Peering into Pulse‘s eyepiece, a radar screen reveals itself and a time signal broadcast is audible. Each minute, a voice announcement tells the time of day in Greenwich, England, and there is a “tick” for every second. This broadcast can be received in nearly all parts of the world. Coordinated Universal Time (UTC) is one of the coordinates referenced by the Global Positioning System (GPS).
In Pulse, a heart’s organic contractions frequently appear completely synchronized with the time signal, until both beats drift apart again.