All scholars agree that Heraclides of Pontus affirmed the daily rotation of the Earth on its own axis. Almost all scholars also agree that he did not affirm the rotation of the Earth around the Sun. Nevertheless, there is a text which has been interpreted as asserting that Heraclides defended Heliocentrism. Geminos says: ?And thus a certain person, Heraclides of Pontus, coming forward, says that even if the Earth moves in a certain way and the Sun is in a certain way at rest, the apparent irregularity with regard to the Sun can be saved?. This text has been used to support that Heraclides held Heliocentrism because the diurnal rotation of the Earth cannot account for the solar anomaly (the apparent irregularity with regard to the Sun). Henc...
This lesson traces the beginning of the heliocentric theory of the solar system, the idea that the s...
A solar activity cycle of about 2400 years has until now been of uncertain origin. Recent results i...
At the beginning of the seventeenth century, Galileo Galilei made certain astronomical discoveries w...
Changing the center of the universe in the study of astronomy can have great consequences. Ptolemy ...
In the 13th century BC Heliocentric concept presented by the Greek philosopher: Aristarchus. But the...
Galileo found the Copernican heliocentric theory of the universe so persuasive owing to its mathemat...
It is well known that heliocentrism was proposed in ancient times, at least by Aristarchus of Samos....
The most widely known solar theory from antiquity is that of Hipparchus. All ancient sources are agr...
In 1973, Noel Swerdlow presented a new and significant reconstruction of how Copernicus arrived at t...
Ancient texts contain statements about the change of the year length in days, requiring adjustments ...
The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as...
viii,75,[1]p.,fold. plates ; 8⁰.With a half-title and an errata slip.Reproduction of original from t...
The heliocentric model has been widely accepted, so it is very difficult to believe that the helioce...
The Copernican question is a thread that runs through Galileo's entire research. This paper analyses...
The reality of the Earth's motion, as proclaimed by Copernicus, quickly proved contentious. Accepted...
This lesson traces the beginning of the heliocentric theory of the solar system, the idea that the s...
A solar activity cycle of about 2400 years has until now been of uncertain origin. Recent results i...
At the beginning of the seventeenth century, Galileo Galilei made certain astronomical discoveries w...
Changing the center of the universe in the study of astronomy can have great consequences. Ptolemy ...
In the 13th century BC Heliocentric concept presented by the Greek philosopher: Aristarchus. But the...
Galileo found the Copernican heliocentric theory of the universe so persuasive owing to its mathemat...
It is well known that heliocentrism was proposed in ancient times, at least by Aristarchus of Samos....
The most widely known solar theory from antiquity is that of Hipparchus. All ancient sources are agr...
In 1973, Noel Swerdlow presented a new and significant reconstruction of how Copernicus arrived at t...
Ancient texts contain statements about the change of the year length in days, requiring adjustments ...
The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as...
viii,75,[1]p.,fold. plates ; 8⁰.With a half-title and an errata slip.Reproduction of original from t...
The heliocentric model has been widely accepted, so it is very difficult to believe that the helioce...
The Copernican question is a thread that runs through Galileo's entire research. This paper analyses...
The reality of the Earth's motion, as proclaimed by Copernicus, quickly proved contentious. Accepted...
This lesson traces the beginning of the heliocentric theory of the solar system, the idea that the s...
A solar activity cycle of about 2400 years has until now been of uncertain origin. Recent results i...
At the beginning of the seventeenth century, Galileo Galilei made certain astronomical discoveries w...