In Great Astronomers, Robert Stawell Ball documents the developments in astronomy from the ancient period to the nineteenth century. He begins with a chapter on the life and works of Ptolemy. Which sentence in this excerpt from Great Astronomers shows that Ptolemy’s theory was flawed, but that he was still the undisputed authority on astronomy for centuries?

Explanation:

The following excerpt from Great Astronomers shows that Ptolemy’s theory was flawed, but that he was still the undisputed authority on astronomy for centuries.

“Though every child may now know more of the actual truths of the celestial motions than ever Ptolemy knew, yet the fact that his work exercised such an astonishing effect on the human intellect for some sixty generations, shows that it must have been an extraordinary production. We must look into the career of this wonderful man to discover wherein lay the secret of that marvelous success which made him the unchallenged instructor of the human race for such a protracted period.”

Claudius Ptolemy who lived in Rome in some 100 AD gave a model of the solar system. According to his model, Earth was the center of the solar system and all the other plants and the Sun revolves around it. His model can accurately describe the motions of the heavenly bodies. This was his major contribution to the field of Astronomy.

Though his theory became invalid after the correct discovery about the solar system was made, but Ptolemy is still one of the most known astronomers for centuries. The above excerpt explains that in present times even a child can be more accurate to tell about the motions of the celestial bodies still he’ll be known forever.

Hope this helped you!

Explanation:

The following excerpt from Great Astronomers shows that Ptolemy’s theory was flawed, but that he was still the undisputed authority on astronomy for centuries.

“Though every child may now know more of the actual truths of the celestial motions than ever Ptolemy knew, yet the fact that his work exercised such an astonishing effect on the human intellect for some sixty generations, shows that it must have been an extraordinary production. We must look into the career of this wonderful man to discover wherein lay the secret of that marvelous success which made him the unchallenged instructor of the human race for such a protracted period.”

Claudius Ptolemy who lived in Rome in some 100 AD gave a model of the solar system. According to his model, Earth was the center of the solar system and all the other plants and the Sun revolves around it. His model can accurately describe the motions of the heavenly bodies. This was his major contribution to the field of Astronomy.

Though his theory became invalid after the correct discovery about the solar system was made, but Ptolemy is still one of the most known astronomers for centuries. The above excerpt explains that in present times even a child can be more accurate to tell about the motions of the celestial bodies still he’ll be known forever.

Hope this helped you!

jefferson introduced the idea that one does not change a government for "light" causes because he wanted to emphasize the seriousness of colonists' reasons for declaring independence.