i graduated physics at cornell in 1965 and spent mike working career at jpl. you indicated not everything you wrote was completely verified. here we go. have there been any major changes since it was published in 2010? i presume you're talking about the grand design. >> guest: some people have been carrying the theory out further but the difficulty with finding support for that theory or differentiating other ideas is we need better technology to study the cosmic microwave background radiation. the afterglow of the big bang. the idea is studying the details of that, supporting evidence for stephen's ideas hasn't gotten there yet. sometimes you have to wait a long time. studying black holes in the 60s, people thought we were never going to see one. then there was the candidate they were studying. not until the early 90s did we have an image of a black hole until a few years ago. sometimes it takes a long time. >> host: if i am not mistaken, i don't know the specifics but einstein's theory of general relativity was essentially proven only a few years ago. >> gue

i graduated from cornell 1965 spent my working career at jpl.you indicated not everything you wrote was completely verified. hasn't been any major changes since it was published in 2010? what the grand design? >> and to find some support from that theory with those ideas is to have better technology like cosmic microwave background radiation or the afterglow of the big bang. and then to study the my night - - the minute details of that so maybe another ten years sometimes you have to write on - - wait a long time and then talking about particles in the sixties and then there was a candidate they were studying so sometimes it takes a long time. >> if i'm not mistaken i don't know the specifics but einstein's theory of general relativity was essentially proven only a few years ago. >> but then to say we talk about the specific context but the first evidence for that is the observation that it confirmed a tradition that was different in just four years and with a 1919 observation? and there have been others and the gps system that everybody uses it

and the satellite itself was sponsored by jpl. it discovered the radiation belt. and at 17, in my mind i thought, this is profound, new knowledge for everyone on our planet. and this whole launching business and going to space and putting satellites up there, it's going to change the world i live in, and i am getting in on it. and i applied for a job as an engineer's aid right out of high school. accepted at the university of florida. i was a wee bit of a math whiz at high school and i got the job. thank goodness the ad said student. they hired one boy and me. if it just said boy i would not have even applied. i hit the gold standard in supervision. i had a wonderful supervisor that first summer who told everybody, no, this is not a coffee girl. she's going to be an engineer someday. we are giving her an engineering job. so i was lucky i had a great supervisor to start me down the path of my career. but we are celebrating apollo 11, and i wanted to tell you a few facts about women in 1969. 400,000 people across this great country worked on the apollo 11 mission to

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