jm + geolocation   3

Cellphones Track Your Every Move, and You May Not Even Know - NYTimes.com
data retention in Germany revealed via FOI: 'in a six-month period — from Aug 31, 2009, to Feb. 28, 2010, Deutsche Telekom had recorded and saved his longitude and latitude coordinates more than 35,000 times. It traced him from a train on the way to Erlangen at the start through to that last night, when he was home in Berlin.'
data-retention  germany  phones  mobile  geolocation  tracking  mobile-phones  surveillance  from delicious
march 2011 by jm
The Reverse Geocache Puzzle Box
this is fantastic -- a (physical) puzzle, which must be brought to a specific location on the planet to be opened
geocaching  cool  electronics  geolocation  gps  hardware  puzzles  arduino  from delicious
september 2010 by jm
How Google/Firefox Geolocation API works
I didn't realise Firefox's geolocation used wifi triangulation, too
wifi  google  linux  firefox  mapping  geolocation  triangulation  from delicious
december 2009 by jm

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