Gentry Lee (Chief Engineer for the Planetary Flight Systems Directorate at the Jet Propulsion Laboratory, author and super smart guy!!) makes it weird! Do NOT skip this one because he's not a show-biz household name, he is a real delight! TRUST.
More with Gentry Lee
Jul 16, 2014 · 1:08:49
Jul 16, 2014
1:08:49
