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Clocks and trains, telegraphs and colonial conquest: the challenges of the late nineteenth century were an indispensable real world background to the enormous theoretical breakthrough of relativity. And two giants at the foundations of modern science were converging, step by step on the answer. Albert Einstein, a young, obscure German physicist experimenting with measuring time using telegraph networks and with the coordination of clocks at train stations; and the renowned mathematician Henri Poincare, president of the French Bureau of Longitude, mapping time coordinates across continents. Each found that to understand the newly global world, he had to determine whether there existed a pure time in which simultaneity was absolute or whether time was relative.
The esteemed historian of science Peter Galison has culled new information from rarely seen photographs, forgotten patents, and unexplored archives to tell the fascinating story of two scientists whose concrete, professional preoccupation engaged them in a silent race toward a theory that would conquer the empire of time.
Peter Galison is Mallinckrodt Professor for the History of Science and of Physics at Harvard University. He is a recipient of a MacArthur Foundation fellowship and the Max Planck Prize, as well as the Pfizer Prize for the Best Book in the History of Science for Image and Logic.
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