<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Bush was aware of a lot of prior work on related ideas in Europe for information technology, including that of <a href="https://en.wikipedia.org/wiki/Paul_Otlet" class="">Paul Otlet</a> and his Mundaneum, the World Brain <a href="https://en.wikipedia.org/wiki/World_Brain" class="">article and later book</a> by H.G. Wells, not to mention the actual microfilm retrieval mechanism built into a desk by <a href="https://en.wikipedia.org/wiki/Emanuel_Goldberg" class="">Emanuel Goldberg</a> at Zeiss-Ikon in the early 1930s (Bush couldn’t patent certain aspects of the Memex because of Goldberg’s prior work). <div class=""><br class=""><div class="">Bush’s really important twist on prior work was to use two microfilm readers in parallel, thus allowing hypertext links between them and the sharing of “trails” made up of such links between users. </div><div class=""><br class=""><div class="">The start of the <a href="https://www.computerhistory.org/revolution/the-web/20/370" class="">Web gallery</a> in our <a href="https://www.computerhistory.org/revolution/topics#exhibition" class="">Revolution</a> exhibition very briefly talks about the work above except for Goldberg.</div><div class=""><br class=""></div><div class="">For books Professor Michael Buckland of UC Berkeley wrote <a href="https://www.amazon.com/Emanuel-Goldberg-His-Knowledge-Machine/dp/0313313326/ref=sr_1_3?crid=1XDL8JJQMPQV7&keywords=michael+buckland&qid=1668573113&sprefix=michael+buckland,aps,167&sr=8-3" class=""><i class="">Emanuel Goldberg and his Knowledge Machine</i></a> about the Memex’s precursor, as well as numerous articles. Paul Kahn of Brown University wrote <a href="https://www.amazon.com/Memex-Hypertext-Vannevar-Minds-Machine/dp/0125232705/ref=sr_1_1?crid=3LG514Y333H3C&keywords=vannevar+bush+paul+kahn&qid=1668572978&sprefix=vannevar+bush+paul+kahn,aps,133&sr=8-1" class=""><i class="">From Memex to Hypertext</i></a>, G. Pascal Zachary wrote an excellent <a href="https://www.amazon.com/Endless-Frontier-Vannevar-Engineer-American-ebook/dp/B077721CMV/ref=sr_1_2?crid=GNW04BN9A1L4&keywords=vannevar+bush&qid=1668572875&sprefix=vannevar+bush,aps,372&sr=8-2" class="">biography of Bush</a> and Bush wrote an <a href="https://www.amazon.com/Pieces-Action-Vannevar-Bush-ebook/dp/B0B15CCH7N/ref=sr_1_1?crid=GNW04BN9A1L4&keywords=vannevar+bush&qid=1668572946&sprefix=vannevar+bush,aps,372&sr=8-1" class="">autobiography</a>. </div><div class=""><br class=""></div><div class="">Best, Marc</div><div class=""><br class=""></div><div class="">p.s. here’s a quote from Wikipedia on Goldberg’s microfilm retrieval machine and the Memex:</div></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><div class=""><div class="">“...At the same Congress Goldberg introduced his "Statistical Machine," a document search engine that used <a href="https://en.wikipedia.org/wiki/Photoelectric" class="mw-redirect" title="Photoelectric">photoelectric</a> cells and <a href="https://en.wikipedia.org/wiki/Pattern_recognition" title="Pattern recognition" class="">pattern recognition</a> to search the <a href="https://en.wikipedia.org/wiki/Metadata" title="Metadata" class="">metadata</a> on rolls of <a href="https://en.wikipedia.org/wiki/Microfilm" class="mw-redirect" title="Microfilm">microfilmed</a> documents (US patent 1,838,389, 29 December 1931). This technology was used in a variant form in 1938 by <a href="https://en.wikipedia.org/wiki/Vannevar_Bush" title="" class="">Vannevar Bush</a> in his "microfilm rapid selector," his "comparator" (for cryptanalysis), and was the technological basis for the imaginary <a href="https://en.wikipedia.org/wiki/Memex" title="Memex" class="">Memex</a> in Bush's influential 1945 essay "As we may think.” </div></div></div></blockquote><div class=""><div class=""><br class=""></div><div class=""><div class=""><blockquote type="cite" class=""><div class="">On Nov 15, 2022, at 18:56, Koblentz, Evan via Members <<a href="mailto:members@lists.sigcis.org" class="">members@lists.sigcis.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Does anyone have documentation, or good theories, about how/where Vannevar Bush was inspired to develop his ideas for the speculative Memex? I know that he was privy to the latest computer developments, but how did he make the jump from plugboards and punch cards to a virtual encyclopedia and hypertext?</div>
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