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Ptolemy
Ptolemy was an Egyptian mathematician and scientist. He lived from 90 to 168 AD.
412 Questions
How many 40 caliber mk 4 series 80 government models were made?
There is no specific number available for the total production of the 40 caliber mk 4 series 80 government models. Production numbers for firearms can vary widely and may not be publicly disclosed by manufacturers.
Where can you find artifacts that archaeologist found to prove Cleopatra vii was alive?
In Egypt there are temple carvings of Cleopatra making offerings to the gods. There are also statues of Cleopatra in the Egyptian style and there is a famous bust of someone they say is Cleopatra. But the best evidence for her existence is in the various coins dating to her reign and bearing her picture.
Who told king Ptolemy that there is no royal way to learn geomertry?
The philosopher Euclid is traditionally attributed with saying, "There is no royal road to geometry," to King Ptolemy I of Egypt. This statement emphasizes that geometry requires diligent study and cannot be mastered through shortcuts or privileged treatment.
Did Ptolemy have siblings and parents?
If you are referring to Ptolemy VIII, yes, he did. It was his sister and co-ruler, Cleopatra.
What did Ptolemy contribute to the scientific revolution?
He published Geometry books and came up with a way to calculate astronomical movements.
What did Claudius Ptolemy believe in?
Ptolemy developed several mathematical models to describe the motions of the sun, the moon, the planets and the stars. The book that describes these models is called "The Almagest" or "Ptolemy's Almagest". The models all assume:
1. The earth is stationary.
2. All objects travel with uniform speed on a perfectly circular orbit.
However, a model that placed the earth in the centre of the orbits of all other objects would not work because it does not account for various anomalies, including the varying length of seasons, the irregularity of eclipses of the moons and the retrograde motion of the planets. Ptolemy used two mathematical devices to deal with the anomalies: eccentricity (an offset from the centre of a circle) and epicycles - circular orbits whose centre (or eccentric) itself traveled in a uniform circular orbit.
Much of the material in The Almagest was already known to Greek astronomers. Ptolemy's contribution was to consolidate all known results, make large improvements to the models, and to write it all down in a way that became a standard for the way to present the results of scientific enquiry.
His book was the standard text book for astronomers until his models were ultimately improved by Copernicus, Kepler and Newton.
Ptolemy also wrote a treatise on Astrology, based on his deep knowledge of the motions of the heavenly bodies. This work is called The Tetrabiblos.
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.
