In the early 20th century, American earth scientists vociferously opposed the new, and highly radical, notion of continental drift. Yet 50 years later the same idea was heralded as a major scientific breakthrough, and today continental drift is accepted as a scientific fact. Why did American geologi[...]

Can anyone today imagine the earth "without" its puzzle-piece construction of plate tectonics? The very term, "plate tectonics," coined only thirty-five years ago, is now part of the vernacular, part of everyone's understanding of the way the earth works.The theory, research, data collection, and an[...]

The Cold War period saw a dramatic expansion of state-funded science and technology research. Government and military patronage shaped Cold War technoscientific practices, imposing methods that were project oriented, team based, and subject to national-security restrictions. These changes affected n[...]