WebCite is an on-demand archiving service, designed to digitally preserve scientific and educationally important material on the web by making snapshots of Internet contents as they existed at the time when a blogger, or a scholar or a Wikipedia editor cited or quoted from it. The preservation service enables verifiability of claims supported by the cited sources when the original web pages are being revised, removed, or disappear for other reasons, an effect known as link rot; the service differs from the short time Google Cache copies by having indefinite archiving and by offering on-the-fly archiving. The Internet Archive, since 2013 offers immediate archiving, however WebCite has some advantages: pages cached by WebCite capture several layers of underlying links while Internet Archive only captures the top page chosen for archiving the accuracy with which formatting and functionality is preserved varies between Internet Archive and WebCite WebCite checks robots.txt only at the time of archiving, Internet Archive checks robots.txt so changes in robots.txt can result in removing the cached pages from the Internet ArchiveWebCite is a non-profit consortium supported by publishers and editors, it can be used by individuals without charge.
WebCite offered interfaces to scholarly journals and publishers to automate the archiving of cited links. By 2008, over 200 journals had begun using WebCite. WebCite used to be, but is no longer, a member of the International Internet Preservation Consortium. In a 2012 message on Twitter, Eysenbach commented that "WebCite has no funding, IIPC charges €4000 per year in annual membership fees."WebCite "feeds its content" to other digital preservation projects, including the Internet Archive. Lawrence Lessig, an American academic who writes extensively on copyright and technology, used WebCite in his amicus brief in the Supreme Court of the United States case of MGM Studios, Inc. v. Grokster, Ltd. WebCite ran a fund-raising campaign using FundRazr from January 2013 with a target of $22,500, a sum which its operators stated was needed to maintain and modernize the service beyond the end of 2013; this includes relocating the service to legal support. As of 2013 it remained undecided whether WebCite would continue as a non-profit or as a for-profit entity.
WebCite allows on-demand prospective archiving. It is not crawler-based. No cached copy will appear in a WebCite search unless the author or another person has cached it beforehand. To initiate the caching and archiving of a page, an author may use WebCite's "archive" menu option or use a WebCite bookmarklet that will allow web surfers to cache pages just by clicking a button in their bookmarks folder. One can retrieve or cite archived pages through a transparent format such as http://webcitation.org/query?url=URL&date=DATEwhere URL is the URL, archived, DATE indicates the caching date. For example, http://webcitation.org/query?url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FMain_Page&date=2008-03-04or the alternate short form http://webcitation.org/5W56XTY5h retrieves an archived copy of the URL http://en.wikipedia.org/wiki/Main_Page, closest to the date of March 4, 2008. The ID is the UNIX time in base 62, it is important to note. WebCite respects the author's request to not have their web page cached.
One can archive a page by navigating in their browser to a link formatted like this: http://webcitation.org/archive?url=urltoarchive&email=youremailCompared to Wayback Machine https://web.archive.org/save/urltoarchivereplacing urltoarchive with the full URL of the page to be archived, youremail with their e-mail address. This is. Once archived on WebCite, users can try to create an independent second-level backup copy of the starting URL, saving a second time the new WebCite's domain URL on web.archive.org, on archive.is. Users can more conveniently do this using a browser add-on for archiving; the term "WebCite" is a registered trademark. WebCite does not charge individual users, journal editors and publishers any fee to use their service. WebCite earns revenue from publishers who want to "have their publications analyzed and cited webreferences archived", accepts
San Mateo County, California
San Mateo County the County of San Mateo, is a county located in the U. S. state of California. As of the 2010 census, the population was 718,451; the county seat is Redwood City. San Mateo County is included in the San Calif.. Metropolitan Statistical Area, is part of the San Francisco Bay Area, the nine counties bordering San Francisco Bay, it covers most of the San Francisco Peninsula. San Francisco International Airport is located at the northern end of the county, Silicon Valley begins at the southern end; the county's built-up areas are suburban with some areas being urban, are home to several corporate campuses. San Mateo County was formed in 1856 after San Francisco County, one of the state's 18 original counties since California's statehood in 1850, was split apart; until 1856, San Francisco's city limits extended west to Divisadero Street and Castro Street, south to 20th Street. In response to the lawlessness and vigilantism that escalated between 1855 and 1856, the California government decided to divide the county.
