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Pentagram
A pentagram (sometimes known as a pentalpha, pentangle, or star pentagon) is a regular five-pointed star polygon, formed from the diagonal line segments of a convex (or simple, or non-self-intersecting) regular pentagon. Drawing a circle around the five points creates a similar symbol referred to as the pentacle, which is used widely by Wiccans and in paganism, or as a sign of life and connections. The word "pentagram" refers only to the five-pointed star, not the surrounding circle of a pentacle. Pentagrams were used symbolically in ancient Greece and Babylonia. Christians once commonly used the pentagram to represent the Five Holy Wounds, five wounds of Jesus. Today the symbol is widely used by the Wiccans, witches, and pagans. The pentagram has Magic (supernatural), magical associations. Many people who practice neopaganism wear jewelry incorporating the symbol. The word ''pentagram'' comes from the Greek language, Greek word πεντάγραμμον (''pentagrammon''), fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regular Pentagon
In geometry, a pentagon (from the Greek πέντε ''pente'' meaning ''five'' and γωνία ''gonia'' meaning ''angle'') is any five-sided polygon or 5-gon. The sum of the internal angles in a simple pentagon is 540°. A pentagon may be simple or self-intersecting. A self-intersecting ''regular pentagon'' (or ''star pentagon'') is called a pentagram. Regular pentagons A '' regular pentagon'' has Schläfli symbol and interior angles of 108°. A '' regular pentagon'' has five lines of reflectional symmetry, and rotational symmetry of order 5 (through 72°, 144°, 216° and 288°). The diagonals of a convex regular pentagon are in the golden ratio to its sides. Given its side length t, its height H (distance from one side to the opposite vertex), width W (distance between two farthest separated points, which equals the diagonal length D) and circumradius R are given by: :\begin H &= \frac~t \approx 1.539~t, \\ W= D &= \frac~t\approx 1.618~t, \\ W &= \sqrt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Polygon
In geometry, a star polygon is a type of non-convex polygon. Regular star polygons have been studied in depth; while star polygons in general appear not to have been formally defined, certain notable ones can arise through truncation operations on regular simple and star polygons. Branko Grünbaum identified two primary definitions used by Johannes Kepler, one being the regular star polygons with intersecting edges that don't generate new vertices, and the second being simple isotoxal concave polygons. The first usage is included in polygrams which includes polygons like the pentagram but also compound figures like the hexagram. One definition of a ''star polygon'', used in turtle graphics, is a polygon having 2 or more turns (turning number and density), like in spirolaterals.Abelson, Harold, diSessa, Andera, 1980, ''Turtle Geometry'', MIT Press, p.24 Etymology Star polygon names combine a numeral prefix, such as ''penta-'', with the Greek suffix '' -gram'' (in this cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentacle
A pentacle (also spelled and pronounced as ''pantacle'' in Thelema, following Aleister Crowley, though that spelling ultimately derived from Éliphas Lévi) "The Pantacle of Frater V. I. O." is a talisman that is used in magical evocation, and is usually made of parchment, paper, cloth, or metal (although it can be of other materials), upon which a magical design is drawn. Protective symbols may also be included (sometimes on the reverse), a common one being the six-point form of the Seal of Solomon. Pentacles may be sewn to the chest of one's garment, or may be flat objects that hang from one's neck or are placed flat upon the ground or altar. Pentacles are almost always shaped as disks or flat circles. In the Hermetic Order of the Golden Dawn, though, a pentacle is placed within the triangle of evocation. Many varieties of pentacle can be found in the grimoire called the ''Key of Solomon''. Pentacles are also used in the neopagan magical religion called Wicca, alongside other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ortygia
