In another advance at the far frontiers of timekeeping by National Institute of Standards and Technology researchers, the latest modification of a record-setting strontium atomic clock has achieved precision and stability ...
General Physics
Apr 21, 2015
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87
Most people would feel they can count on one day comprising the same number of hours, minutes and seconds as the next. But this isn't always the case – June 30 will be a second longer in 2015 with the addition of a leap ...
General Physics
Jan 9, 2015
5
54
Timekeeping experts failed Friday to reach a decision on scrapping the four-decade-old practice of adding extra seconds to clocks, a system opponents say causes headaches in a hi-tech, interconnected world.
Earth Sciences
Sep 20, 2013
4
0
Saturday marked the 50th anniversary of the discovery of the quasar - an extremely bright object powered by matter falling into a super-massive black hole lying in the heart of a galaxy.
Astronomy
Mar 17, 2013
3
0
(Phys.org) -- We know that stars group together to form galaxies, galaxies clump to make clusters and clusters gather to create structures known as superclusters. At what scale though, if at all, does this Russian doll-like ...
Astronomy
Aug 21, 2012
8
0
An adjustment of a mere second in the official global clock sent dozens of websites crashing in an incident reminiscent of the Y2K bug over a decade ago.
Internet
Jul 2, 2012
6
0
(PhysOrg.com) -- A proposed new time-keeping system tied to the orbiting of a neutron around an atomic nucleus could have such unprecedented accuracy that it neither gains nor loses 1/20th of a second in 14 billion years ...
General Physics
Mar 8, 2012
11
3
It's high noon for the humble leap second. After ten years of talks, governments are headed for a showdown vote this week on an issue that pits technological precision against nature's whims.
Earth Sciences
Jan 17, 2012
17
2
(PhysOrg.com) -- According to the Times Higher Education World University Rankings, California Institute of Technology, or Caltech, has beaten out Harvard to take the top spot for the first time since they started this ranking ...
Researchers at Carnegie Mellon University's Robotics Institute have leveraged the latest browser technology to create GigaPan Time Machine, a system that enables viewers to explore gigapixel-scale, high-resolution videos ...
Computer Sciences
Apr 21, 2011
1
0
