Introduction
This chapter proposes the modern nation as a crucial site for elaborating the historical relationship between nature and technology. Nations emerged as both natural and technological objects partly through attempts to link distinctive natural orders (as opposed to natural environments) with technological failures. Focusing on radio disruptions in the Canadian North, the chapter argues that scientists at the Defence Research Telecommunications Establishment (DRTE) used upper atmospheric research to define an essential antagonism between a hostile Northern nature and reliable communications to the region. That case illustrates the important place of specific machines and their behaviors (machinic orders) in defining historical natures, including the hostile natures at the core of Canadian national identity and of the Cold War.