Johns Hopkins Studies in the History of Technology – serie

From the early daguerreotype to the rise of the motion picture, Images and Enterprise explores the business, technical, and social factors that transformed the American photographic industry between 1839 and 1925. Reese Jenkins's prize-winning history traces the technical changes that culminated in George Eastman's creation of the Kodak system of amateur photography in the 1880s. Its compact, simply operated cameras would revolutionize an entire industry-even if at first the whole camera had to be mailed back to the company for developing and reloading. Images and Enterprise also vividly portrays the emergence of cinematography in its relationship to traditional photography and reveals the growing importance of institutionalized research, as Eastman Kodak and the other American and European photographic materials manufacturers strove to develop commercially practical color photography.

Such organizations as AT&T, General Electric, and the U.S. Navy played major roles in radio's evolution, but early press coverage may have decisively steered radio in the direction of mass entertainment. Susan J. Douglas reveals the origins of a corporate media system that today dominates the content and form of American communication.

Perhaps never in history has society been so fascinated with a single machine as when, in early modern Europe, the clock evolved into a major cultural image, widely used in literature, science, and especially Cartesian philosophy. Yet in England, there was greater interest in a different class of technology-the feedback device, such as the safety valve on a steam engine, that could control itself internally;self-regulating systems were hallmarks not only of practical technology but also of the abstract theories of Newton and Adam Smith.Otto Mayr, the director of Germany's leading technological museum, explores the relationship between machinery, technological thought, and culture. Contrasting England and the Continent, particularly in the eighteenth century, he uncovers a stikring pattern of technological metaphors applied to political systems-and lays the foundations of a new intellectual history of technology

To solve their design problems engineers draw in a vast body of knowledge about how things work. This problem-solving knowledge may appear mundane or derivative from science, but in What Engineers Know and How They Know It Walter G. Vincenti shows how sophisticated and "internal" to engineering it really is-and how seemingly simple design requirements can have complex intellectual implications. Examining previously unstudied historical cases, Vincenti shows how engineering knowledge is obtained and, in the book's concluding chapters, presents a model to help explain the growth of such knowledge.

This is the story of the "other" Thomas Edison-not the heroic lone inventor, but Edison the businessman, industrialist, and successful manager of one of the world's largest industrial research laboratories. Tracing his career from his boyhood to his death in 1931, Edison and the Business of Innovation reveals Edison to be an entrepreneur of extraordinary vision. From extensive research in the Edison archives at West Orange, New Jersey, Andre Millard presents new information about Edison the businessman and provides new interpretations of old issues.

This is a biography of a major American inventor, who obtained more than 350 patents during his lifetime. Elmer Sperry contributed greatly to the technological changes occurring between 1880 and 1930. He was best known for the Sperry gyrocompass and automatic pilot, and his inventions included arc-light systems, mining machinery, electric automobiles and streetcars, and electrochemical processes. Characteristic of his various inventions were feedback controls which have made automation a fact of life. The book won the Dexter Prize of the Society for the History of Technology.

From the age of railroads through the building of the first battleships, from the first skyscrapers to the dawning of the age of the automobile, steelmakers proved central to American industry, building, and transportation. In A Nation of Steel Thomas Misa explores the complex interactions between steelmaking and the rise of the industries that have characterized modern America. A Nation of Steel offers a detailed and fascinating look at an industry that has had a profound impact on American life.

Studies of American industry frequently cite Lowell, Massachusetts, as an early model for business practices. Scholars have sought to explain the city's rise to prominence, the impact of its textile mills on workers and on commerce, and its part in regional development and American prosperity. Laurence Gross looks beyond these issues. Focusing on Lowell's Boott Cotton Mills, he examines the industry's struggle to maintain its prominence, the causes of its decline, and its ultimate flight south. Gross puts much of the blame for the pattern of events on the mill-owners themselves. They resisted reinvestment, so their operations became less efficient. They kept antiquated machinery running long after it was safe to do so, and they were slow to respond to issues of worker safety. The increased textile demands of World War II, Gross explains, only forestalled the mills' inevitable demise.

