scholarly journals Evolution of Fighter Aircrafts in the interwar Years: Cluster Analysis in History of Engineering

2021 ◽  
pp. 66-130
Author(s):  
Yury Viktorovich Kuzmin
Keyword(s):  
Cluster Analysis ◽  
New Technologies ◽  
Maximum Speed ◽  
Wing Load ◽  
Complex Approach ◽  
Power Load ◽  
The Us ◽  
Power Loading ◽  
History Of ◽  
History Of Engineering

The article carries out cluster analysis of piston-engine fighters designed between 1920 and 1944 and takes into account more than 500 modifications of aircrafts that were serially manufactured in 18 countries. The author divides the period understudy into five-year segments and studies designs as far as such parameters as maximum speed, wing load and power load are concerned. Correlations of these variables are considered as well and special attention is paid to the correct distance determination. The article demonstrates dynamics of the main fighter characteristics between the world wars. It was found out that the main factor in the growth of fighter speed in 1920-1944 was the wing load related to modernization of profiles, quality and mechanization of the wing rather than growth of engine power of aircrafts. One can see repeating models of development in each period. These are a “power” approach that used new technologies “straightforwardly”, for instance, by totally increasing power loading, and a complex approach that provided for much better results. The author has revealed the leadership of the British aerodynamic school in 1920-1940 and has numerically demonstrated the change in the focus of the US design school from a "powerful engine - light aircraft" method to a "perfect aerodynamics - long flight range" method. He has shown the place of the Soviet design school as well. It has been found out that the last (during this period) sharp increase of wing load was not performed in the USSR and Japan. This led to rather low speed of fighters in these countries during the Second World War. The author discusses the reasons for this as well.

scholarly journals Evolution of Piston-Engine Fighter Aircrafts: Cluster Analysis to Study the History of Technology. Part 2

2021 ◽  
pp. 24-78
Author(s):  
Yury Viktorovich Kuzmin
Keyword(s):  
Cluster Analysis ◽  
Technological Progress ◽  
Rapid Development ◽  
Weight Ratio ◽  
Maximum Speed ◽  
Piston Engine ◽  
Wing Load ◽  
Time Period ◽  
Power Load ◽  
History Of

The article carries out cluster analysis of serial piston-engine fighters. 672 modifications built in 26 countries from 1913 to 1951 are taken into account. Maximum speed, wing load, power load and weight ratio are chosen as coordinates. Clustering reveals pioneering design: the earliest models in each cluster. One can also measure the dynamics of ideas lifetime that is the period when similar aircrafts (those within one cluster) were manufactured following the same methodology. The frequency new clusters emerged demonstrates the speed of technological progress. The author has found the turning points of development. These are 1930 and 1935. Until 1930 flight characteristics were increasing both due to an increase in thrust-to-weight ratio and an increase of wing load. Later the thrust-to-weight ratio remains practically unchanged. In 1935 the first aircraft appeared from three of the 19 clusters at once. Among them are the little-known Yugoslav fighter Ikarus IK-2 and the Soviet I-16 Type 5. The change of leading countries and the lifetime of ideas have been studied as well. The interval between the manufacture of the first and the last model, related to the cluster, corresponds to the time period when designers followed the same approach when designing an aircraft. Between wars, this interval exceeded 10 years whereas during rapid development periods it was 5-6 years shorter.

