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jan 1, 1995 - google earth/ today's tech/ GPS

Description:

The Global Positioning System (GPS) is a network of about 30 satellites orbiting the Earth at an altitude of 20,000 km. Once it has information on how far away at least three satellites are, your GPS receiver can pinpoint your location using a process called trilateration.

Added to timeline:

hilbert project

Byananeya
21 Nov 2017
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Date:

jan 1, 1995
Now
~ 30 years ago

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