Over the course of several decades, the Pentagon's Information Processing Techniques Office (IPTO) helped transform computing from a cumbersome enterprise based on batch processing to the instantly interactive, graphically rich, highly intelligent computing of today. With the purpose of improving command and control systems for the military, IPTO researchers strengthened time-sharing, laid the groundwork for graphics and parallel processing, contributed to the study of artificial intelligence, and developed the wide-area network that came to be known as the Internet. Transforming Computer Technology examines these and other developments at the Defense Department's Advanced Research Projects Agency in its heyday between 1962 and 1986. The authors show how Pentagon programs affected significant developments in both computer science and engineering. They analyze the management of the office, the origins and growth of important IPTO programs, and the interaction of the staff with the R&D community. They pay special attention to IPTO's role in executing research at the leading edge of computing and networking and in working with the military to transfer that research into practical use.And they show how, by the 1990s, the research results had been assimilated into systems both for the military and for civilian society.

As any American who has traveled abroad knows, the American home contains more, and more elaborate, plumbing than any other in the world. Indeed, Americans are renowned for their obsession with cleanliness. Although plumbing has occupied a central position in American life since the mid-nineteenth century, little scholarly attention has been paid to its history. Now, in All the Modern Conveniences, Maureen Ogle presents a fascinating study that explores the development of household plumbing in nineteenth-century America. Until 1840, indoor plumbing could be found only in mansions and first-class hotels. Then, in the decade before midcentury, Americans representing a wider range of economic circumstances began to install household plumbing with increasing eagerness. Ogle draws on a wide assortment of contemporary sources -- sanitation reports, builders' manuals, fixture catalogues, patent applications, and popular scientific tracts -- to show how the demand for plumbing was prompted more by an emerging middle-class culture of convenience, reform, and domestic life than by fears about poor hygiene and inadequate sanitation.She also examines advancements in water-supply and waste-management technology, the architectural considerations these amenities entailed, and the scientific approach to sanitation that began to emerge by century's end.

Focusing attention on gravity-fed water-flow systems in medieval cities and monasteries, Water Technology in the Middle Ages: Cities, Monasteries, and Waterworks after the Roman Empire challenges the view that hydraulic engineering died with the Romans and remained moribund until the Renaissance. Roberta Magnusson explores the systems' technologies-how they worked, what uses the water served-and also the social rifts that created struggles over access to this basic necessity. Mindful of theoretical questions about what hastens technological change and how society and technology mutually influence one another, the author supplies a thoughtful and instructive study. Archeological, historical, and literary evidence vividly depicts those who designed, constructed, and used medieval water systems and demonstrates a shift from a public-administrative to a private-innovative framework-one that argues for the importance of local initiatives. "The following chapters attempt to chart a course between the Scylla and Charybdis of technological and social determinism.While writing them, I have tried to strike a balance between the technical and human aspects of medieval hydraulic systems, and to remember that beneath the welter of documents and diffusion patterns, configurations and components, ordinances and expenditures, lie the perceptions, the choices, and often the plain hard work of individual men and women." -from the Preface

From the time of Hippocrates until the 1920s, massaging female patients to orgasm was a staple of medical practice among Western physicians in the treatment of "hysteria," an ailment once considered both common and chronic in women. Doctors loathed this time-consuming procedure and for centuries relied on midwives. Later, they substituted the efficiency of mechanical devices, including the electric vibrator, invented in the 1880s. In The Technology of Orgasm, Rachel Maines offers readers a stimulating, surprising, and often humorous account of hysteria and its treatment throughout the ages, focusing on the development, use, and fall into disrepute of the vibrator as a legitimate medical device.

Weapons and Warfare in Renaissance Europe explores the history of gunpowder in Europe from the thirteenth century, when it was first imported from China, to the sixteenth century, as firearms became central to the conduct of war. Bridging the fields of military history and the history of technology -- and challenging past assumptions about Europe's "gunpowder revolution" -- Hall discovers a complex and fascinating story. Military inventors faced a host of challenges, he finds, from Europe's lack of naturally occurring saltpeter -- one of gunpowder's major components -- to the limitations of smooth-bore firearms. Manufacturing cheap, reliable gunpowder proved a difficult feat, as did making firearms that had reasonably predictable performance characteristics. Hall details the efforts of armorers across Europe as they experimented with a variety of gunpowder recipes and gunsmithing techniques, and he examines the integration of new weapons into the existing structure of European warfare.

