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                        | #SCIENTIFIC AMERICAN.txt | 
                        1.06KB | 
                    
                    
                        | #workerbee.txt | 
                        521B | 
                    
                    
                        | Scientific American (1993-01).pdf | 
                        6.66MB | 
                    
                    
                        | Scientific American (1993-02).pdf | 
                        5.82MB | 
                    
                    
                        | Scientific American (1993-03).pdf | 
                        5.63MB | 
                    
                    
                        | Scientific American (1993-04).pdf | 
                        5.57MB | 
                    
                    
                        | Scientific American (1993-05).pdf | 
                        6.65MB | 
                    
                    
                        | Scientific American (1993-06).pdf | 
                        6.25MB | 
                    
                    
                        | Scientific American (1993-07).pdf | 
                        6.78MB | 
                    
                    
                        | Scientific American (1993-08).pdf | 
                        5.29MB | 
                    
                    
                        | Scientific American (1993-09).pdf | 
                        11.62MB | 
                    
                    
                        | Scientific American (1993-10).pdf | 
                        7.22MB | 
                    
                    
                        | Scientific American (1993-11).pdf | 
                        5.99MB | 
                    
                    
                        | Scientific American (1993-12).pdf | 
                        6.82MB | 
                    
                    
                        | Scientific American (1994-01).pdf | 
                        5.88MB | 
                    
                    
                        | Scientific American (1994-02).pdf | 
                        5.81MB | 
                    
                    
                        | Scientific American (1994-03).pdf | 
                        6.54MB | 
                    
                    
                        | Scientific American (1994-04).pdf | 
                        6.77MB | 
                    
                    
                        | Scientific American (1994-05).pdf | 
                        5.65MB | 
                    
                    
                        | Scientific American (1994-06).pdf | 
                        5.52MB | 
                    
                    
                        | Scientific American (1994-07).pdf | 
                        5.77MB | 
                    
                    
                        | Scientific American (1994-08).pdf | 
                        6.48MB | 
                    
                    
                        | Scientific American (1994-09).pdf | 
                        5.82MB | 
                    
                    
                        | Scientific American (1994-10).pdf | 
                        7.75MB | 
                    
                    
                        | Scientific American (1994-11).pdf | 
                        5.92MB | 
                    
                    
                        | Scientific American (1994-12).pdf | 
                        6.33MB | 
                    
                    
                        | Scientific American (1995-01).pdf | 
                        5.41MB | 
                    
                    
                        | Scientific American (1995-02).pdf | 
                        5.60MB | 
                    
                    
                        | Scientific American (1995-03).pdf | 
                        5.87MB | 
                    
                    
                        | Scientific American (1995-04).pdf | 
                        5.49MB | 
                    
                    
                        | Scientific American (1995-05).pdf | 
                        7.17MB | 
                    
                    
                        | Scientific American (1995-06).pdf | 
                        13.35MB | 
                    
                    
                        | Scientific American (1995-07).pdf | 
                        6.78MB | 
                    
                    
                        | Scientific American (1995-08).pdf | 
                        6.10MB | 
                    
                    
                        | Scientific American (1995-09).pdf | 
                        11.75MB | 
                    
                    
                        | Scientific American (1995-10).pdf | 
                        7.21MB | 
                    
                    
                        | Scientific American (1995-11).pdf | 
                        6.11MB | 
                    
                    
                        | Scientific American (1995-12).pdf | 
                        6.85MB | 
                    
                    
                        | Scientific American (1996-01).pdf | 
                        6.72MB | 
                    
                    
                        | Scientific American (1996-02).pdf | 
                        4.85MB | 
                    
                    
                        | Scientific American (1996-03).pdf | 
                        6.27MB | 
                    
                    
                        | Scientific American (1996-04).pdf | 
                        7.46MB | 
                    
                    
                        | Scientific American (1996-05).pdf | 
                        8.04MB | 
                    
                    
                        | Scientific American (1996-06).pdf | 
                        7.49MB | 
                    
                    
                        | Scientific American (1996-07).pdf | 
                        7.71MB | 
                    
                    
