Why Airports Rename Runways When the Magnetic Poles Move Ifeadi C. 04:21 Feed: All Latest, Zero Tech Blog Magnetic north changes by as much as 40 miles per year, and that means signage updates. via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsHTC's new, cheaper blockchain phone will run a full Bitcoin nodeGoogle discloses security bug in its Bluetooth Titan Security Keys, offers free replacementWomen are now in charge of NASA's science missionsBye, blue and coral: Apple reportedly swapping in two new iPhone XR colorsStormtroopers will enforce four-hour time limit at Star Wars: Galaxy’s EdgeCritics praise 'John Wick: Chapter 3' but agree it can't outrun limitations