Laundries were once ubiquitous in British and American cities-products of the same historical process that created steel mills and railroads. Unlike the more familiar examples of industrialization, these cleanliness factories remained powerfully identified with domesticity. In Steam Laundries, Arwen Mohun explores broader issues of how gender has shaped how everyday work gets done, who does the work, and how the work is valued. The British-American comparison further reveals differences owing to culture, regulation, and social structure as well as the unexpected transatlantic character of this seemingly localized business.

Like many apparently simple devices, the vertical water wheel has been around for so long that it is taken for granted. Yet this "picturesque artifact" was for centuries man's primary mechanical source of power and was the foundation upon which mills and other industries developed. Stronger than a Hundred Men explores the development of the vertical water wheel from its invention in ancient times through its eventual demise as a source of power during the Industrial Revolution. Spanning more than 2000 years, Terry Reynolds's account follows the progression of this labor-saving device from Asia to the Middle East, Europe, and America-covering the evolution of the water wheel itself, the development of dams and reservoirs, and the applications of water power.

Today, we associate the relationship between feedback, control, and computing with Norbert Wiener's 1948 formulation of cybernetics. But the theoretical and practical foundations for cybernetics, control engineering, and digital computing were laid earlier, between the two world wars. In Between Human and Machine: Feedback, Control, and Computing before Cybernetics, David A. Mindell shows how the modern sciences of systems emerged from disparate engineering cultures and their convergence during World War II. Mindell examines four different arenas of control systems research in the United States between the world wars: naval fire control, the Sperry Gyroscope Company, the Bell Telephone Laboratories, and Vannevar Bush's laboratory at MIT. Each of these institutional sites had unique technical problems, organizational imperatives, and working environments, and each fostered a distinct engineering culture. Each also developed technologies to represent the world in a machine. At the beginning of World War II, President Roosevelt established the National Defense Research Committee, one division of which was devoted to control systems.Mindell shows how the NDRC brought together representatives from the four pre-war engineering cultures, and how its projects synthesized conceptions of control, communications, and computing. By the time Wiener articulated his vision, these ideas were already suffusing through engineering. They would profoundly influence the digital world. As a new way to conceptualize the history of computing, this book will be of great interest to historians of science, technology, and culture, as well as computer scientists and theorists. Between Human and Machine: Feedback, Control, and Computing before Cybernetics

According to the stereotype, late-nineteenth and early-twentieth-century inventors, quintessential loners and supposed geniuses, worked in splendid isolation and then unveiled their discoveries to a marveling world. Most successful inventors of this era, however, developed their ideas within the framework of industrial organizations that supported them and their experiments. For African American inventors, negotiating these racially stratified professional environments meant not only working on innovative designs but also breaking barriers. In this pathbreaking study, Rayvon Fouche examines the life and work of three African Americans: Granville Woods (1856-1910), an independent inventor; Lewis Latimer (1848-1928), a corporate engineer with General Electric; and Shelby Davidson (1868-1930), who worked in the U.S. Treasury Department. Detailing the difficulties and human frailties that make their achievements all the more impressive, Fouche explains how each man used invention for financial gain, as a claim on entering adversarial environments, and as a means to technical stature in a Jim Crow institutional setting.Describing how Woods, Latimer, and Davidson struggled to balance their complicated racial identities-as both black and white communities perceived them-with their hopes of being judged solely on the content of their inventive work, Fouche provides a nuanced view of African American contributions to-and relationships with-technology during a period of rapid industrialization and mounting national attention to the inequities of a separate-but-equal social order.

"The cotton gin animates the American imagination in unique ways. It evokes no images of antique machinery or fluffy fiber but rather scenes of victimized slaves and battlefield dead. It provokes the suspicion that had Eli Whitney never invented the gin, United States history would have been somehow different. Yet cotton gins existed for centuries before Whitney invented his gin in 1794. Nineteenth-century scholars overlooked them as well as gins made by southern-and northern-mechanics, in order to create a history meant to chasten some southerners and demean others. Using the gin as evidence, they read failure back from the Civil War into the choices that southerners made from the American Revolution, tracing the steps that led them to Appomattox." In Inventing the Cotton Gin, Lakwete explores the history of the cotton gin as an aspect of global history and an artifact of southern industrial development. She examines gin invention and innovation in Asia and Africa from the earliest evidence to the seventeenth century, when British colonizers introduced an Asian hand-cranked roller gin to the Americas.Lakwete shows how indentured British, and later enslaved Africans, built and used foot-powered models to process the cotton they grew for export. After Eli Whitney patented his wire-toothed gin, southern mechanics transformed it into the saw gin, offering stiff competition to northern manufacturers. Far from being a record of southern failure, Lakwete concludes, the cotton gin-correctly understood-supplies evidence that the slave labor-based antebellum South innovated, industrialized, and modernized.

