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History of artificial satellitesBOOK FOR
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p249Bill Guier and George Weiffenbach supplied the information for pages 61 to 65.The textbook consulted for pages 65 to 69 is The Feynman Lectures on Physics, volume one, chapter 34 (Addison Wesley, 1963).The material on pages 70 to 72 is based on the memories of George Weiffenbach, Bill Guier, and Henry Elliott. They all spoke to me independently. Guier and Weiffenbach spoke to me many times. Each remembered things a little differently, but their memories differed little in substance. These memories are, to my knowledge, the only sources of information for Guier's and Weiffenbach's work in October at APL. As far as I know, there are no written records, not even laboratory notes, that support the assertion that Guier's and Weiffenbach's work was unofficial and an indulgence of curiosity.Chapter seven: Pursuit of OrbitThe main sources of information for this chapter are Bill Guier and George Weiffenbach.The problems in putting this chapter together were that there are no primary written sources that directly confirm what Guier and Weiffenbach did and when, and they have both told the story several times, including on tape in a 1992 APL video. Thus it took some time to recall memories.The only way around this seemed to me to go over and over the same ground from as many different angles as possible. And both Guier and Weiffenbach seemed to take to this approach as the proverbial duck takes to water. Each time I gleaned another fact, no matter how small, from one of their colleagues or from a published paper, I went back to one or another of them to ask more detailed questions or the same questions in a different guise. As I learned a little more about the physics for myself, I also went back to them.The result is chapter seven, which is corroborated as much as possible by memories £from other people.
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Page text content checked against original in print by HG on 2nd May, 2013.xx month year.