Today in class we learned about GPS's. They are a system that accurately determines the precise position of something on earth. The GPS in the U.S. has three elements....
1.) Satellites placed in predetermined orbits
2.) Tracking stations to monitor and control satellites
3.) Receiver that can locate at least 4 satellites, figure out its distance from earth, and use the information to calculate its precise location.
We also learned that they have turn-by-turn directions in vehicles swell as navigational aid to pilots and ship captains. They also provide location for social media application in a smart phone. We also argued about how knowing our location is a good thing but also a bad thing. If someone hacked our phones or social media they could get our location and rob us. We also talked about how Alexa can hear everything that everyone says and that people could hack that and find out confidential information.
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