While I understand how FlightRadar works, with just my GPS coordinates how does the app correctly identify the plane that I'm pointing to? Basically, how does it get the direction I'm pointing towards to narrow down the list of planes that are flying within K miles of a given lat, long coordinate?
[0] - http://www.flightradar24.com/
[1] - http://youtu.be/IqFx77WeYL8?t=4m27s