Long before the Texas Instruments LEDcalculator, or even the slide rule, there was another type of computer: the astrolabe. The device took its name, ultimately, from the Greek word astrolabos, or "star-taking."Astrolabeswere used primarily to make astronomical measurements, typically of the al...
The Mayans used astronomy in several ways. They built a calendar from astronomical observations, which was perhaps the most advanced in the world at...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Oral history refers to the history shared and passed down in cultures with an oral tradition. It can also refer to histories told between people that are simply not recorded in official written records. Answer and Explanation: Archaeologists use oral history in several ways. One way they use or...
The outcome of his first experiment was spectacular. It resulted in him working for a Yale University professor in a research and development facility on a mysterious invention at age 13 — a modern version of an astrolabe accurate enough to be used by surveyors. That's not...
The Erie Canal is a canal in the State of New York that connects the Hudson River with Lake Erie, the largest of the Great Lakes. The construction of the Erie Canal began on July 4, 1817, and the canal was first used on May 17, 1821. ...
Update February 27, 2012: Astrolabe formally withdrew its complaint against TZ Database researchers Arthur David Olson and Paul Eggert. “Astrolabe’s lawsuit against Mr. Olson and Mr. Eggert was based on a flawed understanding of the law. We now recognize that historical facts are n...
But there is strong evidence that the astrolabe got its start around the time of Claudius Ptolemy, a famous Greek astronomer who lived in the Roman Empire during the 2nd century AD. Ptolemy left records suggesting he used a three-dimensional instrument similar to the astrolabe to make calculation...
This text was translated into Arabic and used by its scientific community. At the time, the Arab world was known for keen astronomical charting and documentation, and in the centuries after the fall of the Roman Empire, it became the central repository of astronomical and mathematical knowledge....
While historical records and his own poetry have familiarized us with Chaucer as a man of civil affairs, diplomatic confidant to the court, and literary entrepreneur, the Astrolabe discovers Chaucer the parent, one whose desire to ...
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