                        | Scientific American (1996-08).pdf | 
                        9.19MB | 
                    
                    
                        | Scientific American (1996-09).pdf | 
                        9.88MB | 
                    
                    
                        | Scientific American (1996-10).pdf | 
                        7.45MB | 
                    
                    
                        | Scientific American (1996-11).pdf | 
                        8.65MB | 
                    
                    
                        | Scientific American (1996-12).pdf | 
                        8.45MB | 
                    
                    
                        | Scientific American (1997-01).pdf | 
                        5.91MB | 
                    
                    
                        | Scientific American (1997-02).pdf | 
                        7.74MB | 
                    
                    
                        | Scientific American (1997-03).pdf | 
                        8.93MB | 
                    
                    
                        | Scientific American (1997-04).pdf | 
                        10.97MB | 
                    
                    
                        | Scientific American (1997-05).pdf | 
                        8.27MB | 
                    
                    
                        | Scientific American (1997-06).pdf | 
                        9.71MB | 
                    
                    
                        | Scientific American (1997-07).pdf | 
                        7.84MB | 
                    
                    
                        | Scientific American (1997-08).pdf | 
                        7.40MB | 
                    
                    
                        | Scientific American (1997-09).pdf | 
                        7.62MB | 
                    
                    
                        | Scientific American (1997-10).pdf | 
                        10.66MB | 
                    
                    
                        | Scientific American (1997-11).pdf | 
                        9.86MB | 
                    
                    
                        | Scientific American (1997-12).pdf | 
                        10.91MB | 
                    
                    
                        | Scientific American (1998-01).pdf | 
                        9.67MB | 
                    
                    
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                        11.55MB | 
                    
                    
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                        6.12MB | 
                    
                    
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                        6.20MB | 
                    
                    
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                        5.46MB | 
                    
                    
                        | Scientific American (1998-06).pdf | 
                        6.35MB | 
                    
                    
                        | Scientific American (1998-07).pdf | 
                        5.22MB | 
                    
                    
                        | Scientific American (1998-08).pdf | 
                        7.40MB | 
                    
                    
                        | Scientific American (1998-09).pdf | 
                        5.65MB | 
                    
                    
                        | Scientific American (1998-10).pdf | 
                        7.97MB | 
                    
                    
                        | Scientific American (1998-11).pdf | 
                        5.28MB | 
                    
                    
                        | Scientific American (1998-12).pdf | 
                        6.31MB | 
                    
                    
                        | Scientific American (1999-01).pdf | 
                        7.16MB | 
                    
                    
                        | Scientific American (1999-02).pdf | 
                        6.67MB | 
                    
                    
                        | Scientific American (1999-03).pdf | 
                        7.57MB | 
                    
                    
                        | Scientific American (1999-04).pdf | 
                        8.24MB | 
                    
                    
                        | Scientific American (1999-05).pdf | 
                        13.89MB | 
                    
                    
                        | Scientific American (1999-06).pdf | 
                        10.57MB | 
                    
                    
                        | Scientific American (1999-07).pdf | 
                        6.27MB | 
                    
                    
                        | Scientific American (1999-08).pdf | 
                        6.42MB | 
                    
                    
                        | Scientific American (1999-09).pdf | 
                        9.16MB | 
                    
                    
                        | Scientific American (1999-10).pdf | 
                        9.62MB | 
                    
                    
                        | Scientific American (1999-11).pdf | 
                        5.97MB | 
                    
                    
                        | Scientific American (1999-12).pdf | 
                        7.69MB | 
                    
                    
                        | Scientific American (2000-01).pdf | 
                        5.71MB | 
                    
                    
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                        6.55MB | 
                    
                    
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                        6.41MB | 
                    
                    
                        | Scientific American (2000-04).pdf | 
                        9.89MB | 
                    
                    
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                        5.95MB | 
                    