Ortygia (; it, Ortigia; grc-gre, Ὀρτυγία) is a small island which is the historical centre of the city of Syracuse, Sicily, Syracuse, Sicily. The island, also known as the ''Città Vecchia'' (Old City), contains many historical landmarks. The name originates from the ancient Greek ''ortyx'' (ὄρτυξ), which means "Quail". Overview The Homeric Hymn to Delian Apollo has it that the goddess Leto stopped at Ortygia to give birth to Artemis, the firstborn of her twins. Artemis then helped Leto across the sea to the island of Delos, where Leto gave birth to Apollo. Other ancient sources state that the twins were born in the same place – which was either Delos or Ortygia – but Ortygia, according to Strabo was an old name of Delos. Further, there were perhaps a half-dozen other places called Ortygia, so that the identification is uncertain.Hammond and Scullard (editors). ''The Oxford Classical Dictionary'' (Oxford: Clarendon Press, 1970), 760. It was also said that As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pherecydes Of Syros
Pherecydes of Syros (; grc-gre, Φερεκύδης ὁ Σύριος; fl. 6th century BCE) was an Ancient Greek mythographer and proto-philosopher from the island of Syros. Little is known about his life and death. Some ancient testimonies counted Pherecydes among the Seven Sages of Greece, although he is generally believed to have lived in the generation after them. Others claim he was either a student of Pittacus, the teacher of Pythagoras, or a well-traveled autodidact who had studied secret Phoenician books. Pherecydes wrote a book on cosmogony, known as the "Pentemychos" or "Heptamychos". He was considered the first writer to communicate philosophical ideas in prose as opposed to verse. However, other than a few short fragments preserved in quotations from other ancient philosophers and a long fragment discovered on an Egyptian papyrus, his work is lost. However, it survived into the Hellenistic period and a significant amount of its content can be conjectured indirectly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damascius
Damascius (; grc-gre, Δαμάσκιος, 458 – after 538), known as "the last of the Athenian Neoplatonists," was the last scholarch of the neoplatonic Athenian school. He was one of the neoplatonic philosophers who left Athens after laws confirmed by emperor Justinian I forced the closure of the Athenian school in c. 529 AD. After he left Athens, he may have sought refuge in the court of the Persian King Chrosroes, before being allowed back into the Byzantine Empire. His surviving works consist of three commentaries on the works of Plato, and a metaphysical text entitled ''Difficulties and Solutions of First Principles''. Life Much of what is known about Damascius' life comes from his semi-autobiographical work called ''The Philosophical History'', or ''Life of Isidore'', and from a work called ''Vita Severi'' written by the 6th-century bishop and historian Zacharias Scholasticus. Damascius, as his name suggests, was born in Damascus in c. 462 AD, and travelled to Alexa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chronos
Chronos (; grc-gre, Χρόνος, , "time"), also spelled Khronos or Chronus, is a personification of time in pre-Socratic philosophy and later literature. Chronos is frequently confused with, or perhaps consciously identified with, the Titan Cronus in antiquity due to the similarity in names. The identification became more widespread during the Renaissance, giving rise to the iconography of Father Time wielding the harvesting scythe. Greco-Roman mosaics depicted Chronos as a man turning the zodiac wheel. He is comparable to the deity Aion as a symbol of cyclical time. He is usually portrayed as an old callous man with a thick grey beard, personifying the destructive and stifling aspects of time. Name During antiquity, Chronos was occasionally interpreted as Cronus. According to Plutarch, the Greeks believed that Cronus was an allegorical name for Chronos. Mythology In the Orphic tradition, the unaging Chronos was "engendered" by "earth and water", and produced Aether, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmos
The cosmos (, ) is another name for the Universe. Using the word ''cosmos'' implies viewing the universe as a complex and orderly system or entity. The cosmos, and understandings of the reasons for its existence and significance, are studied in cosmologya broad discipline covering scientific, religious or philosophical aspects of the cosmos and its nature. Religious and philosophical approaches may include the cosmos among spiritual entities or other matters deemed to exist outside the physical universe. Etymology The philosopher Pythagoras first used the term ''kosmos'' ( grc, κόσμος, Latinized ''kósmos'') for the order of the universe. Greek κόσμος "order, good order, orderly arrangement" is a word with several main senses rooted in those notions. The verb κοσμεῖν (''κοσμεῖν'') meant generally "to dispose, prepare", but especially "to order and arrange (troops for battle), to set (an army) in array"; also "to establish (a government or regime) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homer
