To better understand the circadian clock in modern-day cyanobacteria, a Japanese research team has studied ancient ...

Leap seconds are added occasionally to help keep the atomic clock synced up with the earth's rotation. "The earth's spin isn't uniform, it's not constant," Nick Stamatakos, the chief of earth ...

To better understand the circadian clock in modern-day cyanobacteria, a research team has studied ancient timekeeping systems. They examined the oscillation of the clock proteins KaiA, KaiB, and KaiC ...

Donald E. Moore III Clock dials and clock-hand rotation were standardized in Western Europe by the end of the 17th century, but “clockwise” (rotating to the right) and “counterclockwise ...