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Ancient Greek Astronomy
Ancient Greek astronomy is the astronomy written in the Greek language during classical antiquity. Greek astronomy is understood to include the Ancient Greece, Ancient Greek, Hellenistic period, Hellenistic, Roman Empire, Greco-Roman, and Late antiquity, late antique eras. Ancient Greek astronomy can be divided into three phases, with ''Classical Greek astronomy'' being practiced during the 5th and 4th centuries BC, ''Hellenistic period, Hellenistic astronomy'' from the 3rd century BC until the formation of the Roman Empire in the late 1st century BC, and ''Greco-Roman astronomy'' continuing the tradition in the Roman world. During the Hellenistic era and onwards, Greek astronomy expanded beyond the geographic region of Greece as the Greek language had become the language of scholarship throughout the Hellenistic world, in large part delimited by the boundaries of the Macedonian Empire established by Alexander the Great. The most prominent and influential practitione ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antikythera Fragment A (Front)
Antikythera ( , ; , ) or Anticythera, known in antiquity as Aigilia (), is a Greek island lying on the edge of the Aegean Sea, between Crete and Peloponnese. Since the 2011 local government reform, it is part of the municipality of Kythira island. Antikythera may also refer to the Kythira-Antikythira Strait, through which Mediterranean water enters the Sea of Crete. Its land area is , and it lies south-east of Kythira. It is the most distant part of the Attica region from its heart in the Athens metropolitan area. It is lozenge-shaped, NNW to SSE by ENE to WSW. It is notable for being the location of the discovery of the Antikythera mechanism and for the historical Roman-era Antikythera wreck. Its main settlement and port is Potamós (pop. 34 inhabitants in the 2011 census). The only other settlements are Galanianá (pop. 15), and Charchalianá (pop. 19). Antikythera is periodically visited by the Ablemon Nautical Company ferry ''F/B Ionis'' on its route between Pirae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euclid
Euclid (; ; BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the '' Elements'' treatise, which established the foundations of geometry that largely dominated the field until the early 19th century. His system, now referred to as Euclidean geometry, involved innovations in combination with a synthesis of theories from earlier Greek mathematicians, including Eudoxus of Cnidus, Hippocrates of Chios, Thales and Theaetetus. With Archimedes and Apollonius of Perga, Euclid is generally considered among the greatest mathematicians of antiquity, and one of the most influential in the history of mathematics. Very little is known of Euclid's life, and most information comes from the scholars Proclus and Pappus of Alexandria many centuries later. Medieval Islamic mathematicians invented a fanciful biography, and medieval Byzantine and early Renaissance scholars mistook him for the earlier philo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontus (mythology)
__NOTOC__ In Greek mythology, Pontus (; ) was an ancient, pre-Olympian sea-god, one of the Greek primordial deities. Pontus was Gaia's son and has no father; according to the Greek poet Hesiod, he was born without coupling, though according to Hyginus, Pontus is the son of Aether and Gaia. Hyginus, ''Fabulae'Preface/ref> Mythology For Hesiod, Pontus seems little more than a personification of the sea, ''ho póntos'' (), by which Hellenes signified the Mediterranean Sea. After the castration of his brother, Uranus, Pontus, with his mother Gaia, fathered Nereus (the Old Man of the Sea), Thaumas (the awe-striking "wonder" of the Sea, embodiment of the sea's dangerous aspects), Phorcys and his sister-consort Ceto, and the "Strong Goddess" Eurybia.Hesiod, ''Theogony'233–239 Gantz, p. 16; Grimal, s.v. Pontus. For a genealogical table of the descendants of Gaia and Pontus, see Gantz, p. 805. With the sea goddess Thalassa (whose own name simply means "sea" but is derived from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceanus
In Greek mythology, Oceanus ( ; , also , , or ) was a Titans, Titan son of Uranus (mythology), Uranus and Gaia, the husband of his sister the Titan Tethys (mythology), Tethys, and the father of the River gods (Greek mythology), river gods and the Oceanids, as well as being the great river which encircled the entire world. Etymology According to M. L. West, the etymology of Oceanus is "obscure" and "cannot be explained from Greek". The use by Pherecydes of Syros of the form () for the name lends support for the name being a loanword. However, according to West, no "very convincing" foreign models have been found. A Semitic derivation has been suggested by several scholars, while R. S. P. Beekes has suggested a loanword from the Aegean Pre-Greek non-Indo-European Stratum (linguistics), substrate. Nevertheless, Michael Janda sees possible Indo-European connections. Genealogy Oceanus was the eldest of the Titan offspring of Uranus (Sky) and Gaia (Earth). Hesiod lists his T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaia
In Greek mythology, Gaia (; , a poetic form of ('), meaning 'land' or 'earth'),, , . also spelled Gaea (), is the personification of Earth. Gaia is the ancestral mother—sometimes parthenogenic—of all life. She is the mother of Uranus (Sky), with whom she conceived the Titans (themselves parents of many of the Olympian gods), the Cyclopes, and the Giants, as well as of Pontus (Sea), from whose union she bore the primordial sea gods. Her equivalent in the Roman pantheon was Terra.''Larousse Desk Reference Encyclopedia'', The Book People, Haydock, 1995, p. 215. Etymology The Greek name (''Gaia'' or ) is a mostly epic, collateral form of Attic (''Gē'' ), and Doric (''Ga'' ), perhaps identical to (''Da'' ), both meaning "Earth". Some scholars believe that the word is of uncertain origin. Beekes suggested a probable Pre-Greek origin. Robert S. P. Beekes, ''Etymological Dictionary of Greek'', Brill, 2009, pp. 269–270 (''s.v.'' "γῆ"). M.L. West derives the na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ouranos
