News / Science & Technology

New Atomic Clock Could Be Accurate for 300 Million Years

NIST physicists Steve Jefferts (foreground) and Tom Heavner with the NIST-F2 “cesium fountain” atomic clock, a new civilian time standard for the United States.
NIST physicists Steve Jefferts (foreground) and Tom Heavner with the NIST-F2 “cesium fountain” atomic clock, a new civilian time standard for the United States.

Related Articles

Protein May Help People with Celiac Disease

Newly identified protein called elafin, tames an enzyme that plays a role in inflammation of small bowel caused by eating certain grains

Video NASA Scientists Testing New Aircraft Designs

By 2030, NASA would like to see planes that burn 60 to 70 percent less fuel, pollute less and are quieter

Video Tiny Microbes Are Next Big Thing in Farming

Scientists look to soil resources to help farmers produce more with less
VOA News
U.S. researchers have launched a new atomic clock they say will neither gain nor lose a second in 300 million years.
 
The clock, called NIST-F2, will serve “new U.S. civilian time and frequency standard,” researchers at the U.S. National Institutes of Standards and Technology (NIST) in Colorado said. The current standard has been set by NIST-F1 since 1999.
 
Both clocks use what researchers call a  "fountain" of cesium atoms to come up with a precise measurement of a second.
 
Since 1967, the second has been defined as the duration of 9,192,631,770 oscillations of the microwave radiation absorbed or emitted when a cesium atom jumps between two particular energy states.
 
"If we've learned anything in the last 60 years of building atomic clocks, we've learned that every time we build a better clock, somebody comes up with a use for it that you couldn't have foreseen," says NIST physicist Steven Jefferts, lead designer of NIST-F2 in a statement.
 
Last year, French researchers said they’d also developed a similarly accurate clock.
 
While losing a second every 300 million years might not seem important in daily life, many technologies such as telecommunications, satellite navigation and stock markets depend on incredibly accurate timekeeping.
 
Highly precise timekeeping has been integral to the development of the Global Positioning System (GPS) because of the high degree of synchronization required for satellites to triangulate a receiver’s location.
 
According to NIST, official time “is used to time-stamp hundreds of billions of dollars in U.S. financial transactions each working day.” NIST also said that as of 2014, they had received 8 billion automated requests to synchronize clocks in computers via its Internet Time Service. NIST also broadcasts time updates to around 50 million watches and other clocks.
 
The new super-accurate clock could have implications for theoretical physics in that it could allow physicists to see if nature’s constants do really do remain constant over time. Also, Earth-observation satellites could be improved because they would allow more accurate tracking of sea-level rise.
 
Last year, NIST said it had developed an ion clock that is believed accurate to within one second every 3.7 billion years, but it is not yet considered stable enough to use and requires more testing.

Here's a video about the clock:
 

You May Like

WHO: Anti-Ebola Efforts Should Focus on West Africa

Official says WHO is 'reasonably confident' countries bordering those hardest hit by the Ebola outbreak are not seeing the virus crossing their borders More

South Sudan Crisis Threatens Development

Economic costs and lost development opportunities in South Sudan have erased what little progress the country has made since independence in 2011 More

Ukrainian PM Warns: Russia May Try to Disrupt Sunday Poll

Arseniy Yatsenyuk orders full security mobilization for parliamentary election to prevent ‘terrorist acts’ from being carried out More

This forum has been closed.
Comment Sorting
Comments
     
by: Pat Kelley from: USA
April 07, 2014 10:29 PM
Oh dear. Why do people decry basic science research when it has proven itself time and again? Have we all become enamored of WallStreets investment mentality of short sighted immediate return over long term investment? Basic science research is one of the most cost effective uses of time.


by: Kitagawa Keikoh from: KOBE, JPN
April 04, 2014 8:55 PM
What does it mean for our usually lives?
Developing one second delay for 300 million years means waste of time and money.
Please use your brain and money for more effective thing for human beings.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
After Decades of Pressure, Luxembourg Drops Bank Secrecy Rulesi
X
October 21, 2014 12:20 AM
European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video After Decades of Pressure, Luxembourg Drops Bank Secrecy Rules

European Union finance ministers have reached a breakthrough agreement that will make it more difficult for tax cheats to hide their money. The new legislation, which had been blocked for years by countries with a reputation as tax havens, was approved last week after Luxembourg and Austria agreed to lift their vetoes. But as Mil Arcega reports, it doesn’t mean tax cheats have run out of places to keep their money hidden.
Video

