Ptolemy

Ptolemy was an Egyptian mathematician and scientist. He lived from 90 to 168 AD.

1,682 Questions
Ancient Egypt
Ptolemy

How do do pronounce Ptolemy?

toll-uh-mee

174175176
Astronomy
Copernicus
Ptolemy

Who believed that Earth was the center of the Universe?

Ptolemy and later Aristotle spread this belief. The Catholic Church continued teaching this and Galileo and Copernicus had a problem changing people's minds. They had telescopes that ancient peoples didn't have so they could do that math and prove the sun was in the center of the solar system.

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Cleopatra
Ptolemy

Why was Cleopatra V11 famous when ruled?

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

Cleopatra was not famous when she ruled, she was infamous. Her neighbors disliked her because of her meddling in their internal affairs, especially Herod. Rome disliked her because of her alleged seduction of Marc Antony way from Roman values, and her own family had been murdered at her instigation.

105106107
Cleopatra
Ptolemy

Did Cleopatra have a positive effect on Egypt?

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

No, not hardly. She last the country to Rome. That could never be construed as a positive effect.

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Astronomy
Ptolemy

Did Cladius Ptolemy make the first catalog of stars?

No. Charles messier made the first catalogue of stars and skies. His first version published in 1774 and other in 1781

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Ancient Egypt
Ptolemy

What was the date Ptolemy discovered retrograde motion?

He did not discover it because it had been witnessed for thousands of years. He, however, was able to explain it as the motion of planets around the sun.

939495
Roman Empire
Ptolemy

Who was the father of Ptolemy XV Caesar ion?

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

Good question and it will probably never be answered. Ptolemy XV, nicknamed Caesarion, was said by Cleopatra to be the son of Julius Caesar. However, Caesar never recognized the kid and never claimed him as a son. There are valid reasons to question Cleopatra's claim.

676869
Ancient Egypt
Ptolemy

When and where did Ptolemy live?

People aren't exactly sure when he lived, but they say from the year 87-150. He lived in Alexandria, Egypt

858687
Ancient Egypt
Cleopatra
Ptolemy

Why did Ptolemy exiled Cleopatra from Egypt?

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

Ptolemy XIII didn't exactly exile Cleopatra -- he would have killed her if she had been caught. She went into exile to save her life. It was all about power.

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Copernicus
Ptolemy
Mathematicians

How did Nicolaus Copernicus' view of the universe differ from the medieval view?

he thought the earth revolved around the sun. every one else thought it was the other way round.

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Ptolemy
Ancient Egypt

How many kids did Octavia have?

I think she had one child, a son.

From Octavia Grove (I also have one child, a son!)

676869
Astronomy
Copernicus
Ptolemy

Why did the geocentric model make sense to the Greeks?

They nedded to explain everything in life and for the thing that there was no logical or proof answer they invented something take for example theyr mytologi, if you stand and look a the sun,stars,plants...ect it will apear to you that things move arround us cous yo don't fell or realize that the earth is moving.

Hope it helped open your mind about Greeks

616263
Copernicus
Ptolemy

How did Copernicus disprove ptolemy's theory about universe?

Copernicus did not disprove anything. He advanced a simpler theory which turned out to be more correct.

596061
Ptolemy

Who developed ideas that contradicted Ptolemy's geocentric model of the universe?

Nicholas Copernicus did

596061
Cleopatra
Mummies
Ptolemy

Have all pharaohs tombs been found?

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

No, they're still digging them up every once in a while.

353637
Ptolemy

Who was the first scientist to dispute Ptolemy's model of a geocentricor Earth-Centereduniverse?

Nicholas Copernicus.... I think. :)

yes that's right
Aristarchus of Samos was the ancient Greek astronomer and mathematician who first proposed that the Earth moved around the "central fire", or the Sun.

293031
Ancient History
Cleopatra
Ptolemy

What would have happened if rome never had conquered Egypt?

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

The answer to your question calls for speculation, not fact. You can get a hundred views on the subject, but none of them would be correct because the event you are asking about did not happen.

272829
Ancient Egypt
Ptolemy

How many pages does ptolemy's gate have?

515 pages....thats what my resources say at least

474849
Ancient Egypt
Ancient Greece
Ptolemy

Why was Ptolemy important to Ancient Greece?

because he was a major scientist that now 3 countries use today because of his findings.

414243
Ancient Egypt
Ptolemy

Who was the last Pharaoh of Egypt?

That depends on who you ask.

The last actual Pharaoh of Egypt was a shared throne between Cleopatra VII and her son Ptolemy XV, from 44 to 30 BCE After the death of Cleopatra, Egypt became a Roman province, ruled by the Emperor of Rome.

In some cases, the Roman Emperor was also titled Pharaoh of Egypt, specifically while he was in Egypt. There is at least one Egyptian list of kings which lists the Emperors of Rome as Pharaohs for another 280 years, ending with Decius, who was Emperor from 249 to 251, CE.

But, the most common answer would be Cleopatra.

515253
Ptolemy

Did ptolemy support the geocentric or heliocentric model?

Ptolemy's research in the field of astronomy led him to continue down the vein of other Greek scholars who believed in the Geocentric system of planetary orbit. The Ptolemaic system, which believed that the planets and sun moved in small mini-orbits, known as epicycles, within a larger, greater orbit around the earth, was comprised in order from closest to farthest as Mercury, Venus, Sun, Mars, Jupiter, and Saturn. Due to this system's ability to fairly accurately predict the paths of the observable planets in the sky, it remained widely accepted until Copernicus became champion, if you will, of the Heliocentric theory. Even then, Ptolemy's system was still better able to explain the motions of the planets. It was not until the later addition of Kepler's laws of motion that the Heliocentric theory fell neatly into place.

454647
Galileo
Ptolemy

How was Ptolemy's geocentric model disproved by Galileo?

One observation definitely disproved the Ptolemaic model, although it didn't prove that Copernicus was right (as Tycho Brahe pointed out). This was the observation that Venus has phases, much like our Moon does.

To the naked eye, Venus always appears as a bright dot in the sky. With a telescope, however, it is fairly easy to see the phases of Venus. Just as the Moon has phases, Venus too has phases based on the planet's position relative to us and the Sun.

There was no way for the Ptolemaic model (Earth-centered solar system) to account for these phases. They can only occur as Galileo saw them if Venus is circling the Sun, not the Earth.

454647
Ancient Egypt
Ptolemy

Is there anything named after Ptolemy?

Ptolemy has two craters, an asteroid and a system named after him.

  • The crater Ptolemaeus on Mars.
  • The crater Ptolemaeus on the Moon.
  • The asteroid 4001 Ptolemaeus.
  • The geocentric model of the universe, known as the Ptolemaic system.
434445
Ancient Egypt
Ptolemy

Where and when did ptolemy make his astronomical observations?

in a lab

434445
Aristotle
Copernicus
Ptolemy

Why did people believe that a geocentric system was correct?

The geocentric system is very plausible to people who have not looked deeply into the subject of astronomy, because at first glance, that's how things appear. We stand on a world that does not feel like it is moving. Our senses tell us that it is motionless (not counting earthquakes). It is somewhat difficult to imagine that this vast, seemingly motionless surface that we are standing on is actually moving through space. And when we look at the sky, we see various astronomical objects which rise and set, just as if they were circling the motionless Earth.

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