In Greek mythology, Uranus ( , also ), sometimes written Ouranos (, ), is the personification of the sky and one of the Greek primordial deities. According to Hesiod, Uranus was the son and husband of Gaia (Earth), with whom he fathered the first generation of Titans. However, no cult addressed directly to Uranus survived into classical times, and Uranus does not appear among the usual themes of Greek painted pottery. Elemental Earth, Sky, and Styx might be joined, however, in solemn invocation in Homeric epic. The translation of his name in Latin is Caelus. Etymology Most linguists trace the etymology of the name to a Proto-Greek form ''*Worsanós'' (), enlarged from *''ṷorsó-'' (also found in Greek ''()'' 'to urinate', Sanskrit ''varṣá'' 'rain', Hittite ''ṷarša-'' 'fog, mist'). Robert S. P. Beekes, ''Etymological Dictionary of Greek'', vol. 2 (Leiden: Brill, 2009), 1128–1129. The basic Indo-European root is ''*ṷérs-'' 'to rain, moisten' (also found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tartarus
In Greek mythology, Tartarus (; ) is the deep abyss that is used as a dungeon of torment and suffering for the wicked and as the prison for the Titans. Tartarus is the place where, according to Plato's '' Gorgias'' (), souls are judged after death and where the wicked received divine punishment. Tartarus appears in early Greek cosmology, such as in Hesiod's ''Theogony'', where the personified Tartarus is described as one of the earliest beings to exist, alongside Chaos and Gaia (Earth). Greek mythology In Greek mythology, Tartarus is both a deity and a place in the underworld. As a deity In the Greek poet Hesiod's ''Theogony'' ( late 8th century BC), Tartarus was the third of the primordial deities, following after Chaos and Gaia (Earth), and preceding Eros, and was the father, by Gaia, of the monster Typhon. According to Hyginus, Tartarus was the offspring of Aether and Gaia. As a location Hesiod asserts that a bronze anvil falling from heaven woul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flat Earth
Flat Earth is an archaic and scientifically disproven conception of the Figure of the Earth, Earth's shape as a Plane (geometry), plane or Disk (mathematics), disk. Many ancient cultures, notably in the cosmology in the ancient Near East, ancient Near East, subscribed to a flat-Earth cosmography. The model has undergone a modern flat Earth beliefs, recent resurgence as a conspiracy theory in the 21st century. The idea of a spherical Earth appeared in ancient Greek philosophy with Pythagoras (6th century BC). However, the Early Greek cosmology, early Greek cosmological view of a flat Earth persisted among most Pre-Socratic philosophy, pre-Socratics (6th–5th century BC). In the early 4th century BC, Plato wrote about a spherical Earth. By about 330 BC, his former student Aristotle had provided strong empirical evidence for a spherical Earth. Knowledge of the Earth's global shape gradually began to spread beyond the Hellenistic period, Hellenistic world. By the early period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaximander
Anaximander ( ; ''Anaximandros''; ) was a Pre-Socratic philosophy, pre-Socratic Ancient Greek philosophy, Greek philosopher who lived in Miletus,"Anaximander" in ''Chambers's Encyclopædia''. London: George Newnes Ltd, George Newnes, 1961, Vol. 1, p. 403. a city of Ionia (in modern-day Turkey). He belonged to the Milesian school and learned the teachings of his master Thales. He succeeded Thales and became the second master of that school where he counted Anaximenes of Miletus, Anaximenes and, arguably, Pythagoras amongst his pupils. Little of his life and work is known today. According to available historical documents, he is the first philosopher known to have written down his studies, although only one fragment of his work remains. Fragmentary testimonies found in documents after his death provide a portrait of the man. Anaximander was an early proponent of science and tried to observe and explain different aspects of the universe, with a particular cosmogony, interest in its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitruvius
Vitruvius ( ; ; –70 BC – after ) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work titled . As the only treatise on architecture to survive from antiquity, it has been regarded since the Renaissance as the first book on architectural theory, as well as a major source on the canon of classical architecture. It is not clear to what extent his contemporaries regarded his book as original or important. He states that all buildings should have three attributes: , , and ("strength", "utility", and "beauty"), principles reflected in much Ancient Roman architecture. His discussion of perfect proportion in architecture and the human body led to the famous Renaissance drawing of the ''Vitruvian Man'' by Leonardo da Vinci. Little is known about Vitruvius' life, but by his own descriptionDe Arch. Book 1, preface. section 2. he served as an artilleryman, the third class of arms in the Roman military offices. He probably served as a senior of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theon Of Smyrna
Theon of Smyrna ( ''Theon ho Smyrnaios'', ''gen.'' Θέωνος ''Theonos''; fl. 100 CE) was a Greek philosopher and mathematician, whose works were strongly influenced by the Pythagorean school of thought. His surviving ''On Mathematics Useful for the Understanding of Plato'' is an introductory survey of Greek mathematics. Life Little is known about the life of Theon of Smyrna. A bust created at his death, and dedicated by his son, was discovered at Smyrna, and art historians date it to around 135 CE. Ptolemy refers several times in his ''Almagest'' to a Theon who made observations at Alexandria, but it is uncertain whether he is referring to Theon of Smyrna.James Evans, (1998), ''The History and Practice of Ancient Astronomy'', New York, Oxford University Press, 1998, p. 49 The lunar impact crater Theon Senior is named for him. Works Theon wrote several commentaries on the works of mathematicians and philosophers of the time, including works on the philosophy of Plato. Most of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