The Dilemma between Aligned Expectations and Diversity in Innovation

2018 ◽  
Author(s):  
Timur Ergen
Keyword(s):  
New Technologies ◽  
Historical Case ◽  
History Of Capitalism ◽  
Synthetic Fuel ◽  
The Us ◽  
History Of ◽  
The One ◽  
Technology Policies ◽  
Lock In ◽  
Innovation Processes

This chapter brings together arguments from economics, sociology, and political economy to show that innovation processes are characterized by a dilemma between the advantages of aligned expectations—including greater coordination and investment—and those of diversity, including superior openness to new technological possibilities. To illustrate the argument, the chapter discusses a historical case involving one of the largest coordinated peace-time attempts to hasten technological innovation in the history of capitalism, namely the US energy technology policies of the 1970s and 1980s. Close examination of the commercialization of photovoltaics and synthetic fuel initiatives illustrates both sides of the dilemma between shared versus diverse expectations in innovation: coordination but possible premature lock-in on the one hand, and openness but possible stagnation on the other. The chapter shows that even the exploration and interpretation of new technologies may be as much a product of focused investment as of trial-and-error search.

Migration and Modernities

2019 ◽  
Keyword(s):  
Native Americans ◽  
Literary History ◽  
Historical Study ◽  
Racial Categories ◽  
Geographic Boundaries ◽  
The Us ◽  
Technological Developments ◽  
History Of ◽  
The Aesthetic ◽  
Eighteenth And Nineteenth Centuries

Migration and Modernities recovers a comparative literary history of migration by bringing together scholars from the US and Europe to explore the connections between migrant experiences and the uneven emergence of modernity. The collection initiates transnational, transcultural and interdisciplinary conversations about migration in the eighteenth and nineteenth centuries, demonstrating how mobility unsettles the geographic boundaries, temporal periodization, and racial categories we often use to organize literary and historical study. Migrants are by definition liminal, and many have existed historically in the spaces between nations, regions or ethnicities. In exploring these spaces, Migration and Modernities also investigates the origins of current debates about belonging, rights, and citizenship. Its chapters traverse the globe, revealing the experiences — real or imagined — of eighteenth- and nineteenth-century migrants, from dispossessed Native Americans to soldiers in South America, Turkish refugees to Scottish settlers. They explore the aesthetic and rhetorical frameworks used to represent migrant experiences during a time when imperial expansion and technological developments made the fortunes of some migrants and made exiles out of others. These frameworks continue to influence the narratives we tell ourselves about migration today and were crucial in producing a distinctively modern subjectivity in which mobility and rootlessness have become normative.

From Competition to Cooperation: A History of Canada–US National Park Relations

2019 ◽  
Author(s):  
Terence Young ◽  
Alan MacEachern ◽  
Lary Dilsaver
Keyword(s):  
National Parks ◽  
National Park ◽  
The United States ◽  
The Us ◽  
Park Service ◽  
Settler Societies ◽  
History Of ◽  
Relationship Of ◽  
Flow Of Information ◽  
The Relationship

This essay explores the evolving international relationship of the two national park agencies that in 1968 began to offer joint training classes for protected-area managers from around the world. Within the British settler societies that dominated nineteenth century park-making, the United States’ National Park Service (NPS) and Canada’s National Parks Branch were the most closely linked and most frequently cooperative. Contrary to campfire myths and nationalist narratives, however, the relationship was not a one-way flow of information and motivation from the US to Canada. Indeed, the latter boasted a park bureaucracy before the NPS was established. The relationship of the two nations’ park leaders in the half century leading up to 1968 demonstrates the complexity of defining the influences on park management and its diffusion from one country to another.

Functioning of Ukrainian Bureau in Washington D. C. (March 1939 – May 1940)

2019 ◽  
pp. 142-157
Author(s):  
Danylo Kravets
Keyword(s):  
New York ◽  
The United States ◽  
College Degrees ◽  
The Us ◽  
Us Government ◽  
General Functioning ◽  
History Of ◽  
Governmental Institutions ◽  
History Of Journalism ◽  
The Military

