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Jovaini Jovaini
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4 years ago
In addition to the use of improved charts, a system for determining longitude was finally perfected by John Harrison in 1763 by the development of a/an
 
  a. astrolabe.
  b. telescope.
  c. chronometer.
  d. solar time piece.
  e. magnetized compass.
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physicophysico
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4 years ago
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