A straight line was drawn across the tip of the San Francisco Peninsula just north of San Bruno Mountain. Everything south of the line became the new San Mateo County while everything north of the line became the new consolidated City and County of San Francisco, to date the only consolidated city-county in California; the consolidated city-county of San Francisco was formed by a bill introduced by Horace Hawes, signed by the governor on 19 April 1856. San Mateo County was organized on 18 April 1857 under a bill introduced by Senator T. G. Phelps; the 1857 bill defined the southern boundary of San Mateo County as following the south branch of San Francisquito Creek to its source in the Santa Cruz Mountains and thence due west to the Pacific Ocean, named Redwood City as the county seat. San Mateo County annexed part of northern Santa Cruz County in March 1868, including Pescadero and Pigeon Point. Although the forming bill named Redwood City the county seat, a May 1856 election marked by "unblushing frauds... perpetuated on an unorganized and wholly unprotected community by thugs and ballot stuffers from San Francisco" named Belmont the county seat.
The election results were declared illegal and the county government was moved to Redwood City, with land being donated from the original Pulgas Grant for the county government on 27 February 1858. Redwood City's status as county seat was upheld in two succeeding elections in May 1861 and 9 December 1873, defeating San Mateo and Belmont. Another election in May 1874 named San Mateo the county seat, but the state supreme court overturned that election on 24 February 1875 and the county seat has been in Redwood City since. San Mateo County bears the Spanish name for Saint Matthew; as a place name, San Mateo appears as early as 1776 in the diaries of Font. Several local geographic features were designated San Mateo on early maps including variously: a settlement, an arroyo, a headland jutting into the Pacific, a large land holding; until about 1850, the name appeared as San Matheo. The Japanese first arrived in San Mateo county and were part of a group guided by Ambassador Tomomi Iwakura back in 1872.
There were a number of all male Japanese students who came to San Mateo to learn English and many other helpful skills to bring back to Japan. These students were some of the first Japanese to join American students in the Belmont school for boys; these students had to work for their housing and food in the evenings. Many of the first Japanese immigrants were able to find jobs as gardeners and landscapers In San Mateo. Most of them had good educational background from their homelands, but their lack of knowing the English language made it difficult for them to find other jobs in the beginning. According to the U. S. Census Bureau, the county has a total area of 741 square miles, of which 448 square miles is land and 293 square miles is water, it is the third-smallest county in California by land area. A number of bayside watercourses drain the eastern part of the county including San Bruno Creek and Colma Creek. Streams draining the western county include Frenchmans Creek, Pilarcitos Creek, Naples Creek, Arroyo de en Medio, Denniston Creek.
These streams originate along the northern spur of the Santa Cruz Mountains that run through the county. The northern and north-east parts of the county are heavy densely populated with urban and suburban areas, with many of its cities as edge-cities for the Bay Area, whilst the deep south and the west central parts of the county are less heavy densely populated with more rural environment and coastal beaches areas. San Mateo County straddles the San Francisco Peninsula, with the Santa Cruz Mountains running its entire length; the county encompasses a variety of habitats including estuarine, oak woodland, redwood forest, coastal scrub and oak savannah. There are numerous species of wildlife present along the San Francisco Bay estuarine shoreline, San Bruno Mountain, Fitzgerald Marine Reserve and the forests on the Montara Mountain block. Several creeks discharge to the San Francisco Bay including San Mateo Creek and Laurel Creek and several coastal streams discharge to the Pacific Ocean such as Frenchmans Creek and San Vicente Creek.
