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Briefly explain how Polynesians used stick charts. English cabinet maker John Harrison won the longitude prize...

Briefly explain how Polynesians used stick charts.

English cabinet maker John Harrison won the longitude prize for making a really good (choose one): (a) clock   (b) sextant (c) map (d) ship

There are 24 GPS satellites. A ship needs data from at least ____ satellites to get its position.

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Answer #1

The Polynesians used the stick charts to navigate during their voyages. They use very basic elements to represents major elements like they have used the palm ribs and these ribs were used to represent swells while shells and corals were used to represents various islands.

English cabinet maker John Harrison won the longitude prize for making a really good clock and hence option “a” is correct.

Minimum 3 satellite data is required to know the position but if we get data from 3 satellites then we don’t get the accurate location and therefore for accurate location we need data from 4 satellites.

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