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Snellen Chart, Snellen
Snellen is a Dutch surname. ''Snel'' means "quick" in Dutch and the original bearer of the name may have been a lively person. However, the origin of the surname often was patronymic, as Snel and Snelle were short forms of the archaic Germanic given name Snellaard (which originally meant "lively and strong"). at the Corpus of First Names in The Netherlands People with this surname include: * (1834–1908), Dutch ophthalmologist * (born 1970), Dutch astronomer * (1642–1691), Dutch Naval Officer * (1840–1907), Dutch meteorologist and explorer of the Arctic * |
Dutch Surname
Dutch or Nederlands commonly refers to: * Something of, from, or related to the Netherlands ** Dutch people as an ethnic group () ** Dutch nationality law, history and regulations of Dutch citizenship () ** Dutch language () * In specific terms, it reflects the Kingdom of the Netherlands ** Dutch Caribbean ** Netherlands Antilles Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People Ethnic groups * Pennsylvania Dutch, a group of early German immigrants to Pennsylvania Specific people * Dutch (nickname), a list of people * Johnny Dutch (born 1989), American hurdler and field athlete * Dutch Schultz (1902–1935), American mobster born Arthur Simon Flegenheimer * Dutch Mantel, ring name of American retired professional wrestler Wayne Maurice Keown (born 1949) * Dutch Savage, ring name of professional wrestler and promoter Frank Stewart (1935–2013) Arts, entertainment, and media Fictional characte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Language
Dutch ( ) is a West Germanic languages, West Germanic language of the Indo-European language family, spoken by about 25 million people as a first language and 5 million as a second language and is the List of languages by total number of speakers, third most spoken Germanic language. In Europe, Dutch is the native language of most of the population of the Netherlands and Flanders (which includes 60% of the population of Belgium). "1% of the EU population claims to speak Dutch well enough in order to have a conversation." (page 153). Dutch was one of the official languages of South Africa until 1925, when it was replaced by Afrikaans, a separate but partially Mutual intelligibility, mutually intelligible daughter language of Dutch. Afrikaans, depending on the definition used, may be considered a sister language, spoken, to some degree, by at least 16 million people, mainly in South Africa and Namibia, and evolving from Cape Dutch dialects. In South America, Dutch is the native l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herman Snellen
Herman Snellen (, February 19, 1834 – January 18, 1908) was a Dutch ophthalmologist who in 1862 introduced the Snellen chart to study visual acuity. He took over directorship of the Netherlands Hospital for Eye Patients (Nederlandsch Gasthuis voor Ooglijders), after Franciscus Donders. He was elected an International Member of the American Philosophical Society in 1894. Early life Herman Snellen studied medicine at Utrecht University under Donders, Gerardus Johannes Mulder and Jacobus Schroeder van der Kolk. He earned his medical degree in 1858 from Leiden University. He specialized in ophthalmology and worked as an assistant physician at the Netherlands Hospital for Eye Patients after he had completed his degree. Director He was named to succeed Donders as the institute's director in 1884, a position he served until 1903. In 1877, he was appointed as a professor of ophthalmology at Utrecht University. He did research on astigmatism, glaucoma and other eye diseases as well as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Cornelius Tobias Snellen
Pieter Cornelius Tobias Snellen (30 August 1832 – 29 March 1911) was a Dutch entomologist. Pieter Snellen was a merchant in Rotterdam. He is not to be confused with Samuel Constantinus Snellen van Vollenhoven, another entomologist from Rotterdam. Works *Lepidoptera / door P.C.T. Snellen met eene inleidung door Joh. F. Snelleman. Leiden, Brill,189online at BHL*''The Rhopalocera of Java.'' with Murinus Cornelius Piepers and Hans Fruhstorfer. The Hague, M. Nijhoff 1909-18onlineat Biodiversity Heritage Library Four volumes. *Snellen, P.C.T. 1872 Bijdrage tot de Vlinder-Faune van Neder-Guinea, zuidwestelijk gedeelte van Afrika. ''Tidschrift voor Entomologie'' 15:1-112. *Snellen, P.C.T. 1882 Aanteekeningen over Afrikaanische Lepidoptera. ''Tidschrift voor Entomologie'' 25:215-234. References *Anonym. 1911 [Snellen, P. C. T.] ''Entomologist's Monthly Magazine'' (3), London 11 External linksGaedicke in Groll, E. K. (Hrsg.): Biografien der Entomologen der Welt : Datenbank. Version 4. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Constantinus Snellen Van Vollenhoven
Samuel Constant Snellen van Vollenhoven (18 October 1816, Rotterdam – 22 March 1880) was a Dutch entomologist. He is not to be confused with Pieter Cornelius Tobias Snellen another entomologist from Rotterdam. He was curator of the entomological collections for the Natural History Museum, Leiden from 1854 to 1873, when he retired due to health problems. In 1857 he founded ''Tijdschrift voor Entomologie'', a journal of systematic and evolutionary entomology published by the Netherlands Entomological Society. Snellen van Vollenhoven was a founder member of this Society. He described 9 genera and 471 species of insects. With Frederik Maurits van der Wulp he compiled the first checklist of the Diptera Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advance ... of the Netherlands. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snellen Chart
A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor Franciscus_Donders, Franciscus Cornelius Donders. Many ophthalmologists and vision scientists now use an improved chart known as the LogMAR chart. History Snellen developed charts using symbols based in a 5×5 unit grid. The experimental charts developed in 1861 used abstract symbols. Snellen's charts published in 1862 used alphanumeric capitals in the 5×5 grid. The original chart shows A, C, E, G, L, N, P, R, T, 5, V, Z, B, D, 4, F, H, K, O, S, 3, U, Y, A, C, E, G, L, 2. Description The normal Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch-language Surnames
Dutch ( ) is a West Germanic languages, West Germanic language of the Indo-European language family, spoken by about 25 million people as a first language and 5 million as a second language and is the List of languages by total number of speakers, third most spoken Germanic language. In Europe, Dutch is the native language of most of the population of the Netherlands and Flanders (which includes 60% of the population of Belgium). "1% of the EU population claims to speak Dutch well enough in order to have a conversation." (page 153). Dutch was one of the official languages of South Africa until 1925, when it was replaced by Afrikaans, a separate but partially Mutual intelligibility, mutually intelligible daughter language of Dutch. Afrikaans, depending on the definition used, may be considered a sister language, spoken, to some degree, by at least 16 million people, mainly in South Africa and Namibia, and evolving from Cape Dutch dialects. In South America, Dutch is the native l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
