Lost Knowledge: The Concept of Vanished Technologies and Other Human Histories examines the idea of lost knowledge, reaching back to a period between myth and history. It investigates a peculiar idea found in a number of early texts: that there were civilizations with knowledge of sophisticated technologies, and that this knowledge was obscured or destroyed over time along with the civilization that had created it. This book presents critical studies of a series of early Chinese, South Asian, and other texts that look at the idea of specific “lost” technologies, such as mechanical flight...