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Metrology

Time & frequency metrology

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JILA’s Superradiant Laser May One Day Boost Atomic Clocks and ‘Rulers’ for Space

October 14, 2016

BOULDER, Colo. – JILA physicists have demonstrated a novel laser design based on synchronized emissions of light from the same type of atoms used in advanced

NIST and Navy Tests Suggest Telecom Networks Could Back Up GPS Time Signals

September 8, 2016

Precision time signals sent through the Global Positioning System (GPS) synchronize cellphone calls, time-stamp financial transactions, and support safe travel

'Sí' on the New SI: NIST Backs Proposal for a Revamped System of Measurement Units

October 26, 2010

Taking the first steps of what would be a major historical advance in the science of measurement, the National Institute of Standards and Technology (NIST) is

Enjoy New Year's Eve a Second Longer!

December 22, 2005

You can toot your New Year's horn an extra second this year, say physicists at the National Institute of Standards and Technology (NIST). Along with the rest of

Power Doubling For WWVB Could Help Keep You On Time In 1998

January 5, 1998

For everyone who made a New Year's resolution to be more on time for meetings and events in 1998, there's good news from the Commerce Department's National

Another Leap Second is at Hand

May 27, 1997

Though your summer this year may seem all too short, it will actually be the longest one since 1994. There will be exactly one extra second, a little bonus

Wait A Second, Let's Not Leap Into This Until June 30!

May 24, 1994

"I am about to take my last voyage, a great leap in the dark." – Thomas Hobbes, last words "Look ere ye leap." – Proverbs, John Heywood " Nature does not

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