Re: Need more wood for the fire! Quiz!! -- Fortune Bay Expeditionary Team Campfire

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Subject:

Re: Need more wood for the fire! Quiz!!

Author:
Andy Kursch

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Date Posted: 00:04:16 01/09/04 Fri
In reply to: Chuck Hayden 's message, "Need more wood for the fire! Quiz!!" on 14:02:53 01/08/04 Thu

Ok. I'll do another one...

#2. time

...Ok, I'll explain. GPS recievers know where the satellites should be at any given moment. They use the differences in the time the signals take to get the receiver, based on distance from the satellite to the reciever, to triangulate the positon.

Ancient mariners used time to calculate longitude. They could take a known latitude (based on celestial observation) and cross reference it to the exact time a certain star wuold set to figure out where they were.

ak

>Three questions of the month to be answered by anyone.
>
>1. What does WAAS enabled GPS mean?
>
>2. What common dimension does a GPS and Ancient Sea
>Mariners use to determine location and how? Hint, it
>is not an azimuth or triangulation.
>
>3. Can the United States Government use GPS
>satellites to determine a GPS users location? Why or
>Why not?
>
>The answer will be given in two weeks. Keep checking
>back, new questions will involve prizes and awards.
>
>Please post your answers by replying to this post.

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Replies:

Subject	Author	Date
Re: Need more wood for the fire! Quiz!!	Andy Kursch	00:18:31 01/09/04 Fri