
Where Does The Blue Dot Come From?
The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography
00:00
How Do We Know Where We Are Through Our Phones?
The wipi data base is based on a network of constellations known as 'g p s' These constellations are used to identify where we are through our mobile device. The chip set that's in your phone will be able to receive signals from all of those systems. Each wifi hot spot has a unique identifier, its mack address. It's part of the network infor structure of the internet. We canin map a wifi hot spot to a particular location and then build a wi-fi base for it. So this blue dot is what every comon thinks the blue dot mostly represents. What do you think? Share your thoughts with us at iReport.
Transcript
Play full episode