editor's blog
Subscribe Now

Four weeks of argument over a second

Today (November 2nd) the International Telecommunication Union’s World Radiocommunication Conference meets in Geneva. It will run until the 27th and, apparently, during much of that time, there will be bitter arguments about the leap second. As we discussed in Just a Second https://www.eejournal.com/archives/articles/20150924-justasecond/ a few weeks ago, now that we measure the second using atomic frequencies, it is clear that the earth doesn’t rotate evenly, so, at relatively unpredictable times, a leap second is declared. This requires the administrators of a range of systems to tell the system to add the extra second. The first time a leap second was declared, there were serious problems. Supporters of the leap second claim that the problem is well understood and manageable, but opponents argue that now we don’t rely on the sun and stars for navigation, and use artificial satellites and the internet to share time signals, there is no need to take any risks. The arguments are summarised in IEEE Spectrum.  http://spectrum.ieee.org/tech-talk/computing/networks/leap-second-heads-into-fierce-debate

Leave a Reply

featured blogs
Jan 15, 2019
Since Samtec began in 1976, free connector samples have been a cornerstone of our business model. That said, we’re always looking for ways to continue to improve how we get samples into your hands. Recently we rolled out a simplified way to place sample requests on the ...
Nov 14, 2018
  People of a certain age, who mindfully lived through the early microcomputer revolution during the first half of the 1970s, know about Bill Godbout. He was that guy who sent out crudely photocopied parts catalogs for all kinds of electronic components, sold from a Quon...