An entity is something that exists as itself. It does not need to be of material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also no presumption that an entity is animate , or present .
125-463: The term is broad in scope and may refer to animals; natural features such as mountains; inanimate objects such as tables; numbers or sets as symbols written on a paper; human contrivances such as laws, corporations and academic disciplines; or supernatural beings such as gods and spirits. The adjectival form is entitative . The word entity is derived from the Latin entitas , which in turn derives from
250-574: A deity or other supernatural entity or entities. Some religions have religious texts which they view as divinely or supernaturally revealed or inspired. For instance, Orthodox Jews , Christians and Muslims believe that the Torah was received from Yahweh on biblical Mount Sinai . Most Christians believe that both the Old Testament and the New Testament were inspired by God. Muslims believe
375-486: A non-physical entity ; such as a ghost , fairy , jinn or angel . The concepts of a person's spirit and soul , often also overlap, as both are either contrasted with or given ontological priority over the body and both are believed to survive bodily death in some religions, and "spirit" can also have the sense of " ghost ", i.e. a manifestation of the spirit of a deceased person. In English Bibles , "the Spirit" (with
500-720: A polytheistic religion)", or anything revered as divine. C. Scott Littleton defines a deity as "a being with powers greater than those of ordinary humans, but who interacts with humans, positively or negatively, in ways that carry humans to new levels of consciousness , beyond the grounded preoccupations of ordinary life." A male deity is a god , while a female deity is a goddess . Religions can be categorized by how many deities they worship. Monotheistic religions accept only one deity (predominantly referred to as God), polytheistic religions accept multiple deities. Henotheistic religions accept one supreme deity without denying other deities, considering them as equivalent aspects of
625-455: A semi-deity or other strange kind of being, such as this discourse examines the notion of. And besides these more absolute acceptions, if I may so call them, of the word nature , it has divers others (more relative), as nature is wont to be set or in opposition or contradistinction to other things, as when we say of a stone when it falls downwards that it does it by a natural motion , but that if it be thrown upwards its motion that way
750-498: A body of liquid on the surface of a world that is localized to the bottom of basin (another type of landform or terrain feature; that is, it is not global) and moves slowly if it moves at all. On Earth, a body of water is considered a lake when it is inland, not part of the ocean, is larger and deeper than a pond, and is fed by a river. The only world other than Earth known to harbor lakes is Titan , Saturn's largest moon, which has lakes of ethane , most likely mixed with methane . It
875-449: A body, especially a living one, as when physicians say that nature is strong or weak or spent, or that in such or such diseases nature left to herself will do the cure . Sometimes we take nature for the universe , or system of the corporeal works of God , as when it is said of a phoenix , or a chimera , that there is no such thing in nature , i.e. in the world. And sometimes too, and that most commonly, we would express by nature
1000-421: A by-product of the doctrine of creation ex nihilo . In process thought, there is no such thing as a realm of the natural in contrast to that which is supernatural. On the other hand, if "the natural" is defined more neutrally as "what is in the nature of things," then process metaphysics characterizes the natural as the creative activity of actual entities. In Whitehead's words, "It lies in the nature of things that
1125-626: A capital "S"), specifically denotes the Holy Spirit . Spirit is often used metaphysically to refer to the consciousness or personality . Historically, it was also used to refer to a "subtle" as opposed to "gross" material substance, as in the famous last paragraph of Sir Isaac Newton 's Principia Mathematica . A demon (from Koine Greek δαιμόνιον daimónion ) is a supernatural and often malevolent being prevalent in religion , occultism , literature , fiction , mythology and folklore . In Ancient Near Eastern religions as well as in
1250-449: A continual basis. The total number of species is in rapid decline. The origin of life on Earth is not well understood, but it is known to have occurred at least 3.5 billion years ago, during the hadean or archean eons on a primordial Earth that had a substantially different environment than is found at present. These life forms possessed the basic traits of self-replication and inheritable traits. Once life had appeared,
1375-513: A degree or two of average global temperature have historically had major effects on the ecological balance, and on the actual geography of the Earth. Geology is the science and study of the solid and liquid matter that constitutes the Earth. The field of geology encompasses the study of the composition, structure , physical properties , dynamics, and history of Earth materials , and the processes by which they are formed, moved, and changed. The field
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#17328445230631500-406: A dependence on the seasonal variation of the weather, and sudden changes lasting only a few years can have a dramatic effect, both on the vegetation and on the animals which depend on its growth for their food. Climate is a measure of the long-term trends in the weather. Various factors are known to influence the climate , including ocean currents, surface albedo , greenhouse gases , variations in
1625-643: A distinction between the natural and the artificial, with the artificial being understood as that which has been brought into being by a human consciousness or a human mind . Depending on the particular context, the term "natural" might also be distinguished from the unnatural or the supernatural . The word nature is borrowed from the Old French nature and is derived from the Latin word natura , or "essential qualities, innate disposition", and in ancient times, literally meant " birth ". In ancient philosophy, natura
1750-578: A dynamic dimension then, especially for Heraclitus ), and has steadily gained currency ever since. Earth is the only planet known to support life , and its natural features are the subject of many fields of scientific research. Within the Solar System , it is third closest to the Sun; it is the largest terrestrial planet and the fifth largest overall. Its most prominent climatic features are its two large polar regions, two relatively narrow temperate zones, and
1875-446: A medieval scholastic of the 12th century, explored causes beyond nature, questioning how certain phenomena could be attributed solely to God. In his writings, he used the term praeter naturam to describe these occurrences. In the scholastic period, Thomas Aquinas classified miracles into three categories: "above nature", "beyond nature" and "against nature". In doing so, he sharpened the distinction between nature and miracles more than
