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Ariel School
On 16 September 1994, there was a UFO sighting outside Ruwa, Zimbabwe. Sixty-two pupils at the Ariel School aged between six and twelve said that they saw one or more silver craft descend from the sky and land on a field near their school. Some of the children claimed that one or more creatures dressed all in black then approached and telepathically communicated to them a message with an environmental theme, frightening them and causing them to cry. The Fortean writer Jerome Clark has called the incident the “most remarkable close encounter of the third kind of the 1990s”. Some skeptics have described the incident as one of mass hysteria. Not all the children at the school that day stated that they saw something. Several of those that did maintain that their account of the incident is true. Background Ruwa is a small agricultural centre located south-east of the capital Harare. At the time of the incident, it was not a town but only a local place-name, "little more tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unidentified Flying Object
An unidentified flying object (UFO) is an object or phenomenon seen in the sky but not yet identified or explained. The term was coined when United States Air Force (USAF) investigations into flying saucers found too broad a range of shapes reported to consider them all saucers or discs. UFOs are also known as unidentified aerial phenomena or unidentified anomalous phenomena (UAP). Upon investigation, most UFOs are Identification studies of UFOs, identified as known objects or atmospheric phenomena, while a small number remain unexplained. While unusual sightings in the sky have been reported since at least the 3rd century BC, UFOs became culturally prominent after World War II, escalating during the Space Age. Studies and investigations into UFO reports conducted by governments (such as Project Blue Book in the United States and Project Condign in the United Kingdom of Great Britain and Ireland, United Kingdom), as well as by organisations and individuals have occurred over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recess (break)
Recess is a general term for a period in which a group of people are temporarily dismissed from their duties. In education, recess is the American and Australian term (known as ''break'' or ''playtime'' in the UK), where students have a mid morning snack and play before having lunch after a few more lessons. Typically ten to thirty minutes, in elementary school where students are allowed to leave the school's interior to enter its adjacent outside park where they play on equipment such as slides and swings, play basketball, tetherball, study, make up any missing assignments or talk. Many middle and high schools also offer a recess to provide students with a sufficient opportunity to consume quick snacks, communicate with their peers, visit the restroom, study, and various other activities. Importance of play in child development During recess, children play, and learning through play has been long known as a vital aspect of childhood development. Some of the earliest s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dust Devil
A dust devil (also known regionally as a dirt devil) is a strong, well-formed, and relatively short-lived whirlwind. Its size ranges from small (18 in/half a metre wide and a few yards/metres tall) to large (more than 30 ft/10 m wide and more than half a mile/1 km tall). The primary vertical motion is upward. Dust devils are usually harmless, but can on rare occasions grow large enough to pose a threat to both people and property. They are comparable to tornadoes in that both are a weather phenomenon involving a vertically oriented rotating column of wind. Most tornadoes are associated with a larger parent circulation, the mesocyclone on the back of a supercell thunderstorm. Dust devils form as a swirling updraft under sunny conditions during fair weather, rarely coming close to the intensity of a tornado. Formation Dust devils form when a pocket of hot air near the surface rises quickly through cooler air above it, forming an updraft. If conditions ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AIDS
The HIV, human immunodeficiency virus (HIV) is a retrovirus that attacks the immune system. Without treatment, it can lead to a spectrum of conditions including acquired immunodeficiency syndrome (AIDS). It is a Preventive healthcare, preventable disease. It can be managed with treatment and become a manageable chronic health condition. While there is no cure or vaccine for HIV, Management of HIV/AIDS, antiretroviral treatment can slow the course of the disease, and if used before significant disease progression, can extend the life expectancy of someone living with HIV to a nearly standard level. An HIV-positive person on treatment can expect to live a normal life, and die with the virus, not of it. Effective #Treatment, treatment for HIV-positive people (people living with HIV) involves a life-long regimen of medicine to suppress the virus, making the viral load undetectable. Treatment is recommended as soon as the diagnosis is made. An HIV-positive person who has an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Skepticism
Scientific skepticism or rational skepticism (also spelled scepticism), sometimes referred to as skeptical inquiry, is a position in which one questions the veracity of claims lacking scientific evidence. In practice, the term most commonly refers to the examination of claims and theories that appear to be Pseudoscience, unscientific, rather than the routine discussions and challenges among scientists. Scientific skepticism differs from philosophical skepticism, which questions humans' ability to claim any knowledge about the nature of the world and how they perceive it, and the similar but distinct Cartesian doubt, methodological skepticism, which is a systematic process of being skeptical about (or doubting) the truth of one's beliefs. in The skeptical movement (American and British English spelling differences#Miscellaneous spelling differences, British spelling: sceptical movement) is a contemporary social movement based on the idea of scientific skepticism. The movement ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ufology