A century and a half before the modern information technology revolution, machinists in the eastern United States created the nation's first high technology industries. In iron foundries and steam-engine works, locomotive works, machine and tool shops, textile-machinery firms, and firearms manufacturers, these resourceful workers pioneered the practice of dispersing technological expertise through communities of practice. In the first book to study this phenomenon since the 1916 classic, English and American Tool Builders, David R. Meyer examines the development of skilled-labor exchange systems, showing how individual metalworking sectors grew and moved outward. He argues that the networked behavior of machinists within and across industries helps explain the rapid transformation of metalworking industries during the antebellum period, building a foundation for the sophisticated, mass production/consumer industries that figured so prominently in the later U.S. economy.

The metal-oxide-semiconductor (MOS) transistor is the fundamental element of digital electronics. The tens of millions of transistors in a typical home-in personal computers, automobiles, appliances, and toys-are almost all derive from MOS transistors. To the Digital Age examines for the first time the history of this remarkable device, which overthrew the previously dominant bipolar transistor and made digital electronics ubiquitous. Combining technological with corporate history, To the Digital Age examines the breakthroughs of individual innovators as well as the research and development power (and problems) of large companies such as IBM, Intel, and Fairchild. Bassett discusses how the MOS transistor was invented but spurned at Bell Labs, and then how, in the early 1960s, spurred on by the possibilities of integrated circuits, RCA, Fairchild, and IBM all launched substantial MOS R & D programs. The development of the MOS transistor involved an industry-wide effort, and Bassett emphasizes how communication among researchers from different firms played a critical role in advancing the new technology.Bassett sheds substantial new light on the development of the integrated circuit, Moore's Law, the success of Silicon Valley start-ups as compared to vertically integrated East Coast firms, the development of the microprocessor, and IBM's multi-billion-dollar losses in the early 1990s. To the Digital Age offers a captivating account of the intricate R & D process behind a technological device that transformed modern society.

Civil War Ironclads supplies the first comprehensive study of one of the most ambitious programs in the history of naval shipbuilding. In constructing its new fleet of ironclads, William H. Roberts explains, the U.S. Navy faced the enormous engineering challenges of a largely experimental technology. In addition, it had to manage a ship acquisition program of unprecedented size and complexity. To meet these challenges, the Navy established a "project office" that was virtually independent of the existing administrative system. The office spearheaded efforts to broaden the naval industrial base and develop a marine fleet of ironclads by granting shipbuilding contracts to inland firms. Under the intense pressure of a wartime economy, it learned to support its high-technology vessels while incorporating the lessons of combat. But neither the broadened industrial base nor the advanced management system survived the return of peace. Cost overruns, delays, and technical blunders discredited the embryonic project office, while capital starvation and never-ending design changes crippled or ruined almost every major builder of ironclads.When Navy contracts evaporated, so did the shipyards. Contrary to widespread belief, Roberts concludes, the ironclad program set Navy shipbuilding back a generation.

Paul Revere's ride to warn the colonial militia of the British march on Lexington and Concord is a legendary contribution to the American Revolution. Midnight Ride, Industrial Dawn reveals another side of this American hero's life, that of a transformational entrepreneur instrumental in the industrial revolution. Robert Martello combines a biographical examination of Revere with a probing study of the new nation's business and technological climate. A silversmith prior to the Revolution and heralded for his patriotism during the war, Revere aspired to higher social status within the fledgling United States. To that end, he shifted away from artisan silversmithing toward larger, more involved manufacturing ventures such as ironworking, bronze casting, and copper sheet rolling. Drawing extensively on the Revere Family Papers, Martello explores Revere's vibrant career successes and failures, social networks, business practices, and the groundbreaking metallurgical technologies he developed and employed.Revere's commercial ventures epitomized what Martello terms proto-industrialization, a transitional state between craft work and mass manufacture that characterizes the broader, fast-changing landscape of the American economy. Martello uses Revere as a lens to view the social, economic, and technological milieu of early America while demonstrating Revere's pivotal role in both the American Revolution and the rise of industrial America. Original and well told, this account argues that the greatest patriotic contribution of America's Midnight Rider was his work in helping the nation develop from a craft to an industrial economy.

