Jonathan Hockey’s Reviews > Einstein's Clocks, Poincaré's Maps: Empires of Time > Status Update
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Jonathan Hockey
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this radical upheaval in the conception of time lay an
extraordinary yet easily stated idea that has remained dead-center in physics, philosophy, and technology ever since: To talk about time, about simultaneity at a distance, you have to synchronize your clocks. And if you want to synchronize two clocks, you have to start with one, flash a signal to the other, and adjust for the time that the flash takes to arrive.
— Sep 05, 2022 09:30AM
extraordinary yet easily stated idea that has remained dead-center in physics, philosophy, and technology ever since: To talk about time, about simultaneity at a distance, you have to synchronize your clocks. And if you want to synchronize two clocks, you have to start with one, flash a signal to the other, and adjust for the time that the flash takes to arrive.