                    
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                        6.80MB | 
                    
                    
                        | Scientific American (2000-07).pdf | 
                        7.54MB | 
                    
                    
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                        8.94MB | 
                    
                    
                        | Scientific American (2000-09).pdf | 
                        7.18MB | 
                    
                    
                        | Scientific American (2000-10).pdf | 
                        6.97MB | 
                    
                    
                        | Scientific American (2000-11).pdf | 
                        8.15MB | 
                    
                    
                        | Scientific American (2000-12).pdf | 
                        7.86MB | 
                    
                    
                        | Scientific American (2001-01).pdf | 
                        7.72MB | 
                    
                    
                        | Scientific American (2001-02).pdf | 
                        7.81MB | 
                    
                    
                        | Scientific American (2001-03).pdf | 
                        7.54MB | 
                    
                    
                        | Scientific American (2001-04).pdf | 
                        5.31MB | 
                    
                    
                        | Scientific American (2001-05).pdf | 
                        5.55MB | 
                    
                    
                        | Scientific American (2001-06).pdf | 
                        7.10MB | 
                    
                    
                        | Scientific American (2001-07).pdf | 
                        6.24MB | 
                    
                    
                        | Scientific American (2001-08).pdf | 
                        5.88MB | 
                    
                    
                        | Scientific American (2001-09).pdf | 
                        10.28MB | 
                    
                    
                        | Scientific American (2001-10).pdf | 
                        11.16MB | 
                    
                    
                        | Scientific American (2001-11).pdf | 
                        11.80MB | 
                    
                    
                        | Scientific American (2001-12).pdf | 
                        12.77MB | 
                    
                    
                        | Scientific American (2002-01).pdf | 
                        3.34MB | 
                    
                    
                        | Scientific American (2002-02).pdf | 
                        3.06MB | 
                    
                    
                        | Scientific American (2002-03).pdf | 
                        4.42MB | 
                    
                    
                        | Scientific American (2002-04).pdf | 
                        3.89MB | 
                    
                    
                        | Scientific American (2002-05).pdf | 
                        3.89MB | 
                    
                    
                        | Scientific American (2002-06).pdf | 
                        3.48MB | 
                    
                    
                        | Scientific American (2002-07).pdf | 
                        4.75MB | 
                    
                    
                        | Scientific American (2002-08).pdf | 
                        2.99MB | 
                    
                    
                        | Scientific American (2002-09).pdf | 
                        3.21MB | 
                    
                    
                        | Scientific American (2002-10).pdf | 
                        3.43MB | 
                    
                    
                        | Scientific American (2002-11).pdf | 
                        3.09MB | 
                    
                    
                        | Scientific American (2002-12).pdf | 
                        4.16MB | 
                    
                    
                        | Scientific American (2003-01).pdf | 
                        3.83MB | 
                    
                    
                        | Scientific American (2003-02).pdf | 
                        2.75MB | 
                    
                    
                        | Scientific American (2003-03).pdf | 
                        3.34MB | 
                    
                    
                        | Scientific American (2003-04).pdf | 
                        3.09MB | 
                    
                    
                        | Scientific American (2003-05).pdf | 
                        4.02MB | 
                    
                    
                        | Scientific American (2003-06).pdf | 
                        4.22MB | 
                    
                    
                        | Scientific American (2003-07).pdf | 
                        2.98MB | 
                    
                    
                        | Scientific American (2003-08).pdf | 
                        2.91MB | 
                    
                    
                        | Scientific American (2003-09).pdf | 
                        2.78MB | 
                    
                    
                        | Scientific American (2003-10).pdf | 
                        3.20MB | 
                    
                    
                        | Scientific American (2003-11).pdf | 
                        3.09MB | 
                    
                    
                        | Scientific American (2003-12).pdf | 
                        2.91MB | 
                    
                    
                        | Scientific American (2004-01).pdf | 
                        3.25MB | 
                    
                    
                        | Scientific American (2004-02).pdf | 
                        3.17MB | 
                    
                    
