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Straight Line Diagram
A straight-line diagram (abbreviated SLD) is a diagram of a road where the road is shown as a straight line. Such diagrams are usually produced by a highway department, and display features along the road, including bridges and intersecting roads. Rows below the diagram show data about the road, usually including speed limit, number of lanes, bridge numbers, and historical data, among other data. Subway lines also frequently employ straight-line diagrams. An internal SLD viewing system may also include links to other internal data, including photos or plans. Public SLDs are distributed in formats including PDF and TIFF. Straight-line diagrams were historically used in transportation planning but have been supplanted for these purposes by geographic information systems. A strip map is a road map laid out similarly to a straight-line diagram, featuring the same details found in more conventional road maps rather than technical details. In the United States, some strip maps are di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piccadilly
Piccadilly () is a road in the City of Westminster, London, England, to the south of Mayfair, between Hyde Park Corner in the west and Piccadilly Circus in the east. It is part of the A4 road (England), A4 road that connects central London to Hammersmith, Earl's Court, Heathrow Airport and the M4 motorway westward. St James's is to the south of the eastern section, while the western section is built up only on the northern side. Piccadilly is just under in length, and it is one of the widest and straightest streets in central London. The street has been a main thoroughfare since at least medieval times, and in the Middle Ages was known as "the road to Reading, Berkshire, Reading" or "the way from Colnbrook". Around 1611 or 1612, Robert Baker acquired land in the area, and prospered by making and selling piccadills. Shortly after purchasing the land, he enclosed it and erected several dwellings, including his home, Pikadilly Hall. What is now Piccadilly was named Portugal Str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dead Reckoning
In navigation, dead reckoning is the process of calculating the current position of a moving object by using a previously determined position, or fix, and incorporating estimates of speed, heading (or direction or course), and elapsed time. The corresponding term in biology, to describe the processes by which animals update their estimates of position or heading, is path integration. Advances in navigational aids that give accurate information on position, in particular satellite navigation using the Global Positioning System, have made simple dead reckoning by humans obsolete for most purposes. However, inertial navigation systems, which provide very accurate directional information, use dead reckoning and are very widely applied. Etymology Contrary to myth, the term "dead reckoning" was not originally used to abbreviate "deduced reckoning", nor is it a misspelling of the term "ded reckoning". The use of "ded" or "deduced reckoning" is not known to have appeared earlier th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diagrams
A diagram is a symbolic representation of information using visualization techniques. Diagrams have been used since prehistoric times on walls of caves, but became more prevalent during the Enlightenment. Sometimes, the technique uses a three-dimensional visualization which is then projected onto a two-dimensional surface. The word '' graph'' is sometimes used as a synonym for diagram. Overview The term "diagram" in its commonly used sense can have a general or specific meaning: * ''visual information device'' : Like the term "illustration", "diagram" is used as a collective term standing for the whole class of technical genres, including graphs, technical drawings and tables. * ''specific kind of visual display'' : This is the genre that shows qualitative data with shapes that are connected by lines, arrows, or other visual links. In science the term is used in both ways. For example, Anderson (1997) stated more generally: "diagrams are pictorial, yet abstract, represen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timeline
A timeline is a list of events displayed in chronological order. It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events. Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a set amount of time. This timescale is dependent on the events in the timeline. A timeline of evolution can be over millions of years, whereas a timeline for the day of the September 11 attacks can take place over minutes, and that of an explosion over milliseconds. While many timelines use a linear timescale—especially where very large or small timespans are relevant -- logarithmic timelines entail a logarithmic scale of time; some "hurry up and wait" chronologies are depicted with zoom lens metaphors. More usually, "timeline" refers merely to a data set which could be displayed as described above. For example, this meaning is used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schematic
A schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional organization of the information. For example, a subway map intended for passengers may represent a subway station with a dot. The dot is not intended to resemble the actual station at all but aims to give the viewer information without unnecessary visual clutter. A schematic diagram of a chemical process uses symbols in place of detailed representations of the vessels, piping, valves, pumps, and other equipment that compose the system, thus emphasizing the functions of the individual elements and the interconnections among them and suppresses their physical details. In an electronic circuit d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gantt Chart