2000-485: A metabolism, a capacity to grow, respond to stimuli, and reproduce. An entity with these properties is generally considered life. However, not every definition of life considers all of these properties to be essential. Human-made analogs of life may also be considered to be life. The biosphere is the part of Earth's outer shell—including land, surface rocks, water, air and the atmosphere—within which life occurs, and which biotic processes in turn alter or transform. From
2125-446: A meteorite collision probably triggered the extinction of the non-avian dinosaurs and other large reptiles, but spared small animals such as mammals . Over the past 66 million years, mammalian life diversified. Several million years ago, a species of small African ape gained the ability to stand upright. The subsequent advent of human life, and the development of agriculture and further civilization allowed humans to affect
2250-435: A minority of Fungi . These life forms are found in almost every location on the Earth where there is liquid water, including in the Earth's interior. Their reproduction is both rapid and profuse. The combination of a high mutation rate and a horizontal gene transfer ability makes them highly adaptable, and able to survive in new and sometimes very harsh environments, including outer space . They form an essential part of
2375-400: A more social character, usually in a religious context, as seen in traditional African medicine . Fortune-telling, on the other hand, is a more everyday practice for personal purposes. Particular divination methods vary by culture and religion. Divination is dismissed by the scientific community and skeptics as being superstition . In the 2nd century, Lucian devoted a witty essay to
2500-404: A physical system by a subject without any known intermediate energy or instrumentation" (1945:305). Views on the "supernatural" vary, for example it may be seen as: Anthropological studies across cultures indicate that people do not hold or use natural and supernatural explanations in a mutually exclusive or dichotomous fashion. Instead, the reconciliation of natural and supernatural explanations
2625-436: A pond from many other aquatic terrain features, such as stream pools and tide pools . A river is a natural watercourse , usually freshwater , flowing towards an ocean, a lake, a sea or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including stream, creek, brook, rivulet, and rill; there
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#17328445230632750-445: A querent should proceed by reading signs, events, or omens , or through alleged contact with a supernatural agency. Divination can be seen as a systematic method with which to organize what appear to be disjointed, random facets of existence such that they provide insight into a problem at hand. If a distinction is to be made between divination and fortune-telling , divination has a more formal or ritualistic element and often contains
2875-407: A spiritual entity that may be conjured and controlled. Magic or sorcery is the use of rituals , symbols , actions, gestures , or language with the aim of utilizing supernatural forces. Belief in and practice of magic has been present since the earliest human cultures and continues to have an important spiritual, religious and medicinal role in many cultures today. The term magic has
3000-450: A stone let fall in the air is by nature carried towards the centre of the earth , and, on the contrary, that fire or flame does naturally move upwards toward firmament . Sometimes we understand by nature the established course of things, as when we say that nature makes the night succeed the day , nature hath made respiration necessary to the life of men. Sometimes we take nature for an aggregate of powers belonging to
3125-404: A supernatural entity reported as being present during the event is called a vision . Direct conversations between the recipient and the supernatural entity, or physical marks such as stigmata , have been reported. In rare cases, such as that of Saint Juan Diego , physical artifacts accompany the revelation. The Roman Catholic concept of interior locution includes just an inner voice heard by
3250-399: A variety of biotic and abiotic components that function in an interrelated way. The structure and composition is determined by various environmental factors that are interrelated. Variations of these factors will initiate dynamic modifications to the ecosystem. Some of the more important components are soil , atmosphere , radiation from the sun , water, and living organisms. Central to
3375-438: A variety of meanings, and there is no widely agreed upon definition of what it is. Scholars of religion have defined magic in different ways. One approach, associated with the anthropologists Edward Tylor and James G. Frazer , suggests that magic and science are opposites. An alternative approach, associated with the sociologists Marcel Mauss and Emile Durkheim , argues that magic takes place in private, while religion
3500-503: A variety of ways – masculine, feminine, androgynous and gender neutral. Historically, many ancient cultures – such as Ancient India , Ancient Iraq , Ancient Egyptian , Ancient Greek , Ancient Roman , Nordic and Asian culture – personified natural phenomena , variously as either their conscious causes or simply their effects, respectively. Some Avestan and Vedic deities were viewed as ethical concepts. In Indian religions , deities have been envisioned as manifesting within
3625-493: A wide equatorial tropical to subtropical region. Precipitation varies widely with location, from several metres of water per year to less than a millimetre. 71 percent of the Earth's surface is covered by salt-water oceans. The remainder consists of continents and islands, with most of the inhabited land in the Northern Hemisphere . Earth has evolved through geological and biological processes that have left traces of
3750-469: Is hypernymic to religion . Religions are standardized supernaturalist worldviews, or at least more complete than single supernaturalist views. Supernaturalism is the adherence to the supernatural (beliefs, and not violations of causality and the physical laws). Occurring as both an adjective and a noun , antecedents of the modern English compound supernatural enter the language from two sources: via Middle French ( supernaturel ) and directly from
3875-453: Is violent . So chemists distinguish vitriol into natural and fictitious , or made by art, i.e. by the intervention of human power or skill; so it is said that water , kept suspended in a sucking pump, is not in its natural place, as that is which is stagnant in the well. We say also that wicked men are still in the state of nature , but the regenerate in a state of grace ; that cures wrought by medicines are natural operations; but
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4000-489: Is a chemical substance that is composed of hydrogen and oxygen (H2O) and is vital for all known forms of life. In typical usage, "water" refers only to its liquid form , but it also has a solid state, ice , and a gaseous state, water vapor , or steam . Water covers 71% of the Earth 's surface. On Earth, it is found mostly in oceans and other large bodies of water, with 1.6% of water below ground in aquifers and 0.001% in
