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Memoirs of the Royal Astronomical Society Volume 8 by Royal Astronomical Society - Paperback
105.00 درهم

Memoirs of the Royal Astronomical Society Volume 8 by Royal Astronomical Society - Paperback

كن أول من يقيِّم هذا المنتج 

105.00 درهم 

  - ستوفر -105.00 درهم
الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781130225938
الفئات
تاريخ
الكاتب
Royal Astronomical Society
الناشر
Rarebooksclub.com
الوصف:

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1835 Excerpt: ...which is denoted by the term exiit ex aperturd. Royal Astron. Soc. Vol. VIII. A A the discordancies are so great, not only here but in other parts of the volumes, as to lead to a ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال السبت ١٢ مايو - الأحد ١٣ مايو الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (87% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781130225938
    الفئات
    تاريخ
    اللغات
    الانجليزية
    الرقم المميز للسلعة
    2724353170910
    المؤلفين
    الكاتب
    Royal Astronomical Society
    رقم ال ISBN
    9781130225938
    الفئات
    تاريخ
    اللغات
    الانجليزية
    الرقم المميز للسلعة
    2724353170910
    المؤلفين
    الكاتب
    Royal Astronomical Society
    المؤلفين
    الناشر
    Rarebooksclub.com
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1835 Excerpt: ...which is denoted by the term exiit ex aperturd. Royal Astron. Soc. Vol. VIII. A A the

    This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1835 Excerpt: ...which is denoted by the term exiit ex aperturd. Royal Astron. Soc. Vol. VIII. A A the discordancies are so great, not only here but in other parts of the volumes, as to lead to a suspicion that different instruments have been used in these different observations. Again, on December 20, 1721, we find the transit of Mercury recorded by its approach ad diagonium primum, its transit over the centre wire, and its approach ad diagonium secundum: and here the intervals are much smaller than in either of the preceding cases. In other places, mention is made of a triangular micrometer placed in the focus of the telescope: thus on January 15, 1722, we find the transit of Mars thus recorded, viz. h m s 6 24 48 $ intrat triangulura. 6 25 38 $ transiit. 6 26 28 $ exiit triangulo. Probably the sides of this triangle were made of plates of metal, instead of wires: for we find the transit of o Sagittarii on April 30, 1724, thus recorded, viz. Perhaps the parallel wires, as well as the triangular plates, were inserted in the same micrometer; for we find them both mentioned in the same observation. Thus, on August 19,1726, we have the observation of (3 Auriga recorded as follows; viz. h m s 17 41 5 Humerus Aurigse /3 exiit ad filum. 17 41 25 exiit ab altera parte laminae. 17 42 57 exiit ex apertura. Be this however as it may, it is evident that more than one instrument has been used in making the observations: and, although this is sometimes stated in the MS. volumes, yet, as it frequently occurs without such indication, great caution is necessary in attempting to deduce any accurate results from the recorded observations. In the Phil. Trans., Vol. 31, page 113, Dr. Halley alludes to his practice of using cross hairs placed in the focus of the telescope at half right angles,

    خصائص المنتج:
    • الفئات: تاريخ
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Royal Astronomical Society
    • الناشر: Rarebooksclub.com
    • رقم ال ISBN: 9781130225938
    • عدد الصفحات: 72
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.15 inches
 

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