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astrolabe
[ as-truh-leyb ]
noun
- an astronomical instrument for taking the altitude of the sun or stars and for the solution of other problems in astronomy and navigation: used by Greek astronomers from about 200 b.c. and by Arab astronomers from the Middle Ages until superseded by the sextant.
astrolabe
/ 藞忙蝉迟谤蓹藢濒别瑟产 /
noun
- an instrument used by early astronomers to measure the altitude of stars and planets and also as a navigational aid. It consists of a graduated circular disc with a movable sighting device Compare sextant
astrolabe
- An ancient instrument used widely in medieval times by navigators and astronomers to determine latitude, longitude, and time of day. The device employed a disk with 360 degrees marked on its circumference. Users took readings from an indicator that pivoted around the center of the suspended device like the hand of a clock. The astrolabe was replaced by the sextant in the 18th century.
Other 亚洲网紅露点 Forms
- 补蝉路迟谤辞路濒补产路颈路肠补濒 [as-tr, uh, -, lab, -i-k, uh, l, -, ley, -bi-], adjective
亚洲网紅露点 History and Origins
Origin of astrolabe1
亚洲网紅露点 History and Origins
Origin of astrolabe1
Example Sentences
The show begins with an extensive selection of luxury astrolabes, a technical instrument of engraved and ornamented metal plates and dials used for timekeeping, astronomy and navigation.
Dr. Sharvit speculated that, lacking compasses, astrolabes or sextants, seafarers in the 14th century B.C. probably relied on celestial navigation, taking sightings and angles of the sun and star positions.
For 2,000 years, celestial observers mapped the heavens with astonishingly precise instruments called astrolabes.
鈥淐hildren can hold an astrolabe and maneuver and point at a star, and a constellation will appear,鈥 said Shaika Nasser al Nassr, deputy director of curatorial affairs for the museum.
One was an old bronze navigation device, like an astrolabe from a ship.
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