4125-433: Is a combination of extensive evidence of something not occurring , combined with an underlying scientific theory , very successful in making predictions, whose assumptions lead logically to the conclusion that something is impossible. While an impossibility assertion in natural science can never be absolutely proved, it could be refuted by the observation of a single counterexample . Such a counterexample would require that
4250-485: Is a communal and organised activity. Many scholars of religion have rejected the utility of the term magic and it has become increasingly unpopular within scholarship since the 1990s. The term magic comes from the Old Persian magu , a word that applied to a form of religious functionary about which little is known. During the late sixth and early fifth centuries BC, this term was adopted into Ancient Greek , where it
4375-454: Is a major academic discipline , and is also important for mineral and hydrocarbon extraction, knowledge about and mitigation of natural hazards , some Geotechnical engineering fields, and understanding past climates and environments. The geology of an area evolves through time as rock units are deposited and inserted and deformational processes change their shapes and locations. Rock units are first emplaced either by deposition onto
4500-407: Is a school of thought influenced by the metaphysical process philosophy of Alfred North Whitehead (1861–1947) and further developed by Charles Hartshorne (1897–2000). It is not possible, in process metaphysics, to conceive divine activity as a "supernatural" intervention into the "natural" order of events. Process theists usually regard the distinction between the supernatural and the natural as
4625-564: Is called a microecosystem . For example, a microsystem can be a stone and all the life under it. A macroecosystem might involve a whole ecoregion , with its drainage basin . Wilderness is generally defined as areas that have not been significantly modified by human activity. Wilderness areas can be found in preserves, estates, farms, conservation preserves, ranches, national forests , national parks , and even in urban areas along rivers, gulches, or otherwise undeveloped areas. Wilderness areas and protected parks are considered important for
4750-495: Is defined in the Journal of Parapsychology as "personal factors or processes in nature which transcend accepted laws" (1948: 311) and "which are non-physical in nature" (1962:310), and it is used to cover both extrasensory perception (ESP), an "awareness of or response to an external event or influence not apprehended by sensory means" (1962:309) or inferred from sensory knowledge, and psychokinesis (PK), "the direct influence exerted on
4875-473: Is estimated to have formed 4.54 billion years ago from the solar nebula , along with the Sun and other planets . The Moon formed roughly 20 million years later. Initially molten, the outer layer of the Earth cooled, resulting in the solid crust. Outgassing and volcanic activity produced the primordial atmosphere. Condensing water vapor , most or all of which came from ice delivered by comets , produced
5000-489: Is found in many ancient cultures, and a belief in rebirth/ metempsychosis was held by Greek historic figures, such as Pythagoras , Socrates and Plato . It is also a common belief of various ancient and modern religions such as Spiritism , Theosophy and Eckankar and as an esoteric belief in many streams of Orthodox Judaism . It is found as well in many tribal societies around the world, in places such as Australia , East Asia , Siberia and South America . Although
5125-410: Is independent of the changes of its attributes . It represents long-lived information relevant for the users and is usually stored in a database . Supernatural Supernatural refers to phenomena or entities that are beyond the laws of nature . The term is derived from Medieval Latin supernaturalis , from Latin super- (above, beyond, or outside of) + natura (nature). Although
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5250-414: Is known as " angelology ". In fine art , angels are usually depicted as having the shape of human beings of extraordinary beauty; they are often identified using the symbols of bird wings , halos and light . Prophecy involves a process in which messages are communicated by a god to a prophet . Such messages typically involve inspiration, interpretation, or revelation of divine will concerning
5375-493: Is mostly used as the Latin translation of the Greek word physis (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe , is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socratic philosophers (though this word had
5500-510: Is natural or ordinary; unnaturally or extraordinarily great; abnormal, extraordinary". Obsolete uses include "of, relating to, or dealing with metaphysics ". As a noun, the term can mean "a supernatural being", with a particularly strong history of employment in relation to entities from the mythologies of the indigenous peoples of the Americas . The ancient world had no word that resembled "supernatural". Dialogues from Neoplatonic philosophy in
5625-529: Is no general rule that defines what can be called a river. Many names for small rivers are specific to geographic location; one example is Burn in Scotland and North-east England. Sometimes a river is said to be larger than a creek, but this is not always the case, due to vagueness in the language. A river is part of the hydrological cycle . Water within a river is generally collected from precipitation through surface runoff , groundwater recharge, springs , and
5750-504: Is no universal agreement on the definition of life, scientists generally accept that the biological manifestation of life is characterized by organization , metabolism , growth , adaptation , response to stimuli , and reproduction . Life may also be said to be simply the characteristic state of organisms . Present day organisms from viruses to humans possess a self-replicating informational molecule (genome), either DNA or RNA (as in some viruses), and such an informational molecule
5875-471: Is normal and pervasive across cultures. Cross cultural studies indicate that there is coexistence of natural and supernatural explanations in both adults and children for explaining numerous things about the world, such as illness, death, and origins. Context and cultural input play a large role in determining when and how individuals incorporate natural and supernatural explanations. The coexistence of natural and supernatural explanations in individuals may be
6000-415: Is not known if Titan's lakes are fed by rivers, though Titan's surface is carved by numerous river beds. Natural lakes on Earth are generally found in mountainous areas, rift zones , and areas with ongoing or recent glaciation . Other lakes are found in endorheic basins or along the courses of mature rivers. In some parts of the world, there are many lakes because of chaotic drainage patterns left over from
