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
November 2, 2015
featured blogs
Apr 25, 2024
Structures in Allegro X layout editors let you create reusable building blocks for your PCBs, saving you time and ensuring consistency. What are Structures? Structures are pre-defined groups of design objects, such as vias, connecting lines (clines), and shapes. You can combi...
Apr 25, 2024
See how the UCIe protocol creates multi-die chips by connecting chiplets from different vendors and nodes, and learn about the role of IP and specifications.The post Want to Mix and Match Dies in a Single Package? UCIe Can Get You There appeared first on Chip Design....
Apr 18, 2024
Are you ready for a revolution in robotic technology (as opposed to a robotic revolution, of course)?...