Homer (; grc, Ὅμηρος , ''Hómēros'') (born ) was a Greek poet who is credited as the author of the ''Iliad'' and the ''Odyssey'', two epic poems that are foundational works of ancient Greek literature. Homer is considered one of the most revered and influential authors in history. Homer's ''Iliad'' centers on a quarrel between King Agamemnon and the warrior Achilles during the last year of the Trojan War. The ''Odyssey'' chronicles the ten-year journey of Odysseus, king of Ithaca, back to his home after the fall of Troy. The poems are in Homeric Greek, also known as Epic Greek, a literary language which shows a mixture of features of the Ionic and Aeolic dialects from different centuries; the predominant influence is Eastern Ionic. Most researchers believe that the poems were originally transmitted orally. Homer's epic poems shaped aspects of ancient Greek culture and education, fostering ideals of heroism, glory, and honor. To Plato, Homer was simply the one who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Five Pointed Star Lined
5 is a number, numeral, and glyph. 5, five or number 5 may also refer to: * AD 5, the fifth year of the AD era * 5 BC, the fifth year before the AD era Literature * ''5'' (visual novel), a 2008 visual novel by Ram * ''5'' (comics), an award-winning comics anthology * ''No. 5'' (manga), a Japanese manga by Taiyō Matsumoto * The Famous Five (novel series), a series of children's adventure novels written by English author Enid Blyton Films * ''Five'' (1951 film), a post-apocalyptic film * ''Five'' (2003 film), an Iranian documentary by Abbas Kiarostami * ''Five'' (2011 film), a comedy-drama television film * ''Five'' (2016 film), a French comedy film * Number 5, the protagonist in the film ''Short Circuit'' (1986 film) Television and radio * 5 (TV channel), a television network in the Philippines (currently known as TV5 from 2008 to 2018 and again since 2020), owned by TV5 Network, Inc. * Channel 5 (British TV channel), British free-to-air television network sometime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odyssey
The ''Odyssey'' (; grc, Ὀδύσσεια, Odýsseia, ) is one of two major Ancient Greek literature, ancient Greek Epic poetry, epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by modern audiences. As with the ''Iliad'', the poem is divided into 24 books. It follows the Greek hero cult, Greek hero Odysseus, king of Homer's Ithaca, Ithaca, and his journey home after the Trojan War. After the war, which lasted ten years, his journey lasted for ten additional years, during which time he encountered many perils and all his crew mates were killed. In his absence, Odysseus was assumed dead, and his wife Penelope and son Telemachus had to contend with a Suitors of Penelope, group of unruly suitors who were competing for Penelope's hand in marriage. The ''Odyssey'' was originally composed in Homeric Greek in around the 8th or 7th century BCE and, by the mid-6th century BCE, had become part of the Greek literary canon. In Classic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmogony
Cosmogony is any model concerning the origin of the cosmos or the universe. Overview Scientific theories In astronomy, cosmogony refers to the study of the origin of particular astrophysical objects or systems, and is most commonly used in reference to the origin of the universe, the Solar System, or the Earth–Moon system. The prevalent cosmological model of the early development of the universe is the Big Bang theory. Sean M. Carroll, who specializes in theoretical cosmology and field theory, explains two competing explanations for the origins of the singularity, which is the center of a space in which a characteristic is limitless. (One example of a singularity is the singularity of a black hole, where gravity becomes infinite.) It is generally accepted that the universe began at a point of singularity. When the singularity of the universe started to expand, the Big Bang occurred, which evidently began the universe. The other explanation, held by proponents such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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