6125-402: Is possible within the boundaries of the laws of physics. Epistemologically , the relationship between the supernatural and the natural is indistinct in terms of natural phenomena that, ex hypothesi, violate the laws of nature, in so far as such laws are realistically accountable . Parapsychologists use the term psi to refer to an assumed unitary force underlying the phenomena they study. Psi
6250-503: Is probably intrinsic to life. It is likely that the earliest forms of life were based on a self-replicating informational molecule ( genome ), perhaps RNA or a molecule more primitive than RNA or DNA. The specific deoxyribonucleotide / ribonucleotide sequence in each currently extant individual organism contains sequence information that functions to promotes survival, reproduction , and the capacity to acquire resources necessary for reproduction, and such sequences probably emerged early in
6375-473: Is that there is disagreement about the definition of "natural" and the limits of naturalism . Concepts in the supernatural domain are closely related to concepts in religious spirituality and occultism or spiritualism . For sometimes we use the word nature for that Author of nature whom the schoolmen , harshly enough, call natura naturans , as when it is said that nature hath made man partly corporeal and partly immaterial . Sometimes we mean by
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#17328445230636500-470: Is the philosophical or religious concept that an aspect of a living being starts a new life in a different physical body or form after each biological death . It is also called rebirth or transmigration , and is a part of the Saṃsāra doctrine of cyclic existence. It is a central tenet of all major Indian religions , namely Jainism , Hinduism , Buddhism and Sikhism . The idea of reincarnation
6625-417: Is used as term for territorial divisions of some countries (e.g. Bosnia and Herzegovina ). In medicine, a disease entity is an illness due to a particular definite cause or to a specific pathological process. While a disease entity is not defined by a syndrome , it may or may not be manifest in one or more particular syndromes. In computer science , an entity is an object that has an identity , which
6750-453: The Abrahamic traditions , including ancient and medieval Christian demonology , a demon is considered a harmful spiritual entity, below the heavenly planes which may cause demonic possession , calling for an exorcism . In Western occultism and Renaissance magic , which grew out of an amalgamation of Greco-Roman magic , Jewish Aggadah and Christian demonology , a demon is believed to be
6875-760: The Indian Ocean , the Southern Ocean , and the Arctic Ocean . Smaller regions of the oceans are called seas, gulfs, bays and other names. There are also salt lakes , which are smaller bodies of landlocked saltwater that are not interconnected with the World Ocean. Two notable examples of salt lakes are the Aral Sea and the Great Salt Lake . A lake (from Latin word lacus ) is a terrain feature (or physical feature ),
7000-506: The Industrial Revolution , nature increasingly became seen as the part of reality deprived from intentional intervention: it was hence considered as sacred by some traditions ( Rousseau , American transcendentalism ) or a mere decorum for divine providence or human history ( Hegel , Marx ). However, a vitalist vision of nature, closer to the pre-Socratic one, got reborn at the same time, especially after Charles Darwin . Within
7125-646: The Neoproterozoic era, freezing temperatures covered much of the Earth in glaciers and ice sheets. This hypothesis has been termed the " Snowball Earth ", and it is of particular interest as it precedes the Cambrian explosion in which multicellular life forms began to proliferate about 530–540 million years ago. Since the Cambrian explosion there have been five distinctly identifiable mass extinctions . The last mass extinction occurred some 66 million years ago, when
7250-449: The Northern and Southern Hemispheres experience opposite seasons. Weather is a chaotic system that is readily modified by small changes to the environment , so accurate weather forecasting is limited to only a few days. Overall, two things are happening worldwide: (1) temperature is increasing on the average; and (2) regional climates have been undergoing noticeable changes. Water
7375-545: The Quran was revealed by God to Muhammad word by word through the angel Gabriel ( Jibril ). In Hinduism , some Vedas are considered apauruṣeya , "not human compositions", and are supposed to have been directly revealed, and thus are called śruti , "what is heard". Aleister Crowley stated that The Book of the Law had been revealed to him through a higher being that called itself Aiwass . A revelation communicated by
7500-613: The Roman era as well as the Indian religions, have been the subject of recent scholarly research. Unity Church and its founder Charles Fillmore teaches reincarnation. In recent decades, many Europeans and North Americans have developed an interest in reincarnation, and many contemporary works mention it. Karma ( / ˈ k ɑːr m ə / ; Sanskrit : कर्म , romanized : karma , IPA: [ˈkɐɽmɐ] ; Pali : kamma ) means action, work or deed; it also refers to
7625-567: The World Ocean or global ocean. This concept of a global ocean as a continuous body of water with relatively free interchange among its parts is of fundamental importance to oceanography . The major oceanic divisions are defined in part by the continents , various archipelagos , and other criteria: these divisions are (in descending order of size) the Pacific Ocean , the Atlantic Ocean ,
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#17328445230637750-483: The afterlife , or in exceptional cases enter heaven alive . Heaven is often described as a "higher place", the holiest place, a Paradise , in contrast to hell or the Underworld or the "low places" and universally or conditionally accessible by earthly beings according to various standards of divinity , goodness , piety , faith , or other virtues or right beliefs or simply the will of God . Some believe in
7875-422: The air as vapor , clouds, and precipitation . Oceans hold 97% of surface water, glaciers , and polar ice caps 2.4%, and other land surface water such as rivers, lakes, and ponds 0.6%. Additionally, a minute amount of the Earth's water is contained within biological bodies and manufactured products. An ocean is a major body of saline water , and a principal component of the hydrosphere. Approximately 71% of
8000-505: The kingdoms Vegetabilia (later Plantae ) and Animalia . Since then, it has become clear that the Plantae as originally defined included several unrelated groups, and the fungi and several groups of algae were removed to new kingdoms. However, these are still often considered plants in many contexts. Bacterial life is sometimes included in flora, and some classifications use the term bacterial flora separately from plant flora . Among
