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The Greek geographer mathematician astronomer and poet who calculated the circumference of Earth was?
YaniO
Eratosthenes
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∙ 8y ago
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What scientist first proposed the idea of the geocentric model?
Claudius Ptolemy, an Egyptian astronomer, mathematician, and geographer, proposed the geocentric model around 140 B.C.The geocentric model states that the Earth exists at the center of the universe and everything else revolves around it. This was later shown incorrect by multiple other astronomers, such as Galileo, and proposed the more correct Heliocentric model.
Who was Hipparcos of Nicaea?
Hipparchus of Niceau was a Greek astronomer, geographer, and mathematician who lived from 190BC to 120BC. Many consider him to be the greatest astronomer of antiquity for his numerous contributions to the field. He created accurate models for the motion of the Moon and Sun, developed trigonometric theory and tables, compiled a comprehensive star catalog of the western world, invented numerous apparatus such as the astrolabe to aid in astronomical measurement, and developed a systematic method for predicting eclipses. In addition, much of his work was used as the basis for the work of Ptolemy in similar fields, almost 3 centuries after his death.
Who was the Egyptian greek scientist who proved the earth was round?
Eratosthenes of Cyrene was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. His work is comparable to what is now known as the study of geography, and he introduced some of the terminology still used today.
Who was Abu Rehan al beruni?
Al-Beruni's full name is Abu Rehan Mohammad bin Ahmed Al-Beruni. He was born in 973 C.E. at Khawarzim (the old name of Kala-Kalpakskaya in present Uzbekistan). He is remembered by the world as a great and outstanding Physician, Physicist, Mathematician, Geographer, Geologist and Astrologer. Because of his wonderful contributions in most of the above mentioned fields, Abu Rehan Mohammad bin Ahmed Al-Beruni has been given the title of 'al-Ustadh'. He was also a good and mastered Greek, Syriac and Sanskrit. He was a contemporary of Ibn Sina (known as Avicenna in the West). Abu Rehan Mohammad bin Ahmed Al-Beruni discovered seven different ways of finding North and South directions. He is probably to thoroughly discuss and prove that the Earth moves or rotates around its axis. He also calculated the Longitudes and Latitudes very accurately. All these calculations, observations and Theories are presented in his book 'Al-Ather Al-Baqia'. He stated that the speed of light is immense in comparison to the speed of sound. He gave definition and detailed of the Milky Way.
In the ptolemaic model of the universe?
He created the idea that the eart is round and was in motion. He also knew the planets rotated around the sun. Most of his theories were incorrct but were still taught because he was well respected.
Did Eratosthenes have any offspring?
si eratosthenes ay isang Greek astronomer geographer, at isang mathematician. Siya ay nanggaling sa mars
What is the formula that Eratosthenes discovered?
Eratosthenes of Cyrene was a Greek mathematician, elegiac poet, athlete, geographer, and astronomer. He was the first person to calculate the circumference of the earth by using a measuring system using stades, or the length of stadiums during that time period, and the tilt of the earth's axis.
What did the mathematician Hipparchus' famous quote Never deceive friend mean?
Hipparchus' famous quote, 'Never deceive a friend' means that you should remain truthful and loyal to your friends. Hipparchus was a Greek mathematician, geographer, and astronomer.
When was earth diameter first estimated?
Eratosthenes of Cyrene (276 BC - 194 BC) was a Greek mathematician, poet, athlete, geographer and astronomer. He made several remarkable discoveries and inventions: he devised a system of latitude and longitude. He was the first person to calculate the circumference of the Earth with remarkable accuracy, and the tilt of the earth's axis.
What is Eratosthenes?
He was an ancient Greek mathematician of the 2nd/3rd century BC, as well as a poet, geographer, musical composer, scholar, and astronomer. He was the first Greek to estimate the circumference and tilt of the earth. He created a map of the earth based on the knowledge available at the time. He was highly respected, and his calculations of the earth's circumference were used for hundreds of years. Today, his method for finding prime numbers from 1-100 is known as the 'Sieve of Eratosthenes' and is taught in math textbooks.
When did Eratosthenes live and die?
Eratosthenes was born in Cyrene, Shahhat, Libya in 276 BC and died in Alexandria, Egypt in 194 BC. He was an astronomer, mathematician, and geographer, who eventually became the chief librarian at the Library of Alexandria.
What type is a marcator projection?
Who is 'marcator'? , I think you mean 'Mercator' , the Dutch geographer and astronomer.
In what part of China was the seismograph invented?
Zhang Heng, a Chinese astronomer, mathematician, inventor, geographer, cartographer, artist, poet, statesman, and literary scholar was from Nanyang, Henan, and probably invented his primitive instrument there. Links can be found below for more information.
Who is ptolemis?
Ptolemy was a Roman citizen of Egypt who had wrote in Greek. He was a mathematician, astronomer, geographer, astrologer, and a poet of a single epigram in the Greek Anthology. He lived in Egypt under a Roman rule and is believed to have been born in the town of Ptolemais Hermiou in the Thebaid. He died in Alexandria around AD 168.
Who invented the grid system of latitude and longitude?
Hipparchus was the best astronomers of his time and was a Greek astronomer, geographer, and mathematician. He very accurately cataloged over 1,000 stars. Ptolemy was a great admirer of Hipparchus research and from what I've seen Ptolemy was often said to do what Hipparchus had done.
Who was al'khowarizmi?
al'khowarizmi is a variant of the last name of Muhammad ibn Mūsā al-Khwārizmī who was a Persian Islamic mathematician, astronomer, astrologer and geographer. The words algorism and algorithm stem from Algoritmi, the Latinization of his name. His name is also the origin of the Spanish word guarismo and of the Portuguese word algarismo, both meaning digit.
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.
