5,208 articles
Edinburgh Castle
Edinburgh Castle, also known as the Castle of the Maidens, is a fortress on Castle Rock in Edinburgh, Scotland, and the country's most visited paid tourist attraction.
Edmund Bacon (architect)
Edmund Norwood Bacon (1910–2005) was an American architect and city planner who, as head of Philadelphia's planning commission from 1949 to 1970, directed the city's postwar redevelopment and wrote Design of Cities.
Edmund Pettus Bridge
The Edmund Pettus Bridge is a 1940 bridge across the Alabama River at Selma, Alabama, where the 1965 Bloody Sunday march attack spurred the Voting Rights Act.
Edo Castle (江戸城)
Edo Castle (江戸城), also called Chiyoda Castle, was the Tokyo residence of the Tokugawa shoguns, the largest castle in Japanese history, now the Imperial Palace grounds.
Educational Alliance
The Educational Alliance is a nonprofit settlement house founded in 1889 on Manhattan's Lower East Side to serve Jewish immigrants; it now operates community centers, schools, and social services.
Edwin Lutyens
Sir Edwin Landseer Lutyens (1869–1944) was an English architect known for Arts and Crafts country houses, the planning of New Delhi, and war memorials led by the Cenotaph in Whitehall.
Eero Saarinen
Eero Saarinen (1910–1961) was a Finnish-American architect and industrial designer whose works include the Gateway Arch, the TWA Flight Center at JFK Airport, and the Tulip Chair.
Effective length factor
The effective length factor, usually written K, is a dimensionless coefficient in structural engineering that converts a compression member's actual length into an equivalent pinned-end length for buckling design.
Effects of Hurricane Katrina in New Orleans
The effects of Hurricane Katrina in New Orleans, also called the Great Flood of New Orleans, began when levee failures on August 29, 2005 flooded 80 percent of the city, killing hundreds.
Effluent
Effluent is wastewater that has been processed or partially processed and released into the environment, from domestic sewage, industrial discharge, or agricultural runoff, and is governed by treatment standards such as US secondary limits.
Eifel Aqueduct
The Eifel Aqueduct (Eifelwasserleitung) was a 95-kilometer Roman aqueduct, built around AD 80, that carried spring water from the Eifel hills to the Roman city of Cologne.
Eihei-ji
Eihei-ji (永平寺), Daihonzan Eihei-ji, is one of two head temples of Sōtō Zen in Japan, founded by Dōgen in 1244 in Fukui Prefecture as Daibutsu-ji, renamed 1246; an active training monastery with about 150 monks and 19 Important Cultural Property buildings.
Eiksund Tunnel
The Eiksund Tunnel is a subsea road tunnel in Møre og Romsdal, Norway, opened in 2008 and the world's deepest undersea road tunnel at 287 m.
Eisenhower Executive Office Building
The Eisenhower Executive Office Building, formerly the Old Executive Office Building, is a French Second Empire federal office building next to the White House, built between 1871 and 1888.
Eisenhower Tunnel
The Eisenhower Tunnel is the westbound bore of the Eisenhower-Johnson Memorial Tunnel, a dual-bore tunnel on Interstate 70 about 60 miles west of Denver that crosses the Continental Divide.
El Escorial
El Escorial, also known as the Monasterio de El Escorial, is a royal monastery, palace, basilica, and pantheon northwest of Madrid, built for Philip II between 1563 and 1584.
El Kantara Bridge
El Kantara Bridge (Bab El Kantra Bridge), Constantine, Algeria: historic Rhumel gorge crossing rebuilt as Roman stone bridge (161), Ottoman bridge (1792), French cast-iron arch (1863), and reinforced-concrete arch (1951).
El Paso Water Utilities
El Paso Water Utilities, branded El Paso Water, is the public utility supplying water, wastewater, and stormwater service to about 220,000 customers in El Paso, Texas, under the city's Public Service Board.
El-Salam Canal
El-Salam Canal (Arabic for "Peace Canal") is an irrigation canal in northeastern Egypt that carries blended Nile and drainage water under the Suez Canal into Sinai for land reclamation.
Elan aqueduct
The Elan aqueduct is a gravity-fed water-supply aqueduct carrying drinking water 73 miles from the Elan Valley Reservoirs in mid Wales to Frankley Reservoir in Birmingham, opened in 1906.
Elbtunnel
The Elbtunnel, officially the St. Pauli Elbtunnel and popularly called the Alter Elbtunnel, is a two-tube tunnel under the Elbe in Hamburg, opened in 1911 to carry harbor workers.
Electrodialysis
Electrodialysis is a membrane desalination process that transports salt ions through charged ion-exchange membranes under an electric field, best suited to brackish water rather than seawater.
Electronic distance measurement
Electronic distance measurement (EDM) determines the distance between two survey points from an electromagnetic wave