khan, Mar 10, 2012
    Replies:
    11
    Views:
    8,967
    Dinosaur
    Mar 25, 2012
  14. zanket

    General relativity is self-inconsistent v3

    zanket, Jul 29, 2007 ... 7 8 9
    Replies:
    170
    Views:
    8,981
    quadraphonics
    Mar 14, 2009
  15. kriminal99

    Proof that pi is rational - lol

    kriminal99, Mar 29, 2005 ... 6 7 8
    Replies:
    152
    Views:
    8,985
    kriminal99
    Jun 1, 2005
  16. Cat_with_no_eyes

    Using a graph to calculate the half life of proactinium? How do I do the gradient?

    Cat_with_no_eyes, Nov 6, 2010
    Replies:
    5
    Views:
    9,008
    AlphaNumeric
    Nov 7, 2010
  17. cjard

    the "if some men are doctors" riddle in simple sets..

    cjard, Feb 1, 2012
    Replies:
    5
    Views:
    9,021
    Pete
    Feb 2, 2012
  18. LuckAse

    Speed of light question

    LuckAse, Feb 7, 2010 ... 4 5 6
    Replies:
    119
    Views:
    9,069
    Enmos
    Oct 12, 2011
  19. UltraViolet

    How do I keep my house cool...

    UltraViolet, Mar 24, 2010 ... 2
    Replies:
    21
    Views:
    9,078
    Spud Emperor
    Mar 28, 2010
  20. Lakon

    Roulette

    Lakon, Sep 3, 2013 ... 5 6 7
    Replies:
    130
    Views:
    9,087
    Dinosaur
    May 6, 2014
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