|
Aurora Audio
An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of radiant lights that appear as curtains, rays, spirals or dynamic flickers covering the entire sky. Auroras are the result of disturbances in the Earth's magnetosphere caused by enhanced speeds of solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere). The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorological Phenomena
This glossary of meteorology is a list of terms and concepts relevant to meteorology and atmospheric science, their sub-disciplines, and related fields. A B C D E F G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionization
Ionization or ionisation is the process by which an atom or a molecule acquires a negative or positive Electric charge, charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule is called an ion. Ionization can result from the loss of an electron after collisions with subatomic particles, collisions with other atoms, molecules, electrons, positrons, protons, antiprotons, and ions, or through the interaction with electromagnetic radiation. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs. Ionization can occur through radioactive decay by the internal conversion process, in which an excited nucleus transfers its energy to one of the inner-shell electrons causing it to be ejected. Uses Everyday examples of gas ionization occur within a fluorescent lamp or other electrical discharge lamps. It is also used in radiation detectors such as the Geiger- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greco-Roman Mythology
Classical mythology, also known as Greco-Roman mythology or Greek and Roman mythology, is the collective body and study of myths from the ancient Greeks and ancient Romans. Mythology, along with philosophy and political thought, is one of the major survivals of classical antiquity throughout later, including modern, Western culture. The Greek word ''mythos'' refers to the spoken word or speech, but it also denotes a tale, story or narrative. As late as the Roman conquest of Greece during the last two centuries Before the Common Era and for centuries afterwards, the Romans, who already had gods of their own, adopted many mythic narratives directly from the Greeks while preserving their own Roman (Latin) names for the gods. As a result, the actions of many Roman and Greek deities became equivalent in storytelling and literature in modern Western culture. For example, the Roman sky god Jupiter or Jove became equated with his Greek counterpart Zeus; the Roman fertility goddess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anemoi
In ancient Greek religion and Greek mythology, myth, the Anemoi () were wind gods who were each ascribed a cardinal direction from which their respective winds came (see Classical compass winds), and were each associated with various nature, seasons and weather conditions. They were the progeny of the Dawn deities, goddess of the dawn Eos and her husband, the god of the dusk, Astraeus. Etymology The earliest attestation of the word in Greek and of the worship of the winds by the Greeks, are perhaps the Mycenaean Greek word-forms , , , , i.e. "priestess of the winds". These words, written in Linear B, are found on the Knossos, KN Fp 1 and KN Fp 13 tablets. Mythology The Anemoi are minor gods and are subject to Aeolus (Odyssey), Aeolus. They were sometimes represented as wind, gusts of wind, and at other times were personified as winged men. They were also sometimes depicted as horses kept in the stables of the storm god Aeolus, who provided Odysseus with the Anemoi in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreas (god)
Boreas (, , , , ; also , ) is the Greek god of the cold north wind, storms, and winter. Although he was normally taken as the north wind, the Roman writers Aulus Gellius and Pliny the Elder both took Boreas as a northeast wind, equivalent to the Roman god Aquilo or Septentrio. Boreas is depicted as being very strong, with a violent temper to match. He was frequently shown as a winged old man or sometimes as a young man with shaggy hair and beard, holding a conch shell and wearing a billowing cloak. Boreas's most known myth is his abduction of the Athenian princess Orithyia of Athens, Oreithyia. Description Boreas, like the rest of the wind gods, was said to be the son of Eos, the goddess of the dawn, by her husband Astraeus, a minor star-god. He is thus brother to the rest of the Anemoi (the wind gods), the five star-gods and the justice goddess Astraea. Boreas was closely associated with horses, storms, and winter. He was said to have fathered twelve colts, after taking th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurora (mythology)
Aurōra () is the Latin word for dawn, and the goddess of dawn in Roman mythology and Latin poetry. Like Greek mythology, Greek ''Eos'' and Rigvedic deities, Rigvedic ''Ushas'', ''Aurōra'' continues the name of an earlier Proto-Indo-European mythology, Indo-European dawn goddess, ''Hausos''. Name Aurōra stems from Proto-Italic ''*ausōs'', and ultimately from Proto-Indo-European ''*haéusōs'', the "dawn" conceived as divine entity. It has cognates in the goddesses Eos, Ēṓs, Ushas, Uṣas, Aušrinė, Auseklis and Ēostre, Ēastre. Roman mythology In Roman mythology, Aurōra renews herself every morning and flies across the sky, announcing the arrival of the Sun. Her parentage was flexible: for Ovid, she could equally be ''Pallantis'', signifying the daughter of Pallas (Titan), Pallas, or the daughter of Hyperion (mythology), Hyperion. She has two siblings, a brother (Sol (Roman mythology), Sol, the Sun) and a sister (Luna (goddess), Luna, the Moon). Roman writers rarely imi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Gassendi
Pierre Gassendi (; also Pierre Gassend, Petrus Gassendi, Petrus Gassendus; 22 January 1592 – 24 October 1655) was a French philosopher, Catholic priest, astronomer, and mathematician. While he held a church position in south-east France, he also spent much time in Paris, where he was a leader of a group of free-thinking intellectuals. He was also an active observational scientist, publishing the first data on the transit of Mercury in 1631. The lunar crater Gassendi is named after him. He wrote numerous philosophical works, and some of the positions he worked out are considered significant, finding a way between skepticism and dogmatism. Richard Popkin indicates that Gassendi was one of the first thinkers to formulate the modern "scientific outlook", of moderated skepticism and empiricism. He clashed with his contemporary Descartes on the possibility of certain knowledge. His best known intellectual project attempted to reconcile Epicurean atomism with Christianity. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