8125-738: The last ice age . All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them. A pond is a body of standing water , either natural or human-made, that is usually smaller than a lake. A wide variety of human-made bodies of water are classified as ponds, including water gardens designed for aesthetic ornamentation, fish ponds designed for commercial fish breeding, and solar ponds designed to store thermal energy. Ponds and lakes are distinguished from streams via current speed. While currents in streams are easily observed, ponds and lakes possess thermally driven micro-currents and moderate wind driven currents. These features distinguish
8250-404: The laws , elements and phenomena of the physical world, including life . Although humans are part of nature, human activity or humans as a whole are often described as at times at odds, or outright separate and even superior to nature. During the advent of modern scientific method in the last several centuries, nature became the passive reality , organized and moved by divine laws. With
8375-503: The miraculous ones wrought by Christ and his apostles were supernatural . Nomological possibility is possibility under the actual laws of nature . Most philosophers since David Hume have held that the laws of nature are metaphysically contingent—that there could have been different natural laws than the ones that actually obtain. If so, then it would not be logically or metaphysically impossible, for example, for you to travel to Alpha Centauri in one day; it would just have to be
8500-433: The nature of a thing the essence , or that which the schoolmen scruple not to call the quiddity of a thing, namely, the attribute or attributes on whose score it is what it is, whether the thing be corporeal or not, as when we attempt to define the nature of an angle , or of a triangle , or of a fluid body, as such. Sometimes we take nature for an internal principle of motion , as when we say that
8625-457: The tropical climate at the equator to the polar climate in the northern and southern extremes. Weather is also influenced by the seasons, which result from the Earth 's axis being tilted relative to its orbital plane . Thus, at any given time during the summer or winter, one part of the Earth is more directly exposed to the rays of the sun . This exposure alternates as the Earth revolves in its orbit. At any given time, regardless of season,
8750-400: The Earth is held in place by gravity. Air is mostly nitrogen , oxygen , water vapor , with much smaller amounts of carbon dioxide, argon, etc. The atmospheric pressure declines steadily with altitude. The ozone layer plays an important role in depleting the amount of ultraviolet (UV) radiation that reaches the surface. As DNA is readily damaged by UV light, this serves to protect life at
8875-573: The Earth more rapidly than any previous life form, affecting both the nature and quantity of other organisms as well as global climate. By comparison, the Great Oxygenation Event , produced by the proliferation of algae during the Siderian period, required about 300 million years to culminate. The present era is classified as part of a mass extinction event , the Holocene extinction event,
9000-552: The Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 feet) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt. Though generally recognized as several 'separate' oceans, these waters comprise one global, interconnected body of salt water often referred to as
9125-410: The Latin ens meaning "being" or "existing" (compare English essence ). Entity may hence literally be taken to mean "thing which exists". Ontology is the study of concepts of existence, and of recognition of entities. The words ontic and entity are derived respectively from the ancient Greek and Latin present participles that mean " being ". In an ontic inquiry... one asks about the properties or
9250-603: The Middle Ages, although in the early modern period Italian humanists reinterpreted the term in a positive sense to establish the idea of natural magic . Both negative and positive understandings of the term were retained in Western culture over the following centuries, with the former largely influencing early academic usages of the word. Throughout history, there have been examples of individuals who practiced magic and referred to themselves as magicians. This trend has proliferated in
9375-646: The Middle French's term's ancestor, post- Classical Latin ( supernaturalis ). Post-classical Latin supernaturalis first occurs in the 6th century, composed of the Latin prefix super- and nātūrālis (see nature ). The earliest known appearance of the word in the English language occurs in a Middle English translation of Catherine of Siena 's Dialogue ( orcherd of Syon , around 1425; Þei haue not þanne þe supernaturel lyȝt ne þe liȝt of kunnynge, bycause þei vndirstoden it not ). The semantic value of
9500-479: The assumptions underlying the theory that implied the impossibility be re-examined. Some philosophers, such as Sydney Shoemaker , have argued that the laws of nature are in fact necessary, not contingent; if so, then nomological possibility is equivalent to metaphysical possibility. The term supernatural is often used interchangeably with paranormal or preternatural —the latter typically limited to an adjective for describing abilities which appear to exceed what
9625-477: The biosphere. Over nine-tenths of the total biomass on Earth is plant life, on which animal life depends very heavily for its existence. More than 2 million species of plant and animal life have been identified to date, and estimates of the actual number of existing species range from several million to well over 50 million. The number of individual species of life is constantly in some degree of flux, with new species appearing and others ceasing to exist on
9750-446: The broadest geophysiological point of view, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere (rocks), hydrosphere (water), and atmosphere (air). The entire Earth contains over 75 billion tons (150 trillion pounds or about 6.8×10 kilograms) of biomass (life), which lives within various environments within
9875-434: The career of a charlatan , " Alexander the false prophet ", trained by "one of those who advertise enchantments, miraculous incantations, charms for your love-affairs, visitations for your enemies, disclosures of buried treasure and successions to estates". Nature Nature is an inherent character or constitution, particularly of the ecosphere or the universe as a whole. In this general sense nature refers to
10000-425: The case that you could travel faster than the speed of light. But of course there is an important sense in which this is not nomologically possible; given that the laws of nature are what they are. In the philosophy of natural science , impossibility assertions come to be widely accepted as overwhelmingly probable rather than considered proved to the point of being unchallengeable. The basis for this strong acceptance
10125-439: The concept of the soul of the deceased making its own journey to the underworld, with the dead needing to be taken across a defining obstacle such as a lake or a river to reach this destination. Imagery of such journeys can be found in both ancient and modern art. The descent to the underworld has been described as "the single most important myth for Modernist authors". A spirit is a supernatural being, often but not exclusively
