Sextant
The sextant is an instrument that measures angular distance of the sun and stars from the horizon to determine latitude. It is used with a chronometer and nautical charts by navigators of ship...
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Question 1 of 10:Which Renaissance masterpiece did
Leonardo da
Vinci
complete in 1506?The Last Supper
The Mona Lisa
The Madonna LittaThe Proportions of ManQuestion 2 of 10:In 1513, the Italian th...
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The notes of 17th-century researcher Robert Hooke were posted on the Internet on Monday, opening an online window into the man who helped drive Britain's scientific revolution and laying bare his p...
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It's the coldest of cold cases, and yet it keeps warming to life. Seventy years after Amelia Earhart disappeared, clues are still turning up. Long-dismissed notes taken of a shortwave distress call...
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It's the coldest of cold cases, and yet it keeps warming to life. Seventy years after Amelia Earhart disappeared, clues are still turning up. Long-dismissed notes taken of a shortwave distress call...
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As a not-so-newly divorced woman with an eight-and-a-half-year-old daughter, I have lately developed a habit of grilling married couples with the same intensity and awed fascination that I imagine ...
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