Paul Revere's ride to warn the colonial militia of the British march on Lexington and Concord is a legendary contribution to the American Revolution. Midnight Ride, Industrial Dawn reveals another side of this American hero's life, that of a transformational entrepreneur instrumental in the industrial revolution. Robert Martello combines a biographical examination of Revere with a probing study of the new nation's business and technological climate. A silversmith prior to the Revolution and heralded for his patriotism during the war, Revere aspired to higher social status within the fledgling United States. To that end, he shifted away from artisan silversmithing toward larger, more involved manufacturing ventures such as ironworking, bronze casting, and copper sheet rolling. Drawing extensively on the Revere Family Papers, Martello explores Revere's vibrant career successes and failures, social networks, business practices, and the groundbreaking metallurgical technologies he developed and employed.Revere's commercial ventures epitomized what Martello terms proto-industrialization, a transitional state between craft work and mass manufacture that characterizes the broader, fast-changing landscape of the American economy. Martello uses Revere as a lens to view the social, economic, and technological milieu of early America while demonstrating Revere's pivotal role in both the American Revolution and the rise of industrial America. Original and well told, this account argues that the greatest patriotic contribution of America's Midnight Rider was his work in helping the nation develop from a craft to an industrial economy.

Navies have always been technologically sophisticated, from the ancient world's trireme galleys and the Age of Sail's ships-of-the-line to the dreadnoughts of World War I and today's nuclear-powered aircraft carriers and submarines. Yet each large technical innovation has met with resistance and even hostility from those officers who, adhering to a familiar warrior ethos, have grown used to a certain style of fighting. In Technological Change and the United States Navy, William M. McBride examines how the navy dealt with technological change-from the end of the Civil War through the "age of the battleship"-as technology became more complex and the nation assumed a global role. Although steam engines generally made their mark in the maritime world by 1865, for example, and proved useful to the Union riverine navy during the Civil War, a backlash within the service later developed against both steam engines and the engineers who ran them. Early in the twentieth century the large dreadnought battleship at first met similar resistance from some officers, including the famous Alfred Thayer Mahan, and their industrial and political allies.During the first half of the twentieth century the battleship exercised a dominant influence on those who developed the nation's strategies and operational plans-at the same time that advances in submarines and fixed-wing aircraft complicated the picture and undermined the battleship's superiority. In any given period, argues McBride, some technologies initially threaten the navy's image of itself. Professional jealousies and insecurities, ignorance, and hidebound traditions arguably influenced the officer corps on matters of technology as much as concerns about national security, and McBride contends that this dynamic persists today. McBride also demonstrates the interplay between technological innovation and other influences on naval adaptability-international commitments, strategic concepts, government-industrial relations, and the constant influence of domestic politics. Challenging technological determinism, he uncovers the conflicting attitudes toward technology that guided naval policy between the end of the Civil War and the dawning of the nuclear age.The evolution and persistence of the "battleship navy," he argues, offer direct insight into the dominance of the aircraft-carrier paradigm after 1945 and into the twenty-first century.

This wide-ranging, original account of the politics and economics of the giant military supply project in the North reconstructs an important but little-known part of Civil War history. Drawing on new and extensive research in army and business archives, Mark R. Wilson offers a fresh view of the wartime North and the ways in which its economy worked when the Lincoln administration, with unprecedented military effort, moved to suppress the rebellion. This task of equipping and sustaining Union forces fell to career army procurement officers. Largely free from political partisanship or any formal free-market ideology, they created a mixed military economy with a complex contracting system that they pieced together to meet the experience of civil war. Wilson argues that the North owed its victory to these professional military men and their finely tuned relationships with contractors, public officials, and war workers. Wilson also examines the obstacles military bureaucrats faced, many of which illuminated basic problems of modern political economy: the balance between efficiency and equity, the promotion of competition, and the protection of workers' welfare.The struggle over these problems determined the flow of hundreds of millions of dollars; it also redirected American political and economic development by forcing citizens to grapple with difficult questions about the proper relationships among government, business, and labor. Students of the American Civil War will welcome this fresh study of military-industrial production and procurement on the home front-long an obscure topic.

