New Atomic Clock Redefines Time

by Moin Uddin Ahmed Tipu

We all know atomic clocks keep the most accurate time of any clock out there– but our idea of time is about to get a whole lot more precise. It’s called an optical lattice clock, and trust us, it’s gonna rock your world!

Read More:
Precise atomic clock may redefine time

“The international definition of a second of time could be heading for a change, thanks to researchers who have demonstrated that an advanced type of ‘atomic clock’ has the degree of precision and stability needed to provide a new standard.”

Experimental realization of an optical second with strontium lattice clocks

“Progress in realizing the SI second had multiple technological impacts and enabled further constraint of theoretical models in fundamental physics.”

Strontium optical clock

“Atomic fountains using cold cesium atoms, currently defining the second from a microwave atomic transition, will soon reach their ultimate accuracy.”

The Importance of the Atomic Clock

“Most people have vaguely heard of the atomic clock and presume they know what one is but very few people know just how important atomic clocks are for the running of our day to day lives in the twenty first century.”

NOVA: The Amazing Atomic Clock

Physics with Atomic Clocks: Beyond What Time Is It?

Atomic Clock Applications – Dr. David Wineland

Atomic Clocks and the 2012 Physics Nobel Prize

“The Nobel Prize in Physics this year was awarded to Serge Haroche and David Wineland for their ground breaking work on the manipulation and measurement of single quantum particles. Wineland’s major contribution has been the development of atomic clocks using a single trapped and laser cooled ion.”

Relative calibration of the GPS time link between CERN and LNGS

Space Segment

“The GPS space segment consists of a constellation of satellites transmitting radio signals to users. The Air Force manages the constellation to ensure the availability of at least 24 GPS satellites, 95% of the time.”

Holding antimatter is exciting step for physics

“On June 7, the Daily Cal reported on the demonstrated trapping of long-lived antihydrogen atoms by the Antihydrogen Laser Physics Apparatus collaboration, which includes members of the Fajans and Wurtele research groups in the UC Physics department.”

The Search for Antimatter

“The big bang should have created equal amounts of matter and antimatter. So why is there far more matter than antimatter in the universe?”

Matter vs. antimatter: particle accelerator experiment says matter wins

“The seemingly inescapable fact that matter and antimatter particles destroy each other on contact has long puzzled physicists wondering how life, the universe or anything else can exist at all. But new results from a particle accelerator experiment suggest that matter does seem to win in the end.”

What is an atomic clock and how does it work?

“If you have read How GPS Receivers Work, you know that atomic clocks are extremely important to the system.”

Watch More:
How To Slow Down Time

Is Time Travel Possible?

Placebo Surgeries:


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Niaaal August 2, 2013 - 8:09 AM

I guess that would happen when we would get a better understanding of the laws quantum mechanics.

seth webber August 2, 2013 - 9:35 AM

Did he just talk about a neutron orbiting something?

seth webber August 2, 2013 - 9:41 AM

Since a neutron has no charge, it has no orbit. You aren't making sense. Without a charge, you can not have the thing orbiting something either. A particle with no charge either travels to the end of the universe or interacts with other particles, but it definitely does not "orbit" anything. 6th grade science is hard, guise….

GMRCG August 2, 2013 - 10:17 PM


0HZ0NE August 4, 2013 - 11:12 AM

Isn't time relative?

PrograError August 4, 2013 - 11:52 AM

Is it just a second late or it's just atom?

Ivin3690 August 6, 2013 - 9:22 AM

well i dont get how any of that works, might as well be technobabble to noobs like me. But it sounds amazing if u ask me

Ivin3690 August 6, 2013 - 9:23 AM


jajawockeez August 6, 2013 - 9:15 PM

lol cosmically out of sync!

LazarusRox August 8, 2013 - 5:51 PM

I honestly do not care.

Un Om August 11, 2013 - 6:39 PM

I have my own time.

Take that, Science!

GeneralSnuggles August 14, 2013 - 10:12 PM

so what is the time

HarHar HarHar August 16, 2013 - 1:18 AM

I have no idea what you guys are talking about, but I'm satisfied.

MrPolymath0 August 20, 2013 - 1:25 AM

Orbit of a neutron? dont u mean electron?