                        | Scientific American (2004-03).pdf | 
                        2.37MB | 
                    
                    
                        | Scientific American (2004-04).pdf | 
                        2.13MB | 
                    
                    
                        | Scientific American (2004-05).pdf | 
                        2.83MB | 
                    
                    
                        | Scientific American (2004-06).pdf | 
                        5.41MB | 
                    
                    
                        | Scientific American (2004-07).pdf | 
                        3.03MB | 
                    
                    
                        | Scientific American (2004-08).pdf | 
                        3.46MB | 
                    
                    
                        | Scientific American (2004-09).pdf | 
                        2.56MB | 
                    
                    
                        | Scientific American (2004-10).pdf | 
                        3.07MB | 
                    
                    
                        | Scientific American (2004-11).pdf | 
                        4.11MB | 
                    
                    
                        | Scientific American (2004-12).pdf | 
                        4.55MB | 
                    
                    
                        | Scientific American (2005-01).pdf | 
                        5.99MB | 
                    
                    
                        | Scientific American (2005-02).pdf | 
                        4.82MB | 
                    
                    
                        | Scientific American (2005-03).pdf | 
                        7.92MB | 
                    
                    
                        | Scientific American (2005-04).pdf | 
                        6.32MB | 
                    
                    
                        | Scientific American (2005-05).pdf | 
                        6.11MB | 
                    
                    
                        | Scientific American (2005-06).pdf | 
                        5.22MB | 
                    
                    
                        | Scientific American (2005-07).pdf | 
                        6.35MB | 
                    
                    
                        | Scientific American (2005-08).pdf | 
                        4.17MB | 
                    
                    
                        | Scientific American (2005-09).pdf | 
                        9.26MB | 
                    
                    
                        | Scientific American (2005-10).pdf | 
                        8.54MB | 
                    
                    
                        | Scientific American (2005-11).pdf | 
                        8.65MB | 
                    
                    
                        | Scientific American (2005-12).pdf | 
                        5.73MB | 
                    
                    
                        | Scientific American (2006-01).pdf | 
                        5.31MB | 
                    
                    
                        | Scientific American (2006-02).pdf | 
                        7.75MB | 
                    
                    
                        | Scientific American (2006-03).pdf | 
                        4.70MB | 
                    
                    
                        | Scientific American (2006-04).pdf | 
                        6.65MB | 
                    
                    
                        | Scientific American (2006-05).pdf | 
                        9.88MB | 
                    
                    
                        | Scientific American (2006-06).pdf | 
                        6.44MB | 
                    
                    
                        | Scientific American (2006-07).pdf | 
                        3.97MB | 
                    
                    
                        | Scientific American (2006-08).pdf | 
                        10.36MB | 
                    
                    
                        | Scientific American (2006-09).pdf | 
                        6.34MB | 
                    
                    
                        | Scientific American (2006-10).pdf | 
                        5.40MB | 
                    
                    
                        | Scientific American (2006-11).pdf | 
                        7.18MB | 
                    
                    
                        | Scientific American (2006-12).pdf | 
                        5.95MB | 
                    
                    
                        | Scientific American (2007-01).pdf | 
                        4.93MB | 
                    
                    
                        | Scientific American (2007-02).pdf | 
                        7.01MB | 
                    
                    
                        | Scientific American (2007-03).pdf | 
                        4.89MB | 
                    
                    
                        | Scientific American (2007-04).pdf | 
                        7.65MB | 
                    
                    
                        | Scientific American (2007-05).pdf | 
                        6.15MB | 
                    
                    
                        | Scientific American (2007-06).pdf | 
                        4.47MB | 
                    
                    
                        | Scientific American (2007-07).pdf | 
                        9.27MB | 
                    
                    
                        | Scientific American (2007-08).pdf | 
                        6.57MB | 
                    
                    
                        | Scientific American (2007-09).pdf | 
                        9.59MB | 
                    
                    
                        | Scientific American (2007-10).pdf | 
                        7.25MB | 
                    
                    
                        | Scientific American (2007-11).pdf | 
                        8.05MB | 
                    
                    
