PHYSICAL VIBRANT TIMELINE

PHYSICS TIMELINE

01

03

05

eudoxus of cnidus4th century b.c.

CLAUDIUS PLOTEMYAlexandria, Egypt 2nd century A.c.

Tycho Brahe1546–1601

Geocentric modelEarth in the middle Most intuitive

Developed the geocentric modelAlmagestEpicycles

02

04

Nicholas Copernicus1473- 1543

aristarchus3rd century b.c. samos

De revolutionibus orbium coelestiumCopernican model Order of the planet

First heliocentric modelSun un the middle

PHYSICS TIMELINE

08

06

johann kepler

isaac newton

1642–1727

1571-1632

07

galileo galilei 1564-1642

JOHANN KEPLER1571-1630

• He was German.
• He was a matematicien, astronomer and astrologer.
• He was a follower of the Copernican model, and he was the assistant of Tycho Brahe.

• He developed his laws of planetary motion, and this development contribued to the acceptance of the Copernican model.

Tycho Brahe 1546–1601

• He studied mathematics and astronomy.
• He came to the conclusion that the Copernican model defied God’s word as written in the scriptures.
• He proposed a model with the Sun revolving around the Earth and the planets orbiting the Sun.
• Tycho Brahe observed the motions of stars and planets and recorded their movements.
• He had an island observatory equipped with th In 1572, he observed the appearance of a very bright new star.

GALILEO GALILEI1564-1642

• He was an Italian natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion and astronomy.
• He aided the consolidation of the heliocentric model.
• He was condemned by the Church but he didn't stop supporting the Copernican model.

ISAAC NEWTON 1642–1727

• He was English physicist and mathematician
• He was the discoverer of the three laws of motion and the law of universal gravitation.
• He linked universal gravitation to Kepler’s laws of planetary motion. Which means that the heliocentric model of the Solar System was finally accepted by the scientific community.

Nicholas Copernicus 1473- 1543

• He proposed in the De revolutionibus orbium coelestium a heliocentric model, later called Copernican, able to describe the motions of the planets with a precision comparable to that provided by the Ptolemaic system.

• The Roman Catholic Church, rejected his ‘heliocentric’ ideas.

Eudoxus of Cnidus

• The geocentric model was formulated for the first time by Eudoxus of Cnidus in the fourth century B.C.
• The geocentric model places the Earth stationary at the centre of the Universe and hypothesises that the stars and planets rotate around it with uniform circular motions.

Aristarchus of Samos

• An alternative model to the geocentric one is proposed, in the third century B.C.
• the Sun is stationary at the centre of the Universe and the planets, Earth included, revolve around it.

CLAUDIUS PLOTEMY

• the most intuitive cosmological model, is the geocentric model.
• The most elaborate version of this model is by Claudius Ptolemy.
• wrote a treatise destined to dominate astronomical studies for almost 1500 years: the Almagest.