Carousel Blind. August 20, 2013 - 10:04 PM

lol pic

fullyawakened August 26, 2013 - 8:12 PM

The uncertainty principle isn't even a consideration when calculating electron spin and orbits. I think there are different ways of calculating the orbits but the one I was taught in Chem was done with "simple" classical Newtonian physics rather than quantum mechanics. The equations are ugly but it doesn't involve anything more complicated than plugging in the numbers for the mass of the electron, the atomic nucleus, the distance that they orbit (called valence or something… I forget), etc.

Cyclonit August 26, 2013 - 8:41 PM

Please explain GPS correctly… The satellites do not pin-point you. They are merely broadcasting the same signal all the time.

statutesofthelord October 5, 2013 - 6:18 PM

These atomic clocks are predicated on belief that the speed of light, and the resulting oscillations in the matter they interact with are constant. Not very scientific, is it?

I think God got it right when he made the sun, moon, and stars to keep time for us.

massageman1979 February 19, 2014 - 3:03 AM

why is it that every microwave I've ever owned why is the clock always slow

Pot King March 9, 2014 - 8:38 AM

If you think getting accurate time is not important, defintely watch this video, it was highly informative!

Klaus Zipfel September 13, 2014 - 5:09 AM

"And in the future, we are going to have ion clocks, clocks that measure the orbit of a single neutron and keep time of an accuracy of 10 billion years" – There is so much wrong with this statement. First of all, I'm working on an optical lattice clock (not with Sr but with Mg). For ion clocks you do not measure "the orbit of a single neutron" (whatever you want to state here), you still measure an optical transition of a tightly trapped oscillator, an ion in this case. Current Ion clocks offer accuracies in the 10^-18 regime (18 decimal places) but suffer from worse instabilities compared to lattice clocks (since they only interrogate one ion compared to lattice clocks with many thousand atoms which decreases the instability – Look up allan-deviation). You also mix up stability and accuracy. 10^-18 in terms of accuracy means you can measure the real physical quantity to 18 decimal places (because you evaluated the systematic effects to this level). But when it comes to how "stable" that decimal digit is, it comes to instability: 10^-18 instability means, how much that 18th decimal digit you measure varries over time. So in fact if your accuracy sucks but you can measure the same value over and over again with more decimal digits than your accuracy, you have a stable but not accurate measurement becase of systematical shifts. So with your staement "goes off by (by a second) every 10 billion years" it is stability, not accuracy.

apeek7 December 17, 2014 - 10:58 AM

You should check your information for accuracy.  There are too many errors in this video to mention…

fgbect February 1, 2015 - 2:24 AM

2:18 Fantastico… soprattutto per il futuro, con l'orologio ionico (agli ioni, non al mare!!) orologio in grado di misurare l'orbita di un singolo neutrone ed è così accurato da restare preciso per 10 miliardi di anni…. già non bisognerà aggiustarlo mai più poiché potrà andare avanti accuratamente per un paio di miliardi di anni dopo la morte della nostra stella… il sole.
Assolutamente geniale.

rayzimmermin September 14, 2016 - 11:31 PM

the problem with this new atomic clock is the problem with all atomic clocks thy rely on waves be it micro or light waves thy are all effected by gravity and speed the faster the clock moves the further the wave stretches out and the slower the clock ticks this is not time dilation its a defect with the clock

measuring time with light is like measuring a foot with a rubber band it can stretch and contract effecting the measurement and their for you can not trust it

you might say that's all fine and dandy if it was on a space ship but its in a lag on the ground but guess what the ground is a planet the planet is not only spinning but also orbiting the sun the speed the earth rotates and the speed it orbits the sun is not constant sometimes we are moving faster sometimes we are moving slower that would effect this clock meaning it is not accurate at all

HeadlessVulture December 18, 2016 - 4:37 AM

What a fucking waste of time and money. Kids are starving while people spend millions if not billions making clocks no1 cares about..

Chunnel July 6, 2017 - 4:51 AM

nice job!!! thanks for putting your heart into it.

Chunnel July 21, 2017 - 8:11 AM

Imressive, good presentation. thanks!!!

Dwayne Beard January 24, 2018 - 3:09 AM

Cool, Also Check the top wall clock in 2018

Madison Hang January 2, 2020 - 2:45 PM

so how did we even measure what those atomic clocks measure as a second?

Jose Peixoto December 17, 2020 - 8:01 AM

A NEW special atomic clock was created (at MIT?) a few days ago; 0.1 sec in 14 billion years??!! what??

Michel Grenier January 21, 2021 - 9:39 PM

Gravity likely slows down atomic clocks and in space with less or no gravity they speed up ?