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Ptolemy
Ptolemy was an Egyptian mathematician and scientist. He lived from 90 to 168 AD.
412 Questions
Ptolemy XIV died around 168 AD by drowning during battle with Julius Caesar by the weight of his gold breastplate.
Is Ptolemy the geographer related to Cleopatra?
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Ptolemy XIII was Cleopatra's brother and also her first husband.
Who was ptolemy and why is he famous?
Claudius Ptolemy was famous as an ancient scholar. He was a Roman of Greek origin, living and working in Alexandria. He was a mathematician, astronomer and geographer. He is best known for his Algemest, a writing on astronomy and for his geography.
Who was the last ruler in the ptolemy I dynasty?
Cleopatra VII (51-
30BC) she was the last ruler before Egypt became a Roman province.
What did ptolemy do research in?
Ptolemy lived in Alexandria, Egypt from about 120 A.D to 180 A.D. He is known as The Father of astronomy. He developed the idea that the Earth was the center of the universe.
AnswerPtolemy was an ancient Greek astronomer who lived in Egypt and developed a model for viewing the universe known as the Ptolemaic Universe. He believed all of the known spheres in the skies were on tracks that went around the Earth. This model was taken as "Gospel truth" for 1500 years until it was replaced by the Sun-center model put forth by Copernicus in the 16th century A.D.I'm not sure why you think he revolutionized map making. He definitely created an idea that subsequent generations "believed" and then created maps based on his perspective of the universe. He had an active imagination...one that reigned supreme and unchallenged. He was a fantastic thinker for his day and very persuasive. Erastosthenes proved that the earth was round almost 200 years before the birth of Christ. It has always saddened me to know how many years of technology were stymied by ignoring his information.
The real revolutionary ideas in map making came about once it was accepted that the earth was round and then again with the discovery of a means to determine longitude by use of a sea-worthy clock. The mariners were great with latitude by use of sextants, but if you look at old maps (before the late 1700's) they show North America as close to Europe as Bermuda is to Florida.The scale was completely off as well as the juxtaposition of land masses/continents. It really has not been that long ago...
AnswerThere were a number of other important people named Ptolemy in ancient times. The kings of Egypt during the Hellenistic Age were all named Ptolemy, or took that name when they became kings, with a total of fifteen kings. The first of these, Ptolemy Soter, was a general for Alexander the great, and, as possibly an illegitimate son of Philip of Macedon, could have been Alexander's older half brother. The only Ptolemaic monarch with any other name was Cleopatra.The ancestral founder of the Greek city of Thebes, in the thirteenth century BC, was called Ptolemy, or Polemy.
There were a number of kings of other Hellenistic countries named Ptolemy.
What kind of telescope Ptolemy use?
Ptolemy never saw a telescope. The first telescopes were invented about 1500 years after Ptolemy died.
How did Ptolemy further develop the geocentric model?
Ptolemy further developed the geocentric model by introducing the concept of epicycles, which explained the complex movements of planets as they traveled in small circles (epicycles) while orbiting the Earth in larger circles (deferents). This allowed for a more accurate prediction of planetary positions, accommodating observed retrograde motion. His work, particularly in the "Almagest," synthesized earlier astronomical knowledge and provided a comprehensive framework that dominated Western astronomy for over a millennium.
What were the most important discoveries in the 1850s?
your mother, and:
Discovery of the enzyme, eloctysis, anesthesia, nitroglycerin, conservation of energy law, among other (less interesting) things.
How are ptolemy and copernicus' ideas about the universe different from each other?
Ptolemy and Copernicus' ideas about the universe are different from each other in the sense that Ptolemy thought that every celestial object as well as the sun and the moon orbited the Earth whereas Copernicus had the thought that all planets orbited the Sun, while the Moon orbited the Earth.
What was ptolemy theory on planets?
The astronomical system of Ptolemy, in which the earth is at the center of the universe with the sun, moon, planets, and stars revolving about it in circular orbits.
Ptolemaic system Ptolemy believed that Earth was at the center of the universe and that the Sun and planets orbited Earth (with the planets also moving in smaller circles called epicycles). In this system, the centers of Mercury's and Venus's epicycles always lie on the line shown in the diagram between the Earth and the Sun.
Which Scientists disaprove Ptolemys geosentric theory of the universe?
Galileo and Copernicus were two of the scientists to disprove Ptolemy's geocentric theory of the universe. The Ptolemaic theory stated that the center was earth.
Who was more accurate Ptolemy or Copernicus?
Copernicus was correct in believing in the heliocentric model of the Solar System, which said the planets rotated round the sun. Ptolemy accepted the traditional geocentric view which had the Earth at the centre of the Solar System.
When did Ptolemy discover the earth was at the center of the universe?
Never. It was one of the theories that were in play during his lifetime, and eventually the heliocentric theory, with the planets orbiting the Sun, was generally accepted. But it was Kepler's theory that has been accepted rather than Coprnicus's theory as supported by Galileo.
Whether the Sun was at the centre or not was only part of the whole theory, and Kepler's elliptical orbits are now believed to represent the correct model, and not Copernicus's model which used circles and epicycles.
When did Ptolemy create the map of the world?
This is a cylindrical map projection. It is a standard map for nautical purposes because it represents lines of constant course, called Rhum Lines, as straight segments. This is precisely the type of route employed by ships at sea. Compasses are used to indicate geographical direction and to steer the ship. The projection was presented by Mercator in 1569
How do you pronuse the word ptolemy''?
There are various possibilities. The source of the ancient name was the same as the source of the English word "polemic." In ancient times it may have been pronounced with the T, the P, or both. An alternate spelling in ancient Greek was "Polemos," which is how it appears in Homer, and a nephew of Antigonus I (382-301 BC), was named Polemaeus. It comes into modern Italian as "Tolomeo," and ancient Aramaic as "Talmai," but the modern Arabic equivalent is transliterated as "Batlemos," pronouncing both the P (converted to a B) and the T.
What were the similarities between Ptolemy's model and Copernicus' model?
Both Copernicus heliocentric and the Ptolemaic models agreed on the need for epicycles. These were miniature orbits that the celestial bodies travelled on as well as their normal orbits.
Copernicus still invigaed the bodies orbiting in perfect circles and had to put these in to explain some of the movements of the planets. This may have contributed to his ideas being largely dismissed as it was just as complicated as the already established model. It was not until Kepler proposed elliptical orbits was this problem resolved.
Did Claudius ptolemy go to school?
There is no definitive evidence that Claudius Ptolemy attended a formal school. His education likely came from self-study and learning within intellectual circles of his time. Ptolemy was a Roman citizen of Greek descent known for his work in astronomy and geography.
Who was the first scientist to dispute Ptolemy's model of a geocentric or Earth-entered universe?
Nicolaus Copernicus < NOVA NET ANSWER
Who replaced circles with ellipses in a helicentric model of the universe?
Johannes Kepler replaced circles with ellipses in the heliocentric model of the universe.
