The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General Literature, المجلد 20Little, Brown, 1886 |
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الصفحة
... PTOLEMY . Prof. G. JOHNSTON ALLMAN , LL.D. , and E. H. BUNBURY . PUBLIC HEALTH . JAMES WILLIAMS , B.C.L. PUFENDORF . Prof. ERNEST NYS . PULTENEY . W. P. COURTNEY . PUNCHINELLO . R. MORTIMER WHEELER . PUNJAB . Gen. R. MACLAGAN , R. E. ...
... PTOLEMY . Prof. G. JOHNSTON ALLMAN , LL.D. , and E. H. BUNBURY . PUBLIC HEALTH . JAMES WILLIAMS , B.C.L. PUFENDORF . Prof. ERNEST NYS . PULTENEY . W. P. COURTNEY . PUNCHINELLO . R. MORTIMER WHEELER . PUNJAB . Gen. R. MACLAGAN , R. E. ...
الصفحة 87
... Ptolemy devoted his life to astronomy and lived for found in birds . There can be little doubt that the ptero- forty years in the so - called Пrepà тoû Kavúßov , probably dactyles had the power of sustained flight . The large size ...
... Ptolemy devoted his life to astronomy and lived for found in birds . There can be little doubt that the ptero- forty years in the so - called Пrepà тoû Kavúßov , probably dactyles had the power of sustained flight . The large size ...
الصفحة 88
... Ptolemy then gives a geometrical construction for finding the chord of half an arc from the chord of the are itself . By means of the foregoing theorems , since we know the chords of 72 ° and of 60 ° , we can find the chord of 12 ° ; we ...
... Ptolemy then gives a geometrical construction for finding the chord of half an arc from the chord of the are itself . By means of the foregoing theorems , since we know the chords of 72 ° and of 60 ° , we can find the chord of 12 ° ; we ...
الصفحة 89
... Ptolemy proceeds to make deductions from the principles established in the preceding book , which he does by means of the theorem of Menelaus . The length of the longest day being given , he shows how to determine the arcs of the ...
... Ptolemy proceeds to make deductions from the principles established in the preceding book , which he does by means of the theorem of Menelaus . The length of the longest day being given , he shows how to determine the arcs of the ...
الصفحة 90
... Ptolemy , whereas others , of whom Laplace is one , think that it is the work of Ptolemy himself . The probability is that in the main the catalogue is really that of Hipparchus altered to suit Ptolemy's own time , but that in making ...
... Ptolemy , whereas others , of whom Laplace is one , think that it is the work of Ptolemy himself . The probability is that in the main the catalogue is really that of Hipparchus altered to suit Ptolemy's own time , but that in making ...
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