2005 marks the 50th anniversary of the cesium atomic clock. In 1955, Dr. Louis Essen and Jack Perry developed the first accurate cesium atomic clock at the National ...

Temperature is not something that most people take into account when trying to find out what time it is -- unless your watch has frozen or melted that is. But in the ultra-precise world of atomic ...

In a telecommunications network, every network element with synchronous intermachine links requires proper synchronization to minimize transport errors. A good example of synchronization is a network ...

A new atomic clock will keep data center equipment precisely synchronized for months, if global time services including GPS are unavailable or blocked. The 5071B cesium atomic clock from Microchip ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The 5071A Cesium Primary Frequency ...

The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like ...

Some physicists are creating a revolution in the arcane world of ultra-precise clocks. And among them is a researcher who has trouble getting anywhere on time. "I do tend to be a little bit late," ...

Like watchmakers choosing superior materials to build a fine timepiece, physicists have singled out an atom that could allow us to build better atomic clocks. Like watchmakers choosing superior ...

Normally, when we think of clocks, we think of time -- seconds, minutes, hours. When we think of scales, we think of weight -- ounces, grams, pounds. However, a new clock developed by physicists ...

A clock based on just a single atom — the simplest clock yet — has now been devised, researchers say. This new device to measure time could help lead to a radically new way to define mass as well, ...