FOR THE discerning timekeeper, only an atomic clock will do. Whereas the best quartz timepieces will lose a millisecond every ...

Nuclear clocks could be more accurate than atomic clocks by a factor of about 10, potentially leading to improved GPS ...

The most precise clocks in the world will lose only one second every 300 billion years—and someday they might fit in your ...

Physicists have made a breakthrough in the development of a nuclear clock, a new kind of ultraprecise clock that could ...

From the humble wristwatch to the atomic clock, innovations that came out of global conflicts transformed our relationship ...

Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST’s Colorado , the clock will automatically set to the correct time. Automatically adjusts to Daylight ...

Time does not tick at the same rate everywhere ... are accurate to within less than a second a day. A good cesium atomic clock may shift by a second over 100 million years. Since 1967, the ...

HIROSHIMA--Passed down from his grandfather, a U.S.-made wooden clock that hangs on a living room wall at Eiji Koizumi’s home here has stood the test of time and an atomic bomb blast. The ...

Coordinated Lunar Time will help with precise space-travel calculations. But first, NASA has to figure out how to make it ...