Objects
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Chizhov Nikolai. Cross-functional equatorial sundial, mid 18th c.
Number
МАЭ № 7717-2. МЛ-280
Read moreTitle
Cross-functional equatorial sundial
Read moreDate
mid 18th c.
Read moreAuthor
Chizhov Nikolai
Material
brass
Read moreDimensions
diameter 19.2
Read moreAnnotation
Hour scale III-ХII-IX with 2-minute devision. Latitude scale 10°-90° with 1/2° devisions and numbering in 10. Two-layer compass scale: on the bottom is 4-rhumb wind rose with additional 8-rhum marking, on the projection is 0-90-0-90-(0) grade scale with devisions in 1° and numbering in 10. List of 15 Russian cities with thier latitudes with 1-minute accuracy is on the base, around the compass. Inscription on holder: “d. Nikolai Chizhov in Sanktpeterburg" (made by Nikolai Chizhov in St. Petersburg).
Read moreCorpus
History of Science Monuments. 14th-19th centuries. Mikhail Lomonosov Museum
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