DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY
Mechanical analog stopwatches artwork. A stopwatch is a handheld timepiece designed to measure the amount of time elapsed from a particular time when it is activated to the time when the piece is deactivated. This stopwatch comprises two dials: the outer dial measures time in seconds, the inner dial in minutes. Synchronising watches and stop watches enables precise coordination between users at different locations.
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