The aim of the Ukrainian Bureau in Washington was propaganda of Ukrainian question among US government and American publicity in general. Functioning of the Bureau is not represented non in Ukrainian neither in foreign historiographies, so that’s why the main goal of presented paper is to investigate its activity. The research is based on personal papers of Ukrainian diaspora representatives (O. Granovskyi, E. Skotzko, E. Onatskyi) and articles from American and Ukrainian newspapers. The second mass immigration of Ukrainians to the US (1914‒1930s) has often been called the «military» immigration and what it lacked in numbers, it made up in quality. Most immigrants were educated, some with college degrees. The founder of the Ukrainian Bureau Eugene Skotzko was born near Western Ukrainian town of Zoloczhiv and immigrated to the United States in late 1920s after graduating from Lviv Polytechnic University. In New York he began to collaborate with OUN member O. Senyk-Hrabivskyi who gave E. Skotzko task to create informational bureau for propaganda of Ukrainian case. On March 23 1939 the Bureau was founded in Washington D. C. E. Skotzko was an editor of its Informational Bulletins. The Bureau biggest problem was lack of financial support. It was the main reason why it stopped functioning in May 1940. During 14 months of functioning Ukrainian Bureau in Washington posted dozens of informational bulletins and send it to hundreds of addressees; E. Skotzko, as a director, personally wrote to American governmental institutions and foreign diplomats informing about Ukrainian problem in Europe. Ukrainian Bureau activity is an inspiring example for those who care for informational policy of modern Ukraine.Keywords: Ukrainian small encyclopedia, Yevhen Onatsky, journalism, worldview, Ukrainian state. Keywords: Ukrainian Bureau in Washington, Eugene Skotzko, public opinion, history of journalism, diaspora.

Epidemics

2018 ◽  
Author(s):  
Samuel K. Cohn, Jr.
Keyword(s):  
Sixteenth Century ◽  
Preventive Measures ◽  
Fifth Century ◽  
The Other ◽  
Fundamental Aspect ◽  
Late Nineteenth Century ◽  
Psychological Consequences ◽  
The Us ◽  
History Of ◽  
Race Ethnicity

This book challenges a dominant hypothesis in the study of epidemics. From an interdisciplinary array of scholars, a consensus has emerged: invariably, epidemics in past times provoked class hatred, blame of the ‘other’, or victimization of the diseases’ victims. It is also claimed that when diseases were mysterious, without cures or preventive measures, they more readily provoked ‘sinister connotations’. The evidence for these assumptions, however, comes from a handful of examples—the Black Death, the Great Pox at the end of the sixteenth century, cholera riots of the 1830s, and AIDS, centred almost exclusively on the US experience. By investigating thousands of descriptions of epidemics, reaching back before the fifth-century BCE Plague of Athens to the eruption of Ebola in 2014, this study traces epidemics’ socio-psychological consequences across time and discovers a radically different picture. First, scholars, especially post-AIDS, have missed a fundamental aspect of the history of epidemics: their remarkable power to unify societies across class, race, ethnicity, and religion, spurring self-sacrifice and compassion. Second, hatred and violence cannot be relegated to a time when diseases were mysterious, before the ‘laboratory revolution’ of the late nineteenth century: in fact, modernity was the great incubator of a disease–hate nexus. Third, even with diseases that have tended to provoke hatred, such as smallpox, poliomyelitis, plague, and cholera, blaming ‘the other’ or victimizing disease bearers has been rare. Instead, the history of epidemics and their socio-psychological consequences has been richer and more varied than scholars and public intellectuals have heretofore allowed.

Consensus by Schooling and Power: The Indoctrination of the Elites

2018 ◽  
Author(s):  
Louçã Francisco ◽  
Ash Michael
Keyword(s):  
Case Studies ◽  
Chicago School ◽  
Ruling Class ◽  
Government Institutions ◽  
The Us ◽  
History Of ◽  
Hearts And Minds

Chapter 7 describes the origins of the Chicago School and its successful projection into the hearts and minds of the global ruling class. Working chronologically, there is a description of how this program took root in Chicago and how some of its central figures, Friedman and Harberger, undertook a hemispheric campaign to capture both academic and government institutions. A history of the deregulation movement in the US and case studies of Mexico, Chile, Argentina, and Brazil highlight the breadth and depth of the campaign. The chapter closes in Europe where the neoliberal insurgency faced more-developed social states. Its success varied in Britain, France, and Germany.