Video Kobani Refugees Welcome, Turkey Criticizes, US Airdrop

Residents of Kobani in northern Syria have welcomed the airdrop of weapons, ammunition and medicine to Kurdish militia who are resisting the seizure of their city by Islamic State militants. The Turkish government, however, has criticized the operation. VOA’s Scott Bobb reports from southeastern Turkey, across the border from Kobani.
Video

Video China Political Meeting Seeks to Improve Rule of Law

China’s communist leaders will host a top level political meeting this week, called the Fourth Plenum, and for the first time in the party’s history, rule of law will be a key item on the agenda. Analysts and Chinese media reports say the meetings could see the approval of long-awaited measures aimed at giving courts more independence and include steps to enhance an already aggressive and high-reaching anti-corruption drive. VOA’s Bill Ide has more from Beijing.
Video

Video US ‘Death Cafes’ Put Focus on the Finale

In contemporary America, death usually is a topic to be avoided. But the growing “death café” movement encourages people to discuss their fears and desires about their final moments. VOA’s Jerome Socolovsky reports.
Video

Video Ebola Orphanage Opens in Sierra Leone

Sierra Leone's first Ebola orphanage has opened in the Kailahun district. Hundreds of children orphaned since the beginning of the Ebola outbreak face stigma and rejection with nobody to care for them. Adam Bailes reports for VOA about a new interim care center that's aimed at helping the growing number of children affected by Ebola.
Video

Video Young Nairobi Tech Innovator on 'Track' in Security Business

A 24-year-old technology innovator in Nairobi has invented a tracking device that monitors and secures cars. He has also come up with what he claims is the most robust audio-visual surveillance system yet. As Lenny Ruvaga reports from the Kenyan capital, his innovations are offering alternative security solutions.
Video

Video Latinas Converting to Islam for Identity, Structure

Latinos are one of the fastest growing groups in the Muslim religion. According to the Pew Research Center, about 6 percent of American Muslims are Latino. And a little more than half of new converts are female. VOA’s Carolyn Presutti travelled to Miami, Florida -- where two out of every three residents is Hispanic -- to learn more.
Video

Video Exclusive: American Joins Kurds' Anti-IS Fight

The United States and other Western nations have expressed alarm about their citizens joining Islamic State forces in Syria and Iraq. In a rare counterpoint to the phenomenon, an American has taken up arms with the militants' Syrian Kurdish opponents. Elizabeth Arrott has more in this exclusive profile by VOA Kurdish reporter Zana Omer in Ras al Ayn, Syria.
Video

Video South Korea Confronts Violence Within Military Ranks

Every able-bodied South Korean male between 18 and 35 must serve for 21 to 36 months in the country’s armed forces, depending upon the specific branch. For many, service is a rite of passage to manhood. But there are growing concerns that bullying and violence come along with the tradition. Reporter Jason Strother has more from Seoul.
Video

Video North Carolina Emerges as Key Election Battleground

U.S. congressional midterm elections will be held on November 4th and most political analysts give Republicans an excellent chance to win a majority in the U.S. Senate, which Democrats now control. So what are the issues driving voters in this congressional election year? VOA National Correspondent Jim Malone traveled to North Carolina, one of the most politically competitive states in the country, to find out.
Video

Video Comanche People Maintain Pride in Their Heritage

The Comanche (Indian nation) once were called the “Lords of the Plains,” with an empire that included half the land area of current day Texas, large parts of Oklahoma, New Mexico, Kansas and Colorado.The fierceness and battle prowess of these warriors on horseback delayed the settlement of most of West Texas for four decades. VOA’s Greg Flakus reports from Lawton, Oklahoma, that while their warrior days are over, the 15,000 members of the Comanche Nation remain a proud people.
Video

Video Turkey Campus Attacks Raise Islamic Radicalization Fears

Concerns are growing in Turkey of Islamic radicalization at some universities, after clashes between supporters of the jihadist group Islamic State (IS) or ISIS, and those opposed to the extremists. Pro-jihadist literature is on sale openly on the streets of Istanbul. Critics accuse the government of turning a blind eye to radicalism at home, while Kurds accuse the president of supporting IS - a charge strongly denied. Henry Ridgwell reports from London.

All About America

AppleAndroid