Search
Remove Ads
Advertisement
Search Results
Definition
Nicolaus Copernicus
Nicolaus Copernicus (1473-1543 CE) was a Polish astronomer who famously proposed that the Earth and other planets revolved around the Sun in a heliocentric system and not, as then widely thought, in a geocentric system where the Earth is...
Article
Astronomy in the Scientific Revolution
The astronomers of the Scientific Revolution rejected long-held theories of ancient thinkers like Claudius Ptolemy and Aristotle and instead set out to systematically observe the heavens in order to create a model of the universe that fit...
Image
Nicolaus Copernicus by Jan Matejko
A 19th century CE painting by Jan Matejko of Nicolaus Copernicus (1473-1543 CE), the Polish astronomer who famously proposed that the Earth and other planets revolved around the Sun in a heliocentric system.
Definition
Claudius Ptolemy
Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric model of the universe with planets...
Definition
Galileo Galilei
Galileo Galilei (1564-1642) was an Italian mathematician, physicist, astronomer, and natural philosopher. He created a superior telescope with which he made new observations of the night sky, notably that the surface of the Moon has mountains...
Definition
Hipparchus of Nicea
Hipparchus of Nicea (l. c. 190 - c. 120 BCE) was a Greek astronomer, geographer, and mathematician regarded as the greatest astronomer of antiquity and one of the greatest of all time. He is best known for his discovery of the precession...
Definition
Renaissance Humanism
Renaissance Humanism was an intellectual movement typified by a revived interest in the classical world and studies which focussed not on religion but on what it is to be human. Its origins went back to 14th-century Italy and such authors...
Definition
Greek Astronomy
Ancient Greek astronomy was the study of the universe to understand how it functioned and why apart from the established theistic model that claimed all things were ordered and maintained by the gods. Ancient Greek astronomers relied on observation...
Image
The Heliocentric Universe by Copernicus
A 1520-41 CE illustration of the heliocentric view of our solar system from 'De Revolutionibus Orbium Coelestium' by Nicolaus Copernicus (1473-1543 CE). Copernicus was a Polish astronomer who famously proposed that the Earth and other planets...
Definition
Menelaus of Alexandria
Menelaus of Alexandria was a Greek astronomer, scientist, and mathematician who lived around 100 CE. Menelaus made a significant and lasting contribution to the fields of astronomy, geometry, and trigonometry. His major work, the Spherics...