The YTN Science Channel’s Documentary S+ which aired on 8pm, 6^th of December 2013 showed an appearance of Mechanical and Aerospace Engineering Professor Changdon Ki.<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" />

The program introduced the various uses of GPS, usually only known car navigations, to the viewers.

Professor Ki introduced how the GPS, which once used to be military technology, was introduced to the general public