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 media theorist and historian of technology living in Berlin. In addition to researching and writing on the long history of digital media, Bernard also works on emerging questions in media and environmental studies through as a Wissenschaftlicher Mitarbeiter at Leuphana University and as a co-curator on the multi-year Technosphere project at the Haus der Kulturen der Welt. He is spending the winter semester 2014-2015 as a visiting fellow at the Internationale Kolleg für Kulturtechnik-forschung und Medienphilosophie and the spring 2015 semester as a visiting fellow at the Digital Cultures Research Laboratory in Lüneburg. In 2012 he received a binational Ph.D. (cotutelle) degree from the Fakultät Medien of Bauhaus-Universität Weimar and the Screen Cultures program of Northwestern University. His research interests include digital media, visual culture studies, software studies, and theotechnics. Bernard has held posts and fellowships at the American University of Paris, Harvard University, MIT, the Pompidou Center, Northwestern University, and the Children's 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 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.