al-Munḥarifāt
(ال منحرفات)

İsim	al-Munḥarifāt
İsim Orijinal	ال منحرفات
Basım Yeri	xx -
Tür	Kitap
Dil	Arapça
Dijital	Hayır
Yazma	Evet
Sayfa Sayısı	19
Fiziksel Boyutlar	19 leaves (24 lines), bound : paper ; 24 x 17 cm.
Kütüphane:	Kongre Kütüphanesi
Demirbaş Numarası	2008401692
Kayıt Numarası	15333178
Örnek Metin	This 19th-century manuscript is a treatise on gnomonics, the mathematical discipline concerning the calculation of the projection of shadows for timekeeping purposes. The relatively recent date of the work attests to the great and lasting importance attributed in the Islamic world to the reckoning of time through the observation of shadow lengths. The use of gnomonics and the construction of sundials were perceived as the most religiously correct way to calculate the right times of prayers, since religious texts already define the midday (zuhr) and afternoon ('asr) prayers in terms of shadow lengths. This treatise is devoted to one particular kind of sundial only, the munharifa (literally "inclined") or vertical sundial, but Islamic tradition records a vast number of treatises that also describe the so-called horizontal sundial (known as ruhāma or basīta). The tradition of treatises about sundials began in the ninth century with the set of tables for the production of sundials created by the famous mathematician and astronomer Muḥammad ibn Musá al-Khuwarizmi (active 813-46). The work presented here begins with a general description of the shape and features of vertical sundials, which is followed by tables for the appropriate construction and positioning of sundials. The tables are outlined in black and red ink and can be seen on some of the early folios. In some cases these tables occupy a complete manuscript page. World Digital Library.
Sınıflandırma	QB215 .A99 1800z

Kaynağa git Kongre Kütüphanesi Library of Congress

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Kongre Kütüphanesi

Kaynağa git

al-Munḥarifāt

(ال منحرفات)

Basım Yeri xx -

Tür Kitap

Dil Arapça

Dijital Hayır

Yazma Evet

Sayfa Sayısı 19

Fiziksel Boyutlar 19 leaves (24 lines), bound : paper ; 24 x 17 cm.

Kütüphane Kongre Kütüphanesi

Demirbaş Numarası 2008401692

Kayıt Numarası 15333178

Örnek Metin This 19th-century manuscript is a treatise on gnomonics, the mathematical discipline concerning the calculation of the projection of shadows for timekeeping purposes. The relatively recent date of the work attests to the great and lasting importance attributed in the Islamic world to the reckoning of time through the observation of shadow lengths. The use of gnomonics and the construction of sundials were perceived as the most religiously correct way to calculate the right times of prayers, since religious texts already define the midday (zuhr) and afternoon ('asr) prayers in terms of shadow lengths. This treatise is devoted to one particular kind of sundial only, the munharifa (literally "inclined") or vertical sundial, but Islamic tradition records a vast number of treatises that also describe the so-called horizontal sundial (known as ruhāma or basīta). The tradition of treatises about sundials began in the ninth century with the set of tables for the production of sundials created by the famous mathematician and astronomer Muḥammad ibn Musá al-Khuwarizmi (active 813-46). The work presented here begins with a general description of the shape and features of vertical sundials, which is followed by tables for the appropriate construction and positioning of sundials. The tables are outlined in black and red ink and can be seen on some of the early folios. In some cases these tables occupy a complete manuscript page. World Digital Library.

Sınıflandırma QB215 .A99 1800z