10250-719: The corollary term "nature" has had multiple meanings since the ancient world, the term "supernatural" emerged in the Middle Ages and did not exist in the ancient world. The supernatural is featured in folklore and religious contexts, but can also feature as an explanation in more secular contexts, as in the cases of superstitions or belief in the paranormal . The term is attributed to non-physical entities , such as angels , demons , gods and spirits . It also includes claimed abilities embodied in or provided by such beings, including magic , telekinesis , levitation , precognition and extrasensory perception . The supernatural
10375-522: The creatures cannot do, in traditional theism, in comparison to what they can do in process metaphysics (that is, to be part creators of the world with God). Heaven , or the heavens , is a common religious, cosmological , or transcendent place where beings such as gods , angels , spirits, saints , or venerated ancestors are said to originate, be enthroned , or live. According to the beliefs of some religions, heavenly beings can descend to Earth or incarnate , and earthly beings can ascend to heaven in
10500-409: The early Church Fathers had done. As a result, he had created a dichotomy of sorts of the natural and supernatural. Though the phrase "supra naturam" was used since the 4th century AD, it was in the 1200s that Thomas Aquinas used the term "supernaturalis". Despite this, the term had to wait until the end of the medieval period before it became more popularly used. The discussions on "nature" from
10625-468: The ecosystem concept is the idea that living organisms interact with every other element in their local environment . Eugene Odum, a founder of ecology, stated: "Any unit that includes all of the organisms (ie: the "community") in a given area interacting with the physical environment so that a flow of energy leads to clearly defined trophic structure, biotic diversity, and material cycles (i.e.: exchange of materials between living and nonliving parts) within
10750-553: The equatorial oceans to the polar regions. These currents help to moderate the differences in temperature between winter and summer in the temperate zones. Also, without the redistributions of heat energy by the ocean currents and atmosphere, the tropics would be much hotter, and the polar regions much colder. Weather can have both beneficial and harmful effects. Extremes in weather, such as tornadoes or hurricanes and cyclones , can expend large amounts of energy along their paths, and produce devastation. Surface vegetation has evolved
10875-622: The evolution of life. Survival functions present early in the evolution of life likely also included genomic sequences that promote the avoidance of damage to the self-replicating molecule and also the capability to repair such damages that do occur. Repair of some genome damages may have involved using information from another similar molecule by a process of recombination (a primitive form of sexual interaction ). Properties common to terrestrial organisms (plants, animals, fungi , protists , archaea , and bacteria) are that they are cellular, carbon-and-water-based with complex organization, having
11000-444: The fastest ever to have occurred. Some, such as E. O. Wilson of Harvard University , predict that human destruction of the biosphere could cause the extinction of one-half of all species in the next 100 years. The extent of the current extinction event is still being researched, debated and calculated by biologists. The Earth's atmosphere is a key factor in sustaining the ecosystem . The thin layer of gases that envelops
11125-532: The first primitive life forms. When basic forms of plant life developed the process of photosynthesis the sun's energy could be harvested to create conditions which allowed for more complex life forms. The resultant oxygen accumulated in the atmosphere and gave rise to the ozone layer . The incorporation of smaller cells within larger ones resulted in the development of yet more complex cells called eukaryotes . Cells within colonies became increasingly specialized, resulting in true multicellular organisms. With
11250-414: The geomagnetic field. The atmospheric conditions have been significantly altered from the original conditions by the presence of life-forms, which create an ecological balance that stabilizes the surface conditions. Despite the wide regional variations in climate by latitude and other geographic factors, the long-term average global climate is quite stable during interglacial periods, and variations of
11375-425: The idea of rebirth in many schools of Indian religions (particularly Hinduism , Buddhism , Jainism and Sikhism ) as well as Taoism . In these schools, karma in the present affects one's future in the current life, as well as the nature and quality of future lives – one's saṃsāra . In Catholic theology , the supernatural order is, according to New Advent , defined as "the ensemble of effects exceeding
11500-503: The immediate vicinity of a stream is called a riparian zone . Given the status of the ongoing Holocene extinction , streams play an important corridor role in connecting fragmented habitats and thus in conserving biodiversity . The study of streams and waterways in general involves many branches of inter-disciplinary natural science and engineering, including hydrology , fluvial geomorphology , aquatic ecology , fish biology , riparian ecology , and others. Ecosystems are composed of
11625-406: The initial sequence of rocks has been deposited, the rock units can be deformed and/or metamorphosed . Deformation typically occurs as a result of horizontal shortening, horizontal extension , or side-to-side ( strike-slip ) motion. These structural regimes broadly relate to convergent boundaries , divergent boundaries , and transform boundaries , respectively, between tectonic plates . Earth
11750-655: The majority of denominations within Christianity and Islam do not believe that individuals reincarnate, particular groups within these religions do refer to reincarnation; these groups include the mainstream historical and contemporary followers of Cathars , Alawites , the Druze and the Rosicrucians . The historical relations between these sects and the beliefs about reincarnation that were characteristic of Neoplatonism , Orphism , Hermeticism , Manicheanism and Gnosticism of
11875-429: The many enter into complex unity" (Whitehead 1978, 21). It is tempting to emphasize process theism's denial of the supernatural and thereby highlight that the processed God cannot do in comparison what the traditional God could do (that is, to bring something from nothing). In fairness, however, equal stress should be placed on process theism's denial of the natural (as traditionally conceived) so that one may highlight what
12000-649: The many ways of classifying plants are by regional floras , which, depending on the purpose of study, can also include fossil flora , remnants of plant life from a previous era. People in many regions and countries take great pride in their individual arrays of characteristic flora, which can vary widely across the globe due to differences in climate and terrain . Regional floras commonly are divided into categories such as native flora or agricultural and garden flora . Some types of "native flora" actually have been introduced centuries ago by people migrating from one region or continent to another, and become an integral part of
