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If there is life on other planets, a laser frequency comb developed at the National Institute of Standards and Technology (NIST) may help find it. Such a comb—a
For huge numbers of people in North America who spend their days in schools, offices, stores, factories and public facilities, the time of their lives comes
By combining advanced laser technologies in a new way, physicists at the National Institute of Standards and Technology (NIST) have generated microwave signals
In a step toward taking the most advanced atomic clocks on the road, physicists at the National Institute of Standards and Technology (NIST) have designed and
A team of physicists from the United States and Russia announced today that it has developed a means for computing, with unprecedented accuracy, a tiny
The sun is now a significant power source for the National Institute of Standards and Technology (NIST) radio station WWVH, which broadcasts time of day, marine
BOULDER, Colo.—In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms
For Web site owners and bloggers, there is a new widget from the National Institute of Standards and Technology (NIST) that will keep your Web pages right on
Researchers from the National Institute of Standards and Technology (NIST) and the German national metrology institute have used NIST's miniature atom-based
Scientists have long known that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that previously has been measured
BOULDER, Colo. – Scientists have known for decades that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that
Physicists at the National Institute of Standards and Technology (NIST) have demonstrated an ion trap with a built-in optical fiber that collects light emitted
Clocks in the Americas and the Caribbean Islands are now ticking in unison thanks to the work of the Sistema Interamericano de Metrologia (SIM), a regional
"How accurate is a radio-controlled clock?" National Institute of Standards and Technology (NIST) researcher Michael Lombardi asks and answers the question in a
Physicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a single
BOULDER, Colo.—Physicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a
The National Institute of Standards and Technology (NIST) will collaborate with the University of Colorado at Boulder (CU) to build and apply a custom laser
The National Institute of Standards and Technology (NIST) has updated its popular guide to radio-controlled clocks. Many millions of radio-controlled clocks
An experimental atomic clock based on ytterbium atoms is about four times more accurate than it was several years ago, giving it a precision comparable to that
Jun Ye, a NIST Fellow working at JILA, a joint institute of NIST and the University of Colorado at Boulder, has received the 2009 European Frequency and Time
Physicist James C. Bergquist, a Fellow at the National Institute of Standards and Technology (NIST) whose research helped usher in the age of optical atomic
BOULDER, Colo.—Physicists have measured and controlled seemingly forbidden collisions between neutral strontium atoms—a class of antisocial atoms known as
The spin of the Earth is slowing down. Not by much; only about 0.002 seconds a day (it varies), relative to our modern definition of the second. The varying
Two physicists at the National Institute of Standards and Technology (NIST) have been named finalists for the 2008 Service to America Medals, presented by the