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English Wikipedia references for Sciencenews.org 61-80 of 500
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| Vitamin D Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol). The term vitamin D also refers to metabolites and other analogues of these substances. Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation. Vitamin_D | |
| Cabinet (government) A Cabinet is a body of high-ranking members of government, typically representing the executive branch. It can also sometimes be referred to as the Council of Ministers, an Executive Council, or an Executive Committee. Cabinet_(government) | |
| Peanut peanut, or groundnut (Arachis hypogaea), is a species in the legume family (Fabaceae) native to South America, Mexico and Central America. It is an annual herbaceous plant growing to 30 to 50leaves are opposite, pinnate with four leaflets (two opposite pairs; no terminal leaflet), each leaflet 1 to 7flowers are a typical peaflower in shape, 2 to 4pollination, the fruit develops into a legume 3 to 7seeds, which forces its way underground to mature. Peanut | |
| Brown Rat The brown rat, common rat, Hanover rat, Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats. One of the largest muroids, it is a brown or grey rodent with a body up to long, and a similar tail length; the male weighs on average and the female . Brown_Rat | |
| Louse Lice (singularlouse), (order Phthiraptera), also known as fly babies, are an order of over 3,000 species of wingless insects; three of which are classified as human disease agents. They are obligate ectoparasites of every avian and most mammalian orders. They are not found on Monotremes (the platypus and the echidnas or spiny anteaters) and a few eutherian orders, namely the bats (Chiroptera), whales, dolphins and porpoises (Cetacea) and pangolins (Pholidota). Louse | |
| Triboluminescence Triboluminescence is an optical phenomenon in which light is generated when asymmetrical crystalline bonds in a material are broken when that material is scratched, crushed, or rubbed. The phenomenon is not fully understood, but appears to be caused by the separation and reunification of electrical charges. Triboluminescence | |
| Australopithecus The genus Australopithecus (Latin australis "southern", Greek πίθηκος pithekos "ape") is a genus of extinct hominids, made up of the gracile australopiths, and formerly also included their larger relatives, the robust australopiths (which are now given their own genus). The genus Australopithecus is closely related to the human genus Homo, and may be ancestral to it. Australopithecus | |
| Impact event An impact event is the collision of a large meteorite, asteroid, comet, or other celestial object with the Earth or another planet. Impact events have been a plot and background element in science fiction since knowledge of real impacts became established in the scientific mainstream. Impact_event | |
| Persi Diaconis Persi Warren Diaconis (born January 31, 1945) is an American mathematician and former professional magician. He is the Mary V.Statistics and Mathematics at Stanford University. randomness and randomization, such as coin flipping and shuffling playing cards. Persi_Diaconis | |
| Noise pollution Noise pollution (or environmental noise) is displeasing human-, animal- or machine-created sound that disrupts the activity or balance of human or animal life. A common form of noise pollution is from transportation, principally motor vehicles. The word noise comes from the Latin word nausea meaning seasickness.The source of most noise worldwide is transportation systems, motor vehicle noise, but also including aircraft noise and rail noise. Noise_pollution | |
| Bilirubin Bilirubin (formerly referred to as hematoidin) is the yellow breakdown product of normal heme catabolism. Heme is found in hemoglobin, a principal component of red blood cells. Bilirubin is excreted in bile, and its levels are elevated in certain diseases. It is responsible for the yellow color of bruises and the yellow discoloration in jaundice.It has also been found in plants. Bilirubin | |
| Dog breed Dog breeds are groups of closely related and visibly similar domestic dogs, which are all of the subspecies Canis lupus familiaris, having characteristic traits that are selected and maintained by humans, bred from a known foundation stock. The term dog breed may also be used to refer to natural breeds or landraces, which arose through time in response to a particular environment which included humans, with little or no selective breeding by humans. Dog_breed | |
| El Dorado County, California El_Dorado_County,_California | |
| Human sacrifice Human sacrifice is the act of killing human beings as part of a religious ritual (ritual killing). Its typology closely parallels the various practices of ritual slaughter of animals (animal sacrifice) and of religious sacrifice in general. Human sacrifice has been practiced in various cultures throughout history. Human_sacrifice | |
| Spider silk Spider silk, also known as gossamer, is a protein fiber spun by spiders. Spiders use their silk to make webs or other structures, which function as nets to catch other creatures, or as nests or cocoons for protection for their offspring. They can also suspend themselves using their silk, normally for the same reasons. Spider_silk | |
| Narwhal Talk:Narwhal | |
| Myopia Myopia (, muōpia, "nearsightedness"), also called nearsightedness or shortsightedness, is a refractive defect of the eye in which collimated light produces image focus in front of the retina when accommodation is relaxed. Myopia | |
| Angle trisection The problem of trisecting the angle is a classic problem of compass and straightedge constructions of ancient Greek mathematics. An un-marked straightedge, and a compass, Problemangle one-third a given arbitrary angle. Angle_trisection | |
| A New Kind of Science A New Kind of Science (NKS) is a book by Stephen Wolfram, published in 2002. It contains an empirical and systematic study of computational systems such as cellular automata. Wolfram calls these systems simple programs and argues that the scientific philosophy and methods appropriate for the study of simple programs are relevant to other fields of science. A_New_Kind_of_Science | |
| Aleatoric music Aleatoric music (also aleatory music or chance music; from the Latin word alea, meaning "dice") is music in which some element of the composition is left to chance, and/or some primary element of a composed work's realization is left to the determination of its performer(s). The term is most often associated with procedures in which the chance element involves a relatively limited number of possibilities. Aleatoric_music |
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