What did eudoxus of cnidus discover?
In two works, Phaenomena and Mirror, Eudoxus described constellations schematically, the phases of fixed stars (the dates when they are visible), and the weather associated with different phases.
What is the meaning of Eudoxus?
of good repute
390 – c. 337 BC. His name Eudoxus means “honored” or “of good repute” (εὔδοξος, from eu “good” and doxa “opinion, belief, fame”).
What is the correct description regarding Eudoxus planetary model?
Eudoxus’ model placed a spherical Earth at the centre of the universe. The Sun, planets, and stars were then placed in giant transparent spheres surrounding it. A model of the universe that has the Earth at the centre is known as a geocentric model of the universe.
What were Eudoxus important contributions to Astromomy?
Eudoxus was the most reknown astronomer and mathematician of his day. In astronomy devised an ingenious planetary system based on spheres. The spherical earth is at rest at the center. Around this center, 27 concentric spheres rotate.
What is Eudoxus theory of irrational numbers?
Eudoxus showed that any irrational number can be approximated to any degree of accuracy by rational numbers. He called this major contribution to number theory, treated in detail on book V of Euclid’s Elements, the theory of proportion.
How many auxiliary spheres did eudoxus of cnidus propose?
According to these works, Eudoxus’ model had twenty-seven homocentric spheres with each sphere explaining a type of observable motion for each celestial object. Eudoxus assigns one sphere for the fixed stars which is supposed to explain their daily movement.
What are the principles of Eudoxus about Earth and universe?
The earth is the center of the universe. All celestial motion is circular. All celestial motion is regular. The center of the path of any celestial motion is the same as the center of its motion.
What other subjects did Eudoxus study?
A polymath, he made important contributions to geography, metaphysics, and ethics. However, his most important work was in geometry, the theory of proportion, and astronomy. Our principal sources for his astronomy are Aristotle, Aratus (3rd cent.
Who is considered the great Geometer?
Apollonius of Perga, (born c. 240 bc, Perga, Pamphylia, Anatolia—died c. 190, Alexandria, Egypt), mathematician, known by his contemporaries as “the Great Geometer,” whose treatise Conics is one of the greatest scientific works from the ancient world.
How many spheres did Eudoxus model the universe Brainly?
For each of the planets Eudoxos provided four spheres: The sphere corresponding to the sphere of the fixed stars (here gray). This sphere rotates daily, east/west about the celestial equator with North and South poles.