the first recorded thoughts about ion propulsion was by robert goddard in 1906. the father of american rocketry. koski, known as the father of cosmonaut x he published in paper on it. and in the 1950s they do very important work on ion propulsion. you are making the entirely accurate point that engineers at hughes aircraft and elsewhere did, it was worked on by people in nassau and private industry from the 50s up until the present. so there is a rich history there of many very creative and talented people contributing to the development of it. if i suggested that jpl was the organization that developed it or thought of it, or was the only one to work on it, i did not mean to suggest that. when i set i raise the question of how could we travel around the solar system more easily and less expensively, it was that we could turn to the ion propulsion that brilliant people have been working on for nearly one century. >> it is very important for this travel, why did jpl not follow it exactly and it had such importance. >> i'd be happy to talk to about this more, but y

there is a professor there who was robert goddard so he got a master's at m.i.t. working on his doctor's degree but that was interrupted by the last parts of world war i they wanted him to go into the coast artillery he was writing his thesis on airplanes so he got into the signal corps and got his way into flying and his first assignment which was to the philippines so that was worth that to know that. [laughter] so the first assignment was as an aide to billy mitchell civic there are a few old people here. >> ask your neighbor but that is where the army chaplain by the way of the name say arnold married jessie ross and became jesse moon. they have to older daughters and a son. my father took a fancy to the older daughter and they saw each other their dad came home and turn around and came back to get married again eight 2/3 through egypt and the pyramids sully he finished up and eventually he starts at the air corps engineering school at the cook field that became right to feel that became wright-patterson air force base summary father was commandant between 192

terms for it.er that.s well back before the first recorded thoughts bout ion propulsion were by robert goddard in 1906. rocketry.american arkovski published a paper on it. in the 1950s they did very important work on ion propulsion. you're making the entirely accurate point that engineers at aircraft and elsewhere id was worked on by people in nasa and private industry from the '50s up to the present. o i mean, there's a rich history here of many very people and talented contributing to the development of it. that jpl was sted the organization that developed thought of it or was the only one to work on it, i didn't mean to suggest that. raised the that i question of how could we travel around the solar system more expensively, it was that we could turn to the propulsion that people, brilliant people had been nearly a century. very important. did jpl not forward -- it was such importance. i'd be happy to talk with you about this more elsewhere. some y have perhaps incomplete perceptions of jpl's role in the development. solely responsible for the development of ion propulsion. nasa industry t d