It would take 15 billion years for the clock that occupies Jun Ye’s basement lab at the University of Colorado to lose a second. This undated handout photo obtained September 8, 2021 shows ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This unit is all that remains of a ...

Nuclear clocks are the next big thing in ultra-precise timekeeping. Recent publications in the journal Nature propose a new method and new technology to build the clocks. Timekeeping has become more ...

A greatly simplified block diagram of an atomic frequency standard (also called an atomic clock) is shown in Figure 2.1. This consists of an atomic resonator, a local oscillator, and additional ...

From freeze-dried strawberries to memory foam and scratch-resistant glasses, space exploration is the force behind a myriad of life-changing innovations. Now it’s time for a terrestrial innovation to ...

As a species, we are obsessed about time. Our technological exploits rely on an increasingly exact knowledge of time. For example, some communications systems require frequency uncertainty 10-11 ...

The temperature dependent characteristics of quartz crystals prevent time keeping also with state-of-the-art real time clocks from being highly accurate over a wide temperature range, unless ...