HOME >> BIOLOGY >> NEWS
Clock tells time at such speed that reading it becomes challenge

DENVER, CO - The newest atomic clock is so accurate that its creators theorize that it will neither lose nor gain a second in 4.5 billion years. And, they note that their clock is so promising, it's being tested for use in navigating Global Positioning System satellites and to time minute biological processes, such as protein folding.

But how do you read the time on such a fast clock?

The scientists who designed the new "all-optical-atomic clock" will describe their efforts to count faster and faster things, as the division between "pulses" becomes smaller and smaller.

Using a femtosecond laser to measure time intervals too tiny to be measured in nanoseconds, Scott A. Diddams, a researcher with the National Institute of Standards and Technology in Boulder, CO, and his colleagues were able to keep time with greater precision than can be done with existing atomic clocks, by five orders of magnitude. At the American Association for the Advancement of Science (AAAS) Annual Meeting, the researchers will discuss improvements in the femtosecond laser technology, and their efforts to make counters for the new optical clocks.

The optical clock was made possible by technological advances in measuring optical frequencies, and in capturing and cooling single ions to very low temperatures. The clock uses non-linear optical fibers to generate optical-frequency "combs," which are used to determine frequencies by counting the number of "teeth" in the comb.

"We know the clock is very stable, so now our research is focused on seeing exactly how accurate it is," Diddams said.

Diddams and his colleagues developed the optical clock based on a single trapped mercury ion, and they promise that their research may someday end the reign of the microwave atomic clocks, which use cesium 133 atoms to determine the time. Cesium atoms resonate exactly 9,192,631,770 times per second, when irradiated by a magnetic microwave field. S
'"/>


14-Feb-2003


Page: 1 2

Related biology news :

1. Clock cells, tumor suicide, tailored therapies among subjects of AACR-NCI-EORTC Conference
2. Clock cues: Cellular sensing, metabolism research wins Amersham Biosciences and Science Prize
3. Scientists Devise Method To Address Conflict Between Molecular Clock, Fossil Record Of Mammalian Evolution
4. Clockwork Clues Determined
5. Researchers Identify New Component Of Circadian Clock
6. Researchers Show Mechanism And Similarities Of Biological Clocks
7. Hopkins Scientists Clock The Speed Of Comprehension
8. Scientists Discover Proteins Which Help Set The Bodys Clock
9. Biological Clocks No Longer Found Only In The Brain
10. Stonehenge study tells pagans and historians its good to talk
11. The Hunters Breath tells a story of adventure and discovery in Antarctica

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: