Google used millions of Android phones to map the worst enemy of GPS
In a paper published this week in Nature, Google researchers demonstrated they were able to use GPS signal measurements ...
Hackaday4d
gps hacks
a delightful web app that overlays your GPS location onto georeferenced historical maps. Take Antwerp’s 1565 city map by Virgilius Bononiensis, a massive 120×265 cm woodcut. With Allmaps Here ...