The FDA detected radiation from cesium-137 in shrimp and cloves from Indonesia and will require an import certificate ...

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 ...

How many times have you shown up to a video meeting with people at work only to find you have terrible internet that day? Maybe the others on the call are cutting in and out, or maybe your own signal ...

Global phase spectroscopy' makes ultraprecise optical timekeepers even more precise Researchers at MIT say they have ...

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.

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.

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.

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 ...