How did the astrolabe european explorers? a. it was an atlas containing detailed maps of all known lands. b. it was an instrument used to show a ship's speed. c. it allowed sailors to better steer their ships. d. it explorers determine their position at sea.

D is the correct answer.

An astrolabe is a device that can be used to determine approximate latitude using a sailor's position in relation to the north star.

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the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]