Telegraphy in the nineteenth century approximated the internet in our own day. Historian and electrical engineer David Hochfelder offers readers a comprehensive history of this groundbreaking technology, which employs breaks in an electrical current to send code along miles of wire. The Telegraph in America, 1832-1920 examines the correlation between technological innovation and social change and shows how this transformative relationship helps us to understand and perhaps define modernity. The telegraph revolutionized the spread of information-speeding personal messages, news of public events, and details of stock fluctuations. During the Civil War, telegraphed intelligence and high-level directives gave the Union war effort a critical advantage. Afterward, the telegraph helped build and break fortunes and, along with the railroad, altered the way Americans thought about time and space. With this book, Hochfelder supplies us with an introduction to the early stirrings of the information age.

Naval, aeronautic, and mechanical engineers played a powerful part in the military buildup of Japan in the early and mid-twentieth century. They belonged to a militaristic regime and embraced the importance of their role in it. Takashi Nishiyama examines the impact of war and peace on technological transformation during the twentieth century. He is the first to study the paradoxical and transformative power of Japan's defeat in World War II through the lens of engineering. Nishiyama asks: How did authorities select and prepare young men to be engineers? How did Japan develop curricula adequate to the task (and from whom did the country borrow)? Under what conditions? What did the engineers think of the planes they built to support Kamikaze suicide missions? But his study ultimately concerns the remarkable transition these trained engineers made after total defeat in 1945. How could the engineers of war machines so quickly turn to peaceful construction projects such as designing the equipment necessary to manufacture consumer products? Most important, they developed new high-speed rail services, including the Shinkansen Bullet Train.What does this change tell us not only about Japan at war and then in peacetime but also about the malleability of engineering cultures[unk] Nishiyama aims to counterbalance prevalent Eurocentric/Americentric views in the history of technology. Engineering War and Peace in Modern Japan, 1868-1964 sets the historical experience of one country's technological transformation in a larger international framework by studying sources in six different languages: Chinese, English, French, German, Japanese, and Spanish. The result is a fascinating read for those interested in technology, East Asia, and international studies. Nishiyama's work offers lessons to policymakers interested in how a country can recover successfully after defeat.

Faxed is the first history of the facsimile machine-the most famous recent example of a tool made obsolete by relentless technological innovation. Jonathan Coopersmith recounts the multigenerational, multinational history of the device from its origins to its workplace glory days, in the process revealing how it helped create the accelerated communications, information flow, and vibrant visual culture that characterize our contemporary world. Most people assume that the fax machine originated in the computer and electronics revolution of the late twentieth century, but it was actually invented in 1843. Almost 150 years passed between the fax's invention in England and its widespread adoption in tech-savvy Japan, where it still enjoys a surprising popularity. Over and over again, faxing's promise to deliver messages instantaneously paled before easier, less expensive modes of communication: first telegraphy, then radio and television, and finally digitalization in the form of email, the World Wide Web, and cell phones. By 2010, faxing had largely disappeared, having fallen victim to the same technological and economic processes that had created it.Based on archival research and interviews spanning two centuries and three continents, Coopersmith's book recovers the lost history of a once-ubiquitous technology. Written in accessible language that should appeal to engineers and policymakers as well as historians, Faxed explores themes of technology push and market pull, user-based innovation, and "blackboxing" (the packaging of complex skills and technologies into packages designed for novices) while revealing the inventions inspired by the fax, how the demand for fax machines eventually caught up with their availability, and why subsequent shifts in user preferences rendered them mostly passe.

Since 2000, the National Science Foundation has depended upon its pioneering FastLane e-government system to manage grant applications, peer reviews, and reporting. In this behind-the-scenes account Thomas J. Misa and Jeffrey R. Yost examine how powerful forces of science and computing came together to create this influential grant-management system, assessing its impact on cutting-edge scientific research. Why did the NSF create FastLane, and how did it anticipate the development of web-based e-commerce? What technical challenges did the glitch-prone early system present? Did the switch to electronic grant proposals disadvantage universities with fewer resources? And how did the scientific community help shape FastLane? Foregrounding the experience of computer users, the book draws on hundreds of interviews with scientific researchers, sponsored project administrators, NSF staff, and software designers, developers, and managers.