SIS - Review 2008- The Celestial Mechanics of "Worlds in Collision" Revisted and subsequent new findings from space (written by Laurence Dixon) (published without permission : )
The Historical Record
The length of the Year - We might expect astronomers who thought the length of the year had changed to keep careful records of the previous values. In AD 150, Ptolemy[3] recorded the following values measured by earlier Greek astronomers:
Meton and Euctemion in 423 BC 365 + 1/4 +1/176 days
Callipus in 340 BC 365 + 1/4 days
Hippaarchus in 160 BC 365 + 1/4 -1/300 days
Ptolemy in AD 150 365 + 1/4 -1/300 days
- which is the value that Pope Gregory's astronomers used in constructing the Gregorian calendar. which we still use, even though Toomer [4] and Ferguson [5] both state that the present value is 365 + 1/4 -1/128 days. Even Copernicus, observing in AD 1515 [6], stated that the year had already had this length during the 633 years between his time and Al Battani's careful measurements, which lattter were, therefore, made in AD 882.
It is interesting to note that in AD 75 Plutarch wrote: "In the reign of Romulus the year was 360 days long [7] and in AD 80 wrote: in an interaction with Hermes the year gained 5 1/4 days and 12 lunar months lost 6 days." [8]
John Wells [9], head of the team investigating the effect of the atomic bomb explosions on coral in the Pacific Ocean, claimed to be able to distinguish both daily and yearly variations in the growth rings of coral. He reported that, in the Devonian Era there had been 400 days in the year, in the Pennsulvanian Era the year had consisted of 387 days and prior to 5000 BP the year had been 360 days long.
It does, therefore, appear that the number of days in the year has changed over the centuries.
SIS - Review 2008- The Celestial Mechanics of "Worlds in Collision" Revisted and subsequent new findings from space (written by Laurence Dixon)
Notes and references1. I. Velikovsky, Worlds in Collision, Macmillan, New York, 1950
2. C. Ptolemy, Almagest (c.150). In Ptolemy: Copernicus; Kepler, Vol. 16 of Great Books of the Western World, Encyclopaedia Britannica Inc. 1938
3. Ibid., p.82
4. G. J. Toomer, Ptolemy and his Greek Predecessors. In C. Walker, Astronomy before the Telescope, British Museum Press, 1996, pp. 68-91
5. K. Ferguson, Measuring the Universe,. Headline Book Co., London, 1999
6. N. Copernicus, On the Revolutions of the Heavenly Spheres. In Ptolemy; Copernicus; Kepler, Vol. 16 of Great Books of the Western World, Encyclopaedia Britannica Inc. 1938, p.647
7. Plutarch, Lives. Life of Numa
8. Plutarch, Lives. Isis and Osiris
9. J. Wells, Coral Growth and Geochronometry. Nature 197 (4871), 1963, pp. 948-50
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