This is because they are still used for the international definition of units of time – the NIST-F1 cesium fountain clock, for example, is the current US civilian time standard clock.

If the new technology can be incorporated into an atomic clock, it could provide incredibly precise measurements of time. That, in turn, could shed light on some of the most mysterious problems in ...

In humankind's ever-ticking pursuit of perfection, scientists have developed an atomic clock that is more precise and accurate than any clock previously created. The new clock was built by ...

New clock just dropped, but it’ll only drop a second every 30 billion years while in operation. That’s right: It’s the most precise, accurate clock yet built.

The clock design proposed by the researchers is based on quantum many-body systems, where particles behave in coordinated, wave-like patterns. This kind of collective behavior allows for precise ...

Nuclear clocks would be not only more precise but also simpler and more portable, because unlike atomic clocks they wouldn’t require high vacuum conditions, extreme cooling and powerful ...

Many modern atomic clocks use oscillations of strontium atoms rather than cesium to measure time; the most precise of these is accurate to within 1/15,000,000,000 of a second. This means that ...

A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time. Known ...

Chinese scientists have built an ultra-precise clock that they hope will redefine the second Credit: Science Photo Library. This brings humans closer to redefining the second as a basic unit of time.

Why do we need precise time on the moon? That 58.7 microseconds may not sound like much to worry about. An eye blink, for example, takes 0.1 to 0.4 seconds , or 100,000 to 400,000 microseconds.

Researchers have built an atomic clock that is more precise and accurate than any previous clock. For the first time, the clock can detect the effects of gravity predicted by the theory of general ...