Greek AstronomyCourier Corporation, 1.01.1991 г. - 192 страници Astronomy as a science began with the Ionian philosophers, with whom Greek philosophy and mathematics also began. While the Egyptians and Babylonians had accomplished much of astronomical worth, it remained for the unrivalled speculative genius of the Greeks, in particular, their mathematical genius, to lay the foundations of the true science of astronomy. In this classic study, a noted scholar discusses in lucid detail the specific advances made by the Greeks, many of whose ideas anticipated the discoveries of modern astronomy. |
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... Months , years , and cycles HIPPARCHUS : Hipparchus ' cycle Discovery of precession of the equinoxes PTOLEMY : The earth does not change its position in any way whatever Arguments against the earth's rotation STRABO : On the zones ...
... B.C. ) and Kidinnu ( flourished 380 , say ) , are worthy to be ranked with Hipparchus and Ptolemy . Herodotus tells us that the Egyptians had a year of 365 days , and that they reckoned twelve months of xiv GREEK ASTRONOMY.
Thomas Little Heath. 365 days , and that they reckoned twelve months of thirty days each , but added five days in each year outside the total of 360 days . They divided the day into twelve hours and the night into twelve hours , so that ...
... months of thirty days each ) , but it was long before they had a regular system for intercalating months ; this was done , when- ever it seemed desirable , on the instructions of some recognized authority . The oldest lunar cycle known ...
... months ; but from 383 B.C. they used the better cycle of nineteen years in- cluding seven intercalary months . According to Diodorus , Meton put forward his nineteen - years period at Athens in the year 433/2 B.C .; this is doubtful ...
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IV | 1 |
V | 3 |
VI | 9 |
VII | 11 |
VIII | 12 |
IX | 13 |
X | 15 |
XI | 17 |
XXXIII | 82 |
XXXV | 91 |
XXXVI | 93 |
XXXVII | 94 |
XXXVIII | 96 |
XL | 100 |
XLI | 105 |
XLII | 109 |
XII | 20 |
XIII | 24 |
XIV | 30 |
XV | 36 |
XVI | 38 |
XVII | 40 |
XVIII | 42 |
XIX | 43 |
XX | 45 |
XXI | 47 |
XXII | 49 |
XXIII | 52 |
XXIV | 54 |
XXV | 55 |
XXVI | 59 |
XXVII | 65 |
XXVIII | 66 |
XXX | 67 |
XXXI | 70 |
XXXII | 73 |
XLIII | 112 |
XLIV | 116 |
XLV | 121 |
XLVI | 123 |
XLVII | 126 |
XLVIII | 131 |
XLIX | 136 |
L | 140 |
LI | 142 |
LIII | 145 |
LIV | 147 |
LV | 149 |
LVI | 152 |
LVII | 162 |
LVIII | 166 |
LX | 181 |
LXI | 183 |