The Great Influenza

2018 ◽  
Author(s):  
Samuel K. Cohn, Jr.
Keyword(s):  
Social Behaviour ◽  
East Coast ◽  
World History ◽  
Collective Violence ◽  
Large Cities ◽  
Surgeon General ◽  
The Us ◽  
History Of Disease ◽  
The World ◽  
History Of

This chapter examines evidence principally from the US that the Great Influenza provoked profiteering by landlords, undertakers, vendors of fruit, pharmacists, and doctors, but shows that such complaints were rare and confined mostly to large cities on the East Coast. It then investigates anti-social advice and repressive decrees on the part of municipalities, backed by advice from the US Surgeon General and prominent physicians attacking ‘spitters, coughers, and sneezers’, which included state and municipal ordinances against kissing and even ‘big talkers’. It then surveys legislation on compulsory and recommended mask wearing. Yet this chapter finds no protest or collective violence against the diseased victims or any other ‘others’ suspected of disseminating the virus. Despite physicians’ and lawmakers’ encouragement of anti-social behaviour, mass volunteerism and abnegation instead unfolded to an extent never before witnessed in the world history of disease.

AI Narratives

2020 ◽  
Keyword(s):  
Artificial Intelligence ◽  
New Technologies ◽  
Ancient Greece ◽  
Historical Overview ◽  
Intelligent Machines ◽  
Narrative History ◽  
History Of ◽  
Imaginative Thinking ◽  
The Relationship ◽  
Insight Into

This book is the first to examine the history of imaginative thinking about intelligent machines. As real artificial intelligence (AI) begins to touch on all aspects of our lives, this long narrative history shapes how the technology is developed, deployed, and regulated. It is therefore a crucial social and ethical issue. Part I of this book provides a historical overview from ancient Greece to the start of modernity. These chapters explore the revealing prehistory of key concerns of contemporary AI discourse, from the nature of mind and creativity to issues of power and rights, from the tension between fascination and ambivalence to investigations into artificial voices and technophobia. Part II focuses on the twentieth and twenty-first centuries in which a greater density of narratives emerged alongside rapid developments in AI technology. These chapters reveal not only how AI narratives have consistently been entangled with the emergence of real robotics and AI, but also how they offer a rich source of insight into how we might live with these revolutionary machines. Through their close textual engagements, these chapters explore the relationship between imaginative narratives and contemporary debates about AI’s social, ethical, and philosophical consequences, including questions of dehumanization, automation, anthropomorphization, cybernetics, cyberpunk, immortality, slavery, and governance. The contributions, from leading humanities and social science scholars, show that narratives about AI offer a crucial epistemic site for exploring contemporary debates about these powerful new technologies.

The Historiography of Environmental History

2018 ◽  
Author(s):  
J. R. McNeill
Keyword(s):  
Climate Change ◽  
Environmental History ◽  
Industrial Pollution ◽  
Full Scale ◽  
Environmental Concerns ◽  
The Us ◽  
The World ◽  
History Of ◽  
The 1960S ◽  
The Relationship

This chapter discusses the emergence of environmental history, which developed in the context of the environmental concerns that began in the 1960s with worries about local industrial pollution, but which has since evolved into a full-scale global crisis of climate change. Environmental history is ‘the history of the relationship between human societies and the rest of nature’. It includes three chief areas of inquiry: the study of material environmental history, political and policy-related environmental history, and a form of environmental history which concerns what humans have thought, believed, written, and more rarely, painted, sculpted, sung, or danced that deals with the relationship between society and nature. Since 1980, environmental history has come to flourish in many corners of the world, and scholars everywhere have found models, approaches, and perspectives rather different from those developed for the US context.

Sign in / Sign up

Export Citation Format

Share Document