By focusing on a specific episode of 20th Century physics — the discovery of parity violation in 1957 — the paper presents a study of the types of explanations of the crucial experiment as they are found in different editorial categories: a peer-review journal, a popular science book, an encyclopedia and a newspaper articles. The study provides a fine-grained description of the mechanism of the explanation as elaborated in non-specialist accounts of the experiment and identifies original, key-explanatory elements which characterize them. In so doing, the paper presents a reflection on the processes of transformation and adaptation implied by the circulation of knowledge — which features as a productive process in its own right — and shows which further insights a focus on explanation can offer to the current historical researches on science communication.

The history of public communication of science in Spain is yet to be written. Few academic studies exist that have tackled this subject. The political and economic history of the country have marked out the evolution of this discipline, which burst into the country at the end of the 20th century with the proliferation of initiatives such as the creation of science museums, the building of the Spanish Science Foundation and the development of a public Scientific Information service. Despite these efforts, the level of scientific culture for Spanish people is one of the lowest in Europe [OECD, 2016].

Science communication is today a well-established ―although young― area of research. However, there are only a few books and papers analyzing how science communication has developed historically. Aiming to, in some way, contribute to filling this gap, JCOM organized this special issue on the History of Public Communication of Science and Technology (PCST), joining 15 contributions, from different parts of the globe. The papers published in this issue are organized in three groups, though with diffuse boundaries: geography, media, and discipline. The first group contains works that deal descriptively and critically with the development of PCST actions and either general or specific public policies for this area in specific countries. A second set of papers examines aspects of building science communication on TV or in print media. The third group of papers presents and discusses important PCST cases in specific areas of science or technology at various historical moments.

This study compares Australian government vaccination campaigns from two very different time periods, the early nineteenth century (1803–24) and the early twenty-first (2016). It explores the modes of rhetoric and frames that government officials used in each period to encourage parents to vaccinate their children. The analysis shows that modern campaigns rely primarily on scientific fact, whereas 200 years ago personal stories and emotional appeals were more common. We argue that a return to the old ways may be needed to address vaccine hesitancy around the world.

Between the 1950s and the 1980s the British nuclear industry engaged with ordinary people in a wide range of ways. These included articles in the print media, exhibitions and educational resources as well as through open days, developing nature reserves and building relations with the local communities around nuclear sites. This paper draws on recently collected oral history interviews and archival material to consider what was one of the largest and best resourced efforts to communicate science to the British public between the 1950s and the 1980s.

This contribution concerns the role of the Victorian newspaper correspondence column in advancing knowledge of dermatology in relation to corporal punishment. It explores The Times' coverage of an inquest into the death by flogging of a British soldier. I argue that on the one hand, The Times participated in the debate about flogging in the army by bringing forward skin anatomy as an argument against corporal punishment. On the other hand, the paper might have used the publication of letters with medical content as a marketing strategy to maintain its authority and credibility against accusations of sensationalism.

During the course of several decades, several scientists and groups of scientists lobbied the British Broadcasting Corporation (BBC) about science broadcasting. A consistent theme of the interventions was that science broadcasting should be given exceptional treatment both in its content, which was to have a strongly didactic element, and in its managerial arrangements within the BBC. This privileging of science would have amounted to ‘scientific exceptionalism’. The article looks at the nature of this exceptionalism and broadcasters' responses to it.

As a case study, we analyze an article of the psychiatrist Henrique Roxo published in 1942 in two publications directed to different publics. The communication of science was intended as part of Brazil's modernizing project of the epoch. Roxo's case reveals that the language used by science communicators, although sometimes of difficult apprehension, was part of an strategy of acknowledgment of the medical authority for the diagnosis and treatment of the mental illnesses.

The history of science communication in Aotearoa New Zealand starts with the stories told by the indigenous Māori people and has often been rooted in large, controversial environmental or technological issues. Although science communication in New Zealand began with a culture of wise men informing an uneducated public, by the 1990s it had begun to explore ideas of public outreach and engagement. Driven in part by the country's landscape and unique wildlife, media such as film documentary have risen to take centre stage in public engagement with science. Public radio also features in discussion of scientific issues. New centres for the training of science communicators have emerged and there is governmental and public support for science communication in New Zealand, as demonstrated by the number of awards and funding opportunities offered annually, for those who achieve. However a more critical and strategic approach to science communication in the future is needed if New Zealand wants a more science-literate public, and a more public-literate science community.

The research field of science communication is fairly neglected in South Africa. The university system in South Africa, with a few exceptions, pays scant attention to the teaching of science communication, leading to limited academic knowledge of this research field with its rich history and philosophical relations. This paper explores some of the reasons behind this neglect of science communication in South Africa and will argue and demonstrate that, primarily, two political systems can be identified as having had a profound impact on the lesser attention given to this research field; the ‘divide and rule’ system of British colonialism and the Afrikaner National Party ‘apartheid’ system of racial segregation.