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was director of education at james madison's month bill yeare in virginia.viinia. i was familiar with jennings' f ore considered by the white house historical association tof be the first memoir of life in the white house.nocences of jams madison," and as the title implies, it's really more about the so-called great man than it was about the author himself. my interest was in paul jennings. i set out to discover elements of his own biography to uncover the circumstances behind the original publication of the memoir in 1865 and to find an interview living direct descendents. a slave i...

[applause] >> well, thank you. my presentation is about the mars exploration rovers, which were twin robotic laboratories that began operating -- you're working on the feedback -- eight years ago on mars, one of which is still being used to explore the martian surface today. and as of course most of you know, i am sure, curiosity, another rover, and landed a few weeks ago and i have a few words to say about that at the end of my presentation. so, my story is about how people relate to these robotic systems. the mars exploration mission also known as mer or m-e-r challenges the way we...