Woodworking GuQin 古琴 February 4 to June 27, 2010 Mathematical Calculations Illustrations Book (25MB) Arched Bridge June 26 to July 24, 2009 Arrows December 21 to 25, 2007 Deflex Recurve Bow December 21 to 25, 2007 Kayak August 18 to September 14, 2003 GuQin 古琴 December 21, 1998 to March 4, 1999 Mathematical Translation of Yuguzhai Qinpu Construction Journal Eleven-Stringed Lute March to May, 1995