Ufology, sometimes written UFOlogy ( or ), is the investigation of unidentified flying objects (UFOs) by people who believe that they may be of extraordinary claims, extraordinary origins (most frequently of extraterrestrial hypothesis, extraterrestrial alien visitors). While there are instances of List of investigations of UFOs by governments, government, List of UFO organizations, private, and fringe science investigations of UFOs, ufology is generally regarded by Skeptical movement, skeptics and Science education, science educators as an example of pseudoscience. Etymology Ufology is a neologism derived from ''UFO'' (a term apparently coined by Edward J. Ruppelt), and is derived from appending the acronym UFO with the suffix ''-logy'' (from the Ancient Greek ''-λογία'' (''-logia'')). Early uses of ufology include an article in ''Fantastic Universe'' (1957) and a 1958 presentation for the UFO "research organization" The Planetary Center. Historical background The roots ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Ndebele People
The Northern Ndebele people (; ; ) are a Nguni ethnic group native to Southern Africa. Significant populations of native speakers of the Northern Ndebele language (siNdebele) are found in Zimbabwe and as amaZulu in South Africa. They differ from Southern Ndebele people who speak isiNdebele of KwaNdebele. Regional classification The Northern Ndebele language spoken by the Ndebele people of Zimbabwe is generally the same as the isiZulu language spoken by the Zulu people of South Africa with a few pronunciation and word meaning differences. Northern Ndebele spoken in Zimbabwe and Southern Ndebele (or Transvaal Ndebele) spoken in South Africa are separate but related languages with some degree of mutual intelligibility, although the former is more closely related to Zulu. Southern Ndebele, while maintaining its Nguni roots, has been influenced by the Sotho languages. Etymology The Northern Ndebele, specifically the Khumalo (amaNtungwa) people under Mzilikazi, were origi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shona People
The Shona people () also/formerly known as the Karanga are a Bantu peoples, Bantu ethnic group native to Southern Africa, primarily living in Zimbabwe where they form the majority of the population, as well as Mozambique, South Africa, and worldwide diaspora. There are five major Shona language/dialect clusters: Manyika, Karanga, Zezuru, Korekore, Kalanga, and Ndau. Classification The Shona people are grouped according to the dialect of the language they speak. Their estimated population is 22.6 million: * Korekore people, Korekore (northern region of Zimbabwe) * Zezuru people, Zezuru (central Zimbabwe) * Manyika tribe, Manyika (eastern Zimbabwe around Mutare, Buhera, Nyanga, Zimbabwe, Nyanga and into Mozambique) * Ndau people, Ndau (southeast Zimbabwe around Mutare, Chimanimani, Chipinge and into Mozambique) * Karanga people, Karanga (south-central Zimbabwe around Masvingo) * Kalanga people, Kalanga (southwest Zimbabwe, interspersed with the Northern Ndebele people, Ndebele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tikoloshe
In Nguni mythology, the tokoloshe, tikoloshe, tikolosh, tonkolosh, tonkolosi, tokolotshe, thokolosi, or hili is a dwarf-like water spirit. It is a mischievous and evil spirit that can become invisible by drinking water or swallowing a stone. Tokoloshes are called upon by malevolent people to cause trouble for others. At its least harmful, a tokoloshe can be used to scare children, but its power extends to causing illness or even the death of the victim. Protection against them includes traditional methods such as raising beds off the ground and interventions by spiritual figures like pastors with an apostolic calling or traditional healers ( sangomas), who are seen to possess the power to banish them. The tokoloshe is often referenced satirically to critique the influence of superstitions on behaviour and society. Mythology The advent of the phantom tokoloshe came about through Bantu folklore to explain why people inexplicably died while sleeping in their rondavels at nig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extraterrestrial Life
Extraterrestrial life, or alien life (colloquially, aliens), is life that originates from another world rather than on Earth. No extraterrestrial life has yet been scientifically conclusively detected. Such life might range from simple forms such as prokaryotes to Extraterrestrial intelligence, intelligent beings, possibly bringing forth civilizations that might be Kardashev scale, far more, or far less, advanced than humans. The Drake equation speculates about the existence of sapient life elsewhere in the universe. The science of extraterrestrial life is known as astrobiology. Speculation about the possibility of inhabited worlds beyond Earth dates back to antiquity. Early Christianity, Christian writers discussed the idea of a "plurality of worlds" as proposed by earlier thinkers such as Democritus; Augustine of Hippo, Augustine references Epicurus's idea of innumerable worlds "throughout the boundless immensity of space" in ''The City of God''. Pre-modern writers typicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airplane
An airplane (American English), or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, Propeller (aircraft), propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, air transportation, transportation of goods and people, military aviation, military, and Experimental aircraft, research. Worldwide, commercial aviation transports more than four billion passengers annually on airliners and transports more than 200 billion tonne-kilometersMeasured in RTKs—an RTK is one tonne of revenue freight carried one kilometer. of cargo annually, which is less than 1% of the world's cargo movement. Most airplanes are flown by a pilot on board the aircraft, but some are designed to be unmanned aerial vehicle, remotely or computer-controlled such as drones. The Wright brothers invented and flew the Wright Flyer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollution
Pollution is the introduction of contaminants into the natural environment that cause harm. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Although environmental pollution can be caused by natural events, the word pollution generally implies that the contaminants Human impact on the environment, have a human source, such as manufacturing, Extractivism, extractive industries, poor waste management, transportation or Agricultural pollution, agriculture. Pollution is often classed as point source pollution, point source (coming from a highly concentrated specific site, such as a factory, Environmental effects of mining, mine, construction site), or nonpoint source pollution (coming from a widespread distributed sources, such as microplastics or agricultural runoff). Many sources of po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
