Drumsandspace

Links to interesting articles about the limits of navigational technology and the advantages (and limits) of using our innate navigational abilities. http://www.nature.com/news/technology-use-or-lose-our-navigation-skills-1.19632?WT.ec_id=NATURE-20160331&spMailingID=51037895&spUserID=MjA1NzQzNjY1OAS2&spJobID=883880186&spReportId=ODgzODgwMTg2S0 http://www.nytimes.com/2016/03/20/magazine/the-secrets-of-the-wave-pilots.html?_r=0

Thanks! That worked. Much appreciate the help everyone!!

My Garmin eTrex 20 was working fine one morning when I decided to load some caches. I loaded about 10 caches from the Geocaching.com website using my Apple MacBook Air with no error messages. I disconnected the GPSr from the computer after dragging the icon to the trash. After that, I powered on the GPSr to check the battery life and the unit wouldn't power up properly. It hangs with a message saying "loading waypoints, tracks, and routes..." and then shuts down after about 10 seconds. No icon appears on my computer desktop when I connect the USB cable. I tried a hard reboot as recommended by someone on a Garmin forum by holding the menu and joystick button while starting up, but I got the same result. There is no SD card in the eTrex 20. Any suggestions?

Any recent updates on iPhones and/or GPSrs in Cuba? We leave on February 9th and will spend a couple days in Havana and a few more days in Varadero. Any news about this would be appreciated.