12125-521: The modern period, with a growing number of magicians appearing within the esoteric milieu. British esotericist Aleister Crowley described magic as the art of effecting change in accordance with will. Divination (from Latin divinare "to foresee, to be inspired by a god", related to divinus , divine ) is the attempt to gain insight into a question or situation by way of an occultic , standardized process or ritual. Used in various forms throughout history, diviners ascertain their interpretations of how
12250-461: The native, or natural flora of the place to which they were introduced. This is an example of how human interaction with nature can blur the boundary of what is considered nature. Another category of plant has historically been carved out for weeds . Though the term has fallen into disfavor among botanists as a formal way to categorize "useless" plants, the informal use of the word "weeds" to describe those plants that are deemed worthy of elimination
12375-619: The oceans and other water sources. The highly energetic chemistry is believed to have produced a self-replicating molecule around 4 billion years ago. Continents formed, then broke up and reformed as the surface of Earth reshaped over hundreds of millions of years, occasionally combining to make a supercontinent . Roughly 750 million years ago, the earliest known supercontinent Rodinia , began to break apart. The continents later recombined to form Pannotia which broke apart about 540 million years ago, then finally Pangaea , which broke apart about 180 million years ago. During
12500-420: The original conditions. The outer surface is divided into several gradually migrating tectonic plates . The interior remains active, with a thick layer of plastic mantle and an iron-filled core that generates a magnetic field . This iron core is composed of a solid inner phase, and a fluid outer phase. Convective motion in the core generates electric currents through dynamo action, and these, in turn, generate
12625-478: The outcomes two distinct cognitive domains: one concerned with the physical-mechanical relations and another with social relations. Studies on indigenous groups have allowed for insights on how such coexistence of explanations may function. A deity ( / ˈ d iː ə t i / or / ˈ d eɪ . ə t i / ) is a supernatural being considered divine or sacred . The Oxford Dictionary of English defines deity as "a god or goddess (in
12750-464: The ozone layer absorbing harmful ultraviolet radiation , life colonized the surface of Earth. The first form of life to develop on the Earth were unicellular , and they remained the only form of life until about a billion years ago when multi-cellular organisms began to appear. Microorganisms or microbes are microscopic , and smaller than the human eye can see. Microorganisms can be single-celled , such as Bacteria , Archaea , many Protista , and
12875-438: The physical relations and structures peculiar to some entity – in the pen's case, for example, we might make the following ontic observations about it: it is black, full of blue ink, and sitting on top of my desk. In law , a legal entity is an entity that is capable of bearing legal rights and obligations , such as a natural person or an artificial person (e.g. business entity or a corporate entity). In politics , entity
13000-441: The planetary ecosystem. However, some microorganisms are pathogenic and can post health risk to other organisms. Viruses are infectious agents , but they are not autonomous life forms , as it is the case for viroids , satellites , DPIs and prions . Originally Aristotle divided all living things between plants, which generally do not move fast enough for humans to notice, and animals. In Linnaeus ' system, these became
13125-493: The possibility of a heaven on Earth in a world to come . Another belief is in an axis mundi or world tree which connects the heavens, the terrestrial world and the underworld . In Indian religions , heaven is considered as Svarga loka , and the soul is again subjected to rebirth in different living forms according to its karma . This cycle can be broken after a soul achieves Moksha or Nirvana . Any place of existence, either of humans, souls or deities, outside
13250-404: The powers of the created universe and gratuitously produced by God for the purpose of raising the rational creature above its native sphere to a God-like life and destiny." The Modern Catholic Dictionary defines it as "the sum total of heavenly destiny and all the divinely established means of reaching that destiny, which surpass the mere powers and capacities of human nature." Process theology
13375-411: The process of evolution by natural selection resulted in the development of ever-more diverse life forms. Species that were unable to adapt to the changing environment and competition from other life forms became extinct. However, the fossil record retains evidence of many of these older species. Current fossil and DNA evidence shows that all existing species can trace a continual ancestry back to
13500-436: The prophet's social world and events to come (compare divine knowledge ). Prophecy is not limited to any one culture. It is a common property to all known ancient societies around the world, some more than others. Many systems and rules about prophecy have been proposed over several millennia. In religion and theology , revelation is the revealing or disclosing of some form of truth or knowledge through communication with
13625-488: The recipient. In the Abrahamic religions , the term is used to refer to the process by which God reveals knowledge of himself, his will and his divine providence to the world of human beings. In secondary usage, revelation refers to the resulting human knowledge about God, prophecy and other divine things. Revelation from a supernatural source plays a less important role in some other religious traditions such as Buddhism , Confucianism and Taoism . Reincarnation
13750-521: The release of stored water in natural ice and snowpacks (i.e., from glaciers ). A stream is a flowing body of water with a current , confined within a bed and stream banks . In the United States, a stream is classified as a watercourse less than 60 feet (18 metres) wide. Streams are important as conduits in the water cycle , instruments in groundwater recharge , and they serve as corridors for fish and wildlife migration. The biological habitat in
13875-560: The same divine principle; and nontheistic religions deny any supreme eternal creator deity but accept a pantheon of deities which live, die and are reborn just like any other being. Various cultures have conceptualized a deity differently than a monotheistic God . A deity need not be omnipotent , omnipresent , omniscient , omnibenevolent or eternal , The monotheistic God, however, does have these attributes . Monotheistic religions typically refer to God in masculine terms, while other religions refer to their deities in
