"Engineering the Revolution "documents the forging of a new relationship between technology and politics in Revolutionary France, and the inauguration of a distinctively modern form of the "technological life." Here, Ken Alder rewrites the history of the eighteenth century as the total history of one particular artifact--the gun--by offering a novel and historical account of how material artifacts emerge as the outcome of political struggle. By expanding the "political" to include conflict over material objects, this volume rethinks the nature of engineering rationality, the origins of mass production, the rise of meritocracy, and our interpretation of the Enlightenment and the French Revolution.

In this fascinating history of the lie detector, Ken Alder exposes some persistent truths about our culture: why we long to know the secret thoughts of our fellow citizens; why we believe in popular science; and why we embrace "truthiness." For centuries people searched in vain for a way to unmask liars, seeking clues in the body's outward signs: in blushing cheeks and shifty eyes. Not until the 1920s did a cop with a PhD team up with an entrepreneurial high school student and claim to have invented a foolproof machine capable of peering directly into the human heart. Scientists repudiated the technique, and judges banned its results from criminal trials, but in a few years their polygraph had transformed police work, seized headlines, and enthralled the nation. In this book, Alder explains why America-and only America-has embraced this mechanical method of reading the human soul. Over the course of the twentieth century, the lie detector became integral to our justice system, employment markets, and national security apparatus, transforming each into a game of bluff and bluster. The lie detector device may not reliably read the human mind, but this lively account shows that the instrument's history offers a unique window into the American soul. Ken Alder is a professor of history and the Milton H. Wilson Professor in the Humanities at Northwestern University. He is the author of The Measure of All Things: The Seven-Year Odyssey and Hidden Error that Transformed the World and Engineering the Revolution.

In June 1792, amidst the chaos of the French Revolution, two intrepid astronomers set out in opposite directions on an extraordinary journey. Starting in Paris, Jean-Baptiste-Joseph Delambre would make his way north to Dunkirk, while Pierre-François-André Méchain voyaged south to Barcelona. Their mission was to measure the world, and their findings would help define the meter as one ten-millionth of the distance between the pole and the equator -- a standard that would be used "for all people, for all time."

The Measure of All Things is the astonishing tale of one of history's greatest scientific adventures. Yet behind the public triumph of the metric system lies a secret error, one that is perpetuated in every subsequent definition of the meter. As acclaimed historian and novelist Ken Alder discovered through his research, there were only two people on the planet who knew the full extent of this error: Delambre and Méchain themselves.

By turns a science history, detective tale, and human drama, The Measure of All Things describes a quest that succeeded as it failed -- and continues to enlighten and inspire to this day.