                        | Scientific American (2007-12).pdf | 
                        7.89MB | 
                    
                    
                        | Scientific American (2008-01).pdf | 
                        10.44MB | 
                    
                    
                        | Scientific American (2008-02).pdf | 
                        14.24MB | 
                    
                    
                        | Scientific American (2008-03).pdf | 
                        9.16MB | 
                    
                    
                        | Scientific American (2008-04).pdf | 
                        11.29MB | 
                    
                    
                        | Scientific American (2008-05).pdf | 
                        9.93MB | 
                    
                    
                        | Scientific American (2008-06).pdf | 
                        10.00MB | 
                    
                    
                        | Scientific American (2008-07).pdf | 
                        8.55MB | 
                    
                    
                        | Scientific American (2008-08).pdf | 
                        13.59MB | 
                    
                    
                        | Scientific American (2008-09).pdf | 
                        11.10MB | 
                    
                    
                        | Scientific American (2008-10).pdf | 
                        27.05MB | 
                    
                    
                        | Scientific American (2008-11).pdf | 
                        23.86MB | 
                    
                    
                        | Scientific American (2008-12).pdf | 
                        19.08MB | 
                    
                    
                        | Scientific American (2009-01).pdf | 
                        12.30MB | 
                    
                    
                        | Scientific American (2009-02).pdf | 
                        18.88MB | 
                    
                    
                        | Scientific American (2009-03).pdf | 
                        11.26MB | 
                    
                    
                        | Scientific American (2009-04).pdf | 
                        8.64MB | 
                    
                    
                        | Scientific American (2009-05).pdf | 
                        6.52MB | 
                    
                    
                        | Scientific American (2009-06).pdf | 
                        17.93MB | 
                    
                    
                        | Scientific American (2009-07).pdf | 
                        11.21MB | 
                    
                    
                        | Scientific American (2009-08).pdf | 
                        14.64MB | 
                    
                    
                        | Scientific American (2009-09).pdf | 
                        19.49MB | 
                    
                    
                        | Scientific American (2009-10).pdf | 
                        20.00MB | 
                    
                    
                        | Scientific American (2009-11).pdf | 
                        13.56MB | 
                    
                    
                        | Scientific American (2009-12).pdf | 
                        32.56MB | 
                    
                    
                        | Scientific American (2010-01).pdf | 
                        15.12MB | 
                    
                    
                        | Scientific American (2010-02).pdf | 
                        10.28MB | 
                    
                    
                        | Scientific American (2010-03).pdf | 
                        11.76MB | 
                    
                    
                        | Scientific American (2010-04).pdf | 
                        15.42MB | 
                    
                    
                        | Scientific American (2010-05).pdf | 
                        13.55MB | 
                    
                    
                        | Scientific American (2010-06).pdf | 
                        7.51MB | 
                    
                    
                        | Scientific American (2010-07).pdf | 
                        12.97MB | 
                    
                    
                        | Scientific American (2010-08).pdf | 
                        19.10MB | 
                    
                    
                        | Scientific American (2010-09).pdf | 
                        15.50MB | 
                    
                    
                        | Scientific American (2010-10).pdf | 
                        8.76MB | 
                    
                    
                        | Scientific American (2010-11).pdf | 
                        20.65MB | 
                    
                    
                        | Scientific American (2010-12).pdf | 
                        20.36MB | 
                    
                    
                        | Scientific American (2011-01).pdf | 
                        23.61MB | 
                    
                    
                        | Scientific American (2011-02).pdf | 
                        12.31MB | 
                    
                    
                        | Scientific American (2011-03).pdf | 
                        10.40MB | 
                    
                    
                        | Scientific American (2011-04).pdf | 
                        24.95MB | 
                    
                    
                        | Scientific American (2011-05).pdf | 
                        25.47MB | 
                    
                    
                        | Scientific American (2011-06).pdf | 
                        21.37MB | 
                    
                    
                        | Scientific American (2011-07).pdf | 
                        14.34MB | 
                    
                    
                        | Scientific American (2011-08).pdf | 
