THE GRAPHOPHONE AS AN AUXILIARY ASTRONOMICAL INSTRUMENT. A SUGGESTION
نویسندگان
چکیده
منابع مشابه
Shabnumā-wa-Rūznumā A Rare Astronomical Instrument Extant in Two Specimens
In India, there are extant two nineteenth century specimens of an otherwise unknown astronomical instrument called Shabnum?-wa-R?znum? with which observations can be done both in the day and at night. While the R?znum? is nothing but a sine/horary quadrant, the Shabnum? appears to be inspired by the Sanskrit instrument Dhruvabhrama-yantra which was invented by Padman?bha in the first quarter of...
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ژورنال
عنوان ژورنال: Science
سال: 1900
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.11.282.832-b