Transcript Share Facebook Twitter Embed Plus Dark Mode Cross Full Transcript Cross Brian Greene See Transcript Tuesday 02/16/1999 An explanation of string theory with physicist, Brian Greene. People in this video Brian Greene Category Science Other appearances February 2016 February 2016 July 2012 July 2012 May 2006 May 2006 November 2003 November 2003 February 1999 This interview is sponsored by