How was Aristarchus's explanation of the movement of objects in the sky different from other scientists' earlier explanations? Check all that apply.

He discovered Venus’s phases.
He argued that Earth rotates on its axis.
He explained the concept of retrograde motion.
He described the epicycles of the planets in the sky.
He stated that the Sun is the center of the solar system.

Question

09-03-2019
Social Studies

contestada

How was Aristarchus's explanation of the movement of objects in the sky different from other scientists' earlier explanations? Check all that apply.

He discovered Venus’s phases.
He argued that Earth rotates on its axis.
He explained the concept of retrograde motion.
He described the epicycles of the planets in the sky.
He stated that the Sun is the center of the solar system.

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francocanacari francocanacari · Answer 1 · 2019-04-12T23:12:10+02:00

Answer:

Aristarchus's explanation of the movement of objects in the sky was different from other scientists' earlier explanations as he argued that Earth rotates on its axis, and stated that the Sun is the center of the solar system.

Explanation:

Aristarchus was a Greek astronomer and mathematician, born in Samos, Greece. He was the first known person to propose the heliocentric model of the Solar System, placing the Sun, and not the Earth, at the center of the universe. This proposal was made after studying the distance and size of the Sun (he determined that the Sun was much larger than Earth). In addition, he perfected the theory of the rotation of the Earth on its own axis, explained the cycle of the seasons and made more accurate measurements of the tropic year.

kanikabajaj294 kanikabajaj294 · Answer 2 · 2022-04-20T13:21:31+02:00

Aristarchus's explanation of the movement of objects in the sky is different because he argued that the earth rotates on its axis.

What do you mean by a scientist?

A scientist is a person who researches in his area of interest to boost his knowledge.

During the Aristarchus's time, the Pythagorean system was accepted as having planets and a sun located on concentric spheres.

He simply made two statements that the earth spins at the daily motion of stars and the earth and planets move on its axis in a yearly orbit.

Therefore, B is the correct option.

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