Geocentric model work, the "Almagest", was the culmination of centuries of work by Hellenic, Hellenistic and Babylonian astronomers. For over a millennium European and Islamic astronomers assumed it was the correct cosmological model. Because of its influence, people sometimes wrongly think the Ptolemaic system is identical with the geocentric model. Ptolemy argued that the Earth was a sphere in the center of the universe, from the simple observation that half the stars were above the horizon and half were below the horizon at any time (stars on rotating stellar sphere), and the assumption that the stars were all at some modest distance
The Tunnel Thru the Air; Or, Looking Back from 1940 found that in March–April 1924, geocentric Jupiter was at max South declination, and geocentric Uranus in South declination during all of 1924. On July 8, 1927 geocentric Jupiter was at 0 North declination, and on May 1, 1927, geocentric Uranus was at 0 North declination. The declination of both planets was “increasing” during the 1924-1927 bull market. The Tunnel Thru the Air; Or, Looking Back from 1940 The Tunnel Thru the Air, Or, Looking Back from 1940 is a science fiction novel written by market forecaster William Delbert Gann in 1927. In the Foreword, Gann hinted that this book is