14000-435: The scholastic period were diverse and unsettled with some postulating that even miracles are natural and that natural magic was a natural part of the world. The metaphysical considerations of the existence of the supernatural can be difficult to approach as an exercise in philosophy or theology because any dependencies on its antithesis, the natural , will ultimately have to be inverted or rejected. One complicating factor
14125-418: The solar luminosity, and changes to the Earth's orbit. Based on historical and geological records, the Earth is known to have undergone drastic climate changes in the past, including ice ages . The climate of a region depends on a number of factors, especially latitude . A latitudinal band of the surface with similar climatic attributes forms a climate region. There are a number of such regions, ranging from
14250-406: The spiritual principle of cause and effect where intent and actions of an individual (cause) influence the future of that individual (effect). Good intent and good deeds contribute to good karma and future happiness, while bad intent and bad deeds contribute to bad karma and future suffering. With origins in ancient India 's Vedic civilization , the philosophy of karma is closely associated with
14375-419: The surface or intrude into the overlying rock . Deposition can occur when sediments settle onto the surface of the Earth and later lithify into sedimentary rock , or when as volcanic material such as volcanic ash or lava flows, blanket the surface. Igneous intrusions such as batholiths , laccoliths , dikes , and sills , push upwards into the overlying rock, and crystallize as they intrude. After
14500-425: The surface. The atmosphere also retains heat during the night, thereby reducing the daily temperature extremes. Terrestrial weather occurs almost exclusively in the lower part of the atmosphere , and serves as a convective system for redistributing heat. Ocean currents are another important factor in determining climate, particularly the major underwater thermohaline circulation which distributes heat energy from
14625-535: The survival of certain species , ecological studies, conservation , and solitude. Some nature writers believe wilderness areas are vital for the human spirit and creativity, and some ecologists consider wilderness areas to be an integral part of the Earth's self-sustaining natural ecosystem (the biosphere ). They may also preserve historic genetic traits and that they provide habitat for wild flora and fauna that may be difficult or impossible to recreate in zoos , arboretums , or laboratories . Although there
14750-441: The system is an ecosystem." Within the ecosystem, species are connected and dependent upon one another in the food chain , and exchange energy and matter between themselves as well as with their environment. The human ecosystem concept is based on the human/nature dichotomy and the idea that all species are ecologically dependent on each other, as well as with the abiotic constituents of their biotope . A smaller unit of size
14875-475: The tangible world (Heaven, Hell, or other) is referred to as otherworld . The underworld is the supernatural world of the dead in various religious traditions, located below the world of the living. Chthonic is the technical adjective for things of the underworld. The concept of an underworld is found in almost every civilization and "may be as old as humanity itself". Common features of underworld myths are accounts of living people making journeys to
15000-1130: The temple of every living being's body, as sensory organs and mind. Deities have also been envisioned as a form of existence ( Saṃsāra ) after rebirth , for human beings who gain merit through an ethical life, where they become guardian deities and live blissfully in heaven , but are also subject to death when their merit runs out. An angel is generally a supernatural being found in various religions and mythologies . In Abrahamic religions and Zoroastrianism , angels are often depicted as benevolent celestial beings who act as intermediaries between God or Heaven and Earth . Other roles of angels include protecting and guiding human beings and carrying out God's tasks. Within Abrahamic religions, angels are often organized into hierarchies , although such rankings may vary between sects in each religion, and are given specific names or titles, such as Gabriel or " Destroying angel ." The term "angel" has also been expanded to various notions of spirits or figures found in other religious traditions. The theological study of angels
15125-423: The term has shifted over the history of its use. Originally the term referred exclusively to Christian understandings of the world. For example, as an adjective, the term can mean "belonging to a realm or system that transcends nature, as that of divine, magical, or ghostly beings; attributed to or thought to reveal some force beyond scientific understanding or the laws of nature; occult, paranormal" or "more than what
15250-456: The third century AD influenced the development of the concept of the supernatural, which later evolved through Christian theology . The term nature had existed since antiquity, with Latin authors like Augustine using the word and its cognates at least 600 times in City of God . In the medieval period, "nature" had ten different meanings and "natural" had eleven different meanings. Peter Lombard ,
15375-448: The underworld , often for some heroic purpose. Other myths reinforce traditions that entrance of souls to the underworld requires a proper observation of ceremony, such as the ancient Greek story of the recently dead Patroclus haunting Achilles until his body could be properly buried for this purpose. Persons having social status were dressed and equipped in order to better navigate the underworld. A number of mythologies incorporate
15500-837: The various uses of the word today, "nature" often refers to geology and wildlife . Nature can refer to the general realm of living beings , and in some cases to the processes associated with inanimate objects—the way that particular types of things exist and change of their own accord, such as the weather and geology of the Earth . It is often taken to mean the " natural environment " or wilderness —wild animals, rocks, forest, and in general those things that have not been substantially altered by human intervention, or which persist despite human intervention. For example, manufactured objects and human interaction generally are not considered part of nature, unless qualified as, for example, "human nature" or "the whole of nature". This more traditional concept of natural things that can still be found today implies
15625-409: Was used with negative connotations, to apply to religious rites that were regarded as fraudulent, unconventional and dangerous. This meaning of the term was then adopted by Latin in the first century BC. The concept was then incorporated into Christian theology during the first century AD, where magic was associated with demons and thus defined against religion. This concept was pervasive throughout
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