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 ...

Among the elements, cesium, located in the lower left corner of the periodic table, and fluorine, in the upper right corner, are among the largest electropositive and smallest electronegative elements ...

BOULDER • Every second in a small laboratory room in Boulder, a green light flashes. Within the webs of yellow wire and shelves of computer systems, this green light represents the passage of time.

For the first time, researchers have observed "quantum superchemistry" in the lab. Long theorized but never before seen, quantum superchemistry is a phenomenon in which atoms or molecules in the same ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. The core idea is just an upgrade of the existing definition of time.

Time doesn't come from your phone. It doesn't come from your watch either. It comes from atoms oscillating in a vacuum — billions of times a second — inside a system that never stops checking itself.

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 ...

You might think that a hot object pushes atoms and molecules away due to radiation pressure. But a research team showed that for a polarizable atom, the opposite occurs: the hot object attracts it.

While airplane and rocket experiments have proved that gravity makes clocks tick more slowly – a central prediction of Albert Einstein's general theory of relativity – a new experiment in an atom ...