Ephemeral devices

This is fascinating! A few GPS devices apparently had a mild(?) path offset issue few days ago: The issue has to do with the ephemeris data file, also called the EPO file (Extended Prediction Orbit) or Connected Predictive Ephemeris (CPE). Or simply the satellite pre-cache file. That’s the file that’s delivered to your device on…


The very concept of diving to depths without any apparatus, Japanese Ama tribe, Spear-Fishing  – Learning about these for the first time today!  Mind boggling! Deep: Freediving and What the Ocean Tells Us about Ourselves