Dr. Henning Leidecker: "My life, from earliest memories to now, has been spent pondering how things work. This led me into university, to profess physics for decades. But then I came to NASA GFSC, and learned that the best way to be sure about how something works is to fix it when it's broken. I'll speak of the single tiny incandescent lamp that killed three GOES, of HST gyros running down, of exploding parts in TDRS, discuss why the Shuttle repeatedly failed to launch, and how these things got fixed by addressing the underlying physics."
Dr. Henning Leidecker, Chair, Goddard Senior Fellows, NASA Goddard Space Flight Center