Six schemes for encoding the words "United States" via telegraphic messaging. Source: H. Nyquist, “Certain factors affecting telegraph speed,” Bell Syst. Tech. J., Apr. 1924, p. 338.

Bernard Dionysius Geoghegan is a cultural historian of media and technology working at the Humboldt-Universität zu Berlin. He's interested in media as a complex, networked field that interweaves with other fields such as aesthetics, the history of technlogy, and popular culture. His research retraces these networks. Some of the things he's thinking about these days include the history of the concept of information, how technical objects shape vernacular culture, and media-historical approaches to environmental studies. Public outreach and media practice is also a big part of Bernard's work. He's a co-curator for the multi-year Technosphere project at the Haus der Kulturen der Welt, host of the Cultural Technologies podcast, and he's worked on digital video projects at the Pompidou Center's Institute of Research and Innovation and at Spark Media Project. His essays appear in journals including Critical Inquiry, The IEEE Annals on the History of Computing, Theory, Culture & Society, and Interaction Studies. He also guested edited an issue of Communication+1 on media and the occult and co-edited an issue of Sub-Stance on the work of Gilbert Simondon and a forthcoming dossier on the media theorist Friedrich Kittler for Critical Inquiry.​ He may be found online at Twitter, iTunes, or Google+ and reached by email at His CV is available here

Bernard likes to get email. Notice a reference missing from one of his texts? Did you write something he should read? Is there a dead link or a dumb typo on this page somewhere?  Do you have comments on a podcast? If so, he'd be delighted to hear from you.