A Gantt chart is a bar chart that illustrates a schedule (project management), project schedule. It was designed and popularized by Henry Gantt around the years 1910–1915. Modern Gantt charts also show the Dependency (project management), dependency relationships between activities and the current schedule status. Definition A Gantt chart is a type of bar chart that illustrates a project schedule. This chart lists the tasks to be performed on the vertical axis, and time intervals on the horizontal axis. The width of the horizontal bars in the graph shows the duration of each activity. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements constitute the work breakdown structure of the project. Modern Gantt charts also show the Dependency (project management), dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammassalik Wooden Maps
Ammassalik wooden maps are carved, tactile maps of the Greenlandic coastlines. In the 1880s, Gustav Holm led an expedition to the Ammassalik coast of eastern Greenland, where he met several Tunumiit, or Eastern Greenland Inuit communities, who had had no prior direct contact with Europeans. He returned to Denmark with a set of three-dimensional wooden maps of the coast around , carved by a native of Umivik named Kunit. History Kunit approached Holm on February 8, 1885, and sold the maps representing the coast from Sermiligak to Kangerdlugsuatsiak. Kunit returned on March 21 with another piece representing the peninsula between Sermiligak and Kangerdluarsikajik. Upon Holm's return, the maps were deposited along with the rest of the collection at the National Museum of Denmark in Copenhagen. As of 1948 the maps were still in Copenhagen; copies were deposited in the Musée d'Ethnographie du Trocadéro in Paris. At some point the maps were transferred to the Greenland National M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ogilby's Britannia
''Britannia'' is the title of each of three atlases created in England the late 16th and mid 18th centuries, describing some or all of the British Isles. These are the books published by William Camden (in 1586, reprinted 1693) and Richard Blome (in 1673) and John Ogilby (in 1675). Of the three, Ogilby's is probably best known because it was the first to use measured distances. Camden's ''Britannia'' In 1577, William Camden (1551–1623) began his great work ''Britannia'', a topographical and historical survey of all of Great Britain and Ireland. His stated intention was to "restore antiquity to Britaine, and Britain to his antiquity". The first edition, written in Latin, was published in 1586. It proved very popular, and ran through five further Latin editions, of 1587, 1590, 1594, 1600 and 1607, each greatly enlarged from its predecessor in both textual content and illustrations. The 1607 edition included for the first time a full set of English county maps, based on the surv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
99% Invisible
''99% Invisible'' is a radio show and podcast produced and created by Roman Mars that focuses on design. It began as a collaborative project between San Francisco public radio station KALW and the American Institute of Architects in San Francisco. PRX has distributed the show for broadcasting on a number of radio stations and as a podcast on the Radiotopia network. On April 28, 2021, Roman Mars announced in an introduction of a re-released episode that ''99% Invisible'' had been purchased by Sirius XM and marketed as part of its Stitcher Radio brand. History The name of the show was derived from a quote by Buckminster Fuller that, "Ninety-nine percent of who you are is invisible and untouchable." In 2014, ''99% Invisible'' began its fourth season, the first in which it had a weekly release schedule. As of 2024, show staff includes Executive Producer Kathy Tu; Content Director Kurt Kohlstedt; Senior Editor Delaney Hall; Director of Sound Swan Real; Senior Audio Engineer M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speedometer
A speedometer or speed meter is a gauge (instrument), gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment from about 1910 onwards. Other vehicles may use devices analogous to the speedometer with different means of sensing speed, eg. boats use a pit log, while aircraft use an airspeed indicator. Charles Babbage is credited with creating an early type of a speedometer, which was usually fitted to locomotives. The electric speedometer was invented by the Croats, Croat Josip Belušić in 1888 and was originally called a velocimeter. History The speedometer was originally patented by Josip Belušić (Giuseppe Bellussich) in 1888. He presented his invention at the Exposition Universelle (1889), 1889 Exposition Universelle in Paris. His invention had a pointer and a magnet, using eddy current, electricity to work. German inven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piccadilly Line
The Piccadilly line is a Deep level underground, deep-level London Underground line running between the west and the north of London. It has two western branches which split at Acton Town tube station, Acton Town and serves 53 stations. The line serves Heathrow Airport, and some of its stations are near tourist attractions in Central London such as Piccadilly Circus and Buckingham Palace. The District line, District and Metropolitan line, Metropolitan lines share some sections of track with the Piccadilly line. Printed in dark blue (officially "Corporate Blue", Pantone 072) on the Tube map, it is the sixth-busiest line on the Underground network, with nearly 218 million passenger journeys in 2019. The first section, between Finsbury Park station, Finsbury Park and Hammersmith tube station (District and Piccadilly lines), Hammersmith, was opened in 1906 as the Great Northern, Piccadilly and Brompton Railway (GNP&BR). The station tunnels and buildings were designed by Leslie Gree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