Año Nuevo State Marine Conservation Area and Greyhound Rock State Marine Conservation Area are two adjoining marine protected areas off the coast of San Mateo County. Like underwater parks, these marine protected areas help conserve ocean wildlife and marine ecosystems; the county is home to several endangered species including the San Francisco garter snake and the San Bruno elfin butterfly, b
Geographic coordinate system
A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position. A common choice of coordinates is latitude and elevation. To specify a location on a plane requires a map projection; the invention of a geographic coordinate system is credited to Eratosthenes of Cyrene, who composed his now-lost Geography at the Library of Alexandria in the 3rd century BC. A century Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses, rather than dead reckoning. In the 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically-plotted world map using coordinates measured east from a prime meridian at the westernmost known land, designated the Fortunate Isles, off the coast of western Africa around the Canary or Cape Verde Islands, measured north or south of the island of Rhodes off Asia Minor.
Ptolemy credited him with the full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day. Ptolemy's 2nd-century Geography used the same prime meridian but measured latitude from the Equator instead. After their work was translated into Arabic in the 9th century, Al-Khwārizmī's Book of the Description of the Earth corrected Marinus' and Ptolemy's errors regarding the length of the Mediterranean Sea, causing medieval Arabic cartography to use a prime meridian around 10° east of Ptolemy's line. Mathematical cartography resumed in Europe following Maximus Planudes' recovery of Ptolemy's text a little before 1300. In 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, England as the zero-reference line; the Dominican Republic voted against the motion, while Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911.
In order to be unambiguous about the direction of "vertical" and the "horizontal" surface above which they are measuring, map-makers choose a reference ellipsoid with a given origin and orientation that best fits their need for the area they are mapping. They choose the most appropriate mapping of the spherical coordinate system onto that ellipsoid, called a terrestrial reference system or geodetic datum. Datums may be global, meaning that they represent the whole Earth, or they may be local, meaning that they represent an ellipsoid best-fit to only a portion of the Earth. Points on the Earth's surface move relative to each other due to continental plate motion and diurnal Earth tidal movement caused by the Moon and the Sun; this daily movement can be as much as a metre. Continental movement can be up to 10 m in a century. A weather system high-pressure area can cause a sinking of 5 mm. Scandinavia is rising by 1 cm a year as a result of the melting of the ice sheets of the last ice age, but neighbouring Scotland is rising by only 0.2 cm.
These changes are insignificant if a local datum is used, but are statistically significant if a global datum is used. Examples of global datums include World Geodetic System, the default datum used for the Global Positioning System, the International Terrestrial Reference Frame, used for estimating continental drift and crustal deformation; the distance to Earth's center can be used both for deep positions and for positions in space. Local datums chosen by a national cartographical organisation include the North American Datum, the European ED50, the British OSGB36. Given a location, the datum provides the latitude ϕ and longitude λ. In the United Kingdom there are three common latitude and height systems in use. WGS 84 differs at Greenwich from the one used on published maps OSGB36 by 112 m; the military system ED50, used by NATO, differs from about 120 m to 180 m. The latitude and longitude on a map made against a local datum may not be the same as one obtained from a GPS receiver. Coordinates from the mapping system can sometimes be changed into another datum using a simple translation.
For example, to convert from ETRF89 to the Irish Grid add 49 metres to the east, subtract 23.4 metres from the north. More one datum is changed into any other datum using a process called Helmert transformations; this involves converting the spherical coordinates into Cartesian coordinates and applying a seven parameter transformation, converting back. In popular GIS software, data projected in latitude/longitude is represented as a Geographic Coordinate System. For example, data in latitude/longitude if the datum is the North American Datum of 1983 is denoted by'GCS North American 1983'; the "latitude" of a point on Earth's surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the Equator and to each other; the North Pole is 90° N. The 0° parallel of latitude is designated the Equator, the fun