Pseudoscience/Heliocentricism: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
Line 19:
====390 BC====
[[File:Pythagorasx.gif|thumb|Pythagoras' Model: Wow, let's do some human sacrifices]]
(Greek) The first non-geocentric model of the universe was '''proposed''' by the Pythagorean philosopher Philolaus, who '''taught''' that at the center of the universe was a "central fire", around which the Earth, Sun, Moon and planets revolved in uniform circular motion. This system '''postulated''' the existence of a counter-earth collinear with the Earth and central fire, with the same period of revolution around the central fire as the Earth. The Sun revolved around the central fire once a year, and the stars were stationary. The Earth maintained the same hidden face towards the central fire, rendering both it and the "counter-earth" invisible from Earth. ▼
(Turkey) Heraclides Ponticus (390BC – 310BC) was a Greek philosopher and astronomer who was born in Heraclea Pontica (now Karadeniz Ereğli, Turkey) and migrated to Athens. He is best remembered for '''proposing''' that the Earth rotates on its axis, from west to east, once every 24 hours. He is also hailed as the originator of the heliocentric theory; although this is disputed.
Heracleides sought to resolve difficulties involved in the observations of Venus and Mercury by '''proposing''' that these two planets revolved around the Sun, while the Sun in turn revolved around Earth. Heracleides also '''suggested''' that Earth rotates.
The Pythagorean concept of uniform circular motion remained unchallenged for approximately the next 2000 years, and it was to the Pythagoreans that Copernicus (a [[Agencies/Jesuits|'''Jesuit''']]) referred to show that the notion of a moving Earth was neither new nor revolutionary.▼
▲(Greek) The first non-geocentric model of the universe was '''proposed''' by the Pythagorean philosopher Philolaus, who '''taught''' that at the center of the universe was a "central fire", around which the Earth, Sun, Moon and planets revolved in uniform circular motion. This system '''postulated''' the existence of a counter-earth collinear with the Earth and central fire, with the same period of revolution around the central fire as the Earth. The Sun revolved around the central fire once a year, and the stars were stationary. The Earth maintained the same hidden face towards the central fire, rendering both it and the "counter-earth" invisible from Earth. (Kepler later gave an alternative explanation of the Pythagoreans' "central fire" as the Sun.)
▲The Pythagorean concept of uniform circular motion remained unchallenged for approximately the next 2000 years, and it was to the Pythagoreans that Copernicus (a [[Agencies/Jesuits|'''Jesuit''']]) referred to show that the notion of a moving Earth was neither new nor revolutionary.
====270 BC====
| |||