8 Oct2010 @j_bettany - 8 Oct 2010The Needham Question – http://bit.ly/dDq16t ›Post details ↗Original public post History Of Science Knowledge
10 Nov2010 @j_bettany - 10 Nov 20101,800-Year-Old Roman Multitool – http://bit.ly/aBuEYY ›Post details ↗Original public post History Of Science Knowledge