                        18.03MB | 
                    
                    
                        | Scientific American (2011-09).pdf | 
                        21.70MB | 
                    
                    
                        | Scientific American (2011-10).pdf | 
                        20.97MB | 
                    
                    
                        | Scientific American (2011-11).pdf | 
                        19.78MB | 
                    
                    
                        | Scientific American (2011-12).pdf | 
                        26.43MB | 
                    
                    
                        | Scientific American (2012-01).pdf | 
                        20.23MB | 
                    
                    
                        | Scientific American (2012-02).pdf | 
                        18.11MB | 
                    
                    
                        | Scientific American (2012-03).pdf | 
                        25.31MB | 
                    
                    
                        | Scientific American (2012-04).pdf | 
                        26.71MB | 
                    
                    
                        | Scientific American (2012-05).pdf | 
                        28.64MB | 
                    
                    
                        | Scientific American (2012-06).pdf | 
                        24.08MB | 
                    
                    
                        | Scientific American (2012-07).pdf | 
                        25.50MB | 
                    
                    
                        | Scientific American (2012-08).pdf | 
                        24.87MB | 
                    
                    
                        | Scientific American (2012-09).pdf | 
                        31.12MB | 
                    
                    
                        | Scientific American (2012-10).pdf | 
                        34.31MB | 
                    
                    
                        | Scientific American (2012-11).pdf | 
                        21.96MB | 
                    
                    
                        | Scientific American (2012-12).pdf | 
                        22.67MB | 
                    
                    
                        | Scientific American (2013-01).pdf | 
                        20.59MB | 
                    
                    
                        | Scientific American (2013-02).pdf | 
                        17.45MB | 
                    
                    
                        | Scientific American (2013-03).pdf | 
                        11.84MB | 
                    
                    
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                        16.35MB | 
                    
                    
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                        14.50MB | 
                    
                    
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                        23.09MB | 
                    
                    
                        | Scientific American (2013-07).pdf | 
                        14.76MB | 
                    
                    
                        | Scientific American (2013-08).pdf | 
                        26.09MB | 
                    
                    
                        | Scientific American (2013-09).pdf | 
                        21.78MB | 
                    
                    
                        | Scientific American (2013-10).pdf | 
                        87.31MB | 
                    
                    
                        | Scientific American (2013-11).pdf | 
                        14.99MB | 
                    
                    
                        | Scientific American (2013-12).pdf | 
                        35.21MB | 
                    
                    
                        | Scientific American (2014-01).pdf | 
                        11.89MB | 
                    
                    
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                        26.85MB | 
                    
                    
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                        36.53MB | 
                    
                    
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                        35.81MB | 
                    
                    
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                        | Scientific American (2014-06).pdf | 
                        34.04MB | 
                    
                    
                        | Scientific American (2014-07).pdf | 
                        33.49MB | 
                    
                    
                        | Scientific American (2014-08).pdf | 
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                        | Scientific American (2014-09).pdf | 
                        51.92MB | 
                    
                    
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                        31.78MB | 
                    
                    
                        | Scientific American (2014-11).pdf | 
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                        | Scientific American (2014-12).pdf | 
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                        | Scientific American (2015-01).pdf | 
                        43.18MB | 
                    
                    
                        | Scientific American (2015-02).pdf | 
                        27.68MB | 
                    
                    
                        | Scientific American (2015-03).pdf | 
                        34.59MB | 
                    
                    
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                        31.57MB | 
                    
                    
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                        22.11MB | 
                    
                    
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                        17.56MB | 
                    
                    
                        | Scientific American (2015-07).pdf | 
                        16.83MB | 
                    
                    
                        | Scientific American (2015-08).pdf | 
                        27.85MB | 
                    
                    
                        | Scientific American (2015-09).pdf | 
                        30.14MB | 
                    
                    
                        | Scientific American (2015-10).pdf | 
                        90.65MB | 
                    
                    
                        | Scientific American (2015-11).pdf | 
                        50.23MB | 
                    
                    
                        | Scientific American (2015-12).pdf | 
                        106.38MB | 
                    
                    
                        | Scientific American (2016-01).pdf | 
                        16.98MB | 
                    
                    
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                        16.76MB | 
                    
                    
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                        17.37MB | 
                    
                    
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                        18.81MB | 
                    
                    
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                        19.60MB | 
                    
                    
                        | Scientific American (2016-07).pdf | 
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                        28.46MB | 
                    
                    
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                        | Scientific American (2016-11).pdf | 
                        19.92MB | 
                    
                    
                        | Scientific American (2016-12).pdf | 
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                        29.59MB | 
                    
                    
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                        35.45MB | 
                    
                    
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                        18.15MB | 
                    
                    
                        | Scientific American (2017-11).pdf | 
                        37.16MB | 
                    
                    
                        | Scientific American (2017-12).pdf | 
                        19.81MB | 
                    
                    
                        | Scientific American (2018-01).pdf | 
                        17.32MB | 
                    
                    
                        | Scientific American (2018-02).pdf | 
                        18.61MB | 
                    
                    
                        | Scientific American (2018-03).pdf | 
                        14.37MB | 
                    
                    
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                        25.40MB | 
                    
                    
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                        14.51MB | 
                    
                    
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                        16.50MB | 
                    
                    
                        | Scientific American (2018-07).pdf | 
                        27.61MB | 
                    
                    
                        | Scientific American (2018-08).pdf | 
                        27.05MB | 
                    
                    
                        | Scientific American (2018-09).pdf | 
                        36.10MB | 
                    
                    
                        | Scientific American (2018-10).pdf | 
                        17.97MB | 
                    
                    
                        | Scientific American (2018-11).pdf | 
                        35.70MB | 
                    
                    
                        | Scientific American (2018-12).pdf | 
                        34.55MB | 
                    
                    
                        | Scientific American (2019-01).pdf | 
                        11.85MB | 
                    
                    
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                        36.07MB | 
                    
                    
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                        32.59MB | 
                    
                    
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                        20.10MB | 
                    
                    
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                        23.54MB | 
                    
                    
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                        21.32MB | 
                    
                    
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                        23.47MB | 
                    
                    
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                        32.09MB | 
                    
                    
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                        31.32MB | 
                    
                    
                        | Scientific American (2019-10).pdf | 
                        15.72MB | 
                    
                    
                        | Scientific American (2019-11).pdf | 
                        34.46MB | 
                    
                    
                        | Scientific American (2019-12).pdf | 
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                        | Scientific American (2020-01).pdf | 
                        26.21MB | 
                    
                    
                        | Scientific American (2020-02).pdf | 
                        27.15MB | 
                    
                    
                        | Scientific American (2020-03).pdf | 
                        22.68MB | 
                    
                    
                        | Scientific American (2020-04).pdf | 
                        19.38MB | 
                    
                    
                        | Scientific American (2020-05).pdf | 
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                        | Scientific American (2020-06).pdf | 
                        13.43MB | 
                    
                    
                        | Scientific American (2020-07).pdf | 
                        29.43MB | 
                    
                    
                        | Scientific American (2020-08).pdf | 
                        35.34MB | 
                    
                    
                        | Scientific American (2020-09).pdf | 
                        34.13MB | 
                    
                    
                        | Scientific American (2020-10).pdf | 
                        20.29MB | 
                    
                    
                        | Scientific American (2020-11).pdf | 
                        21.90MB | 
                    
                    
                        | Scientific American (2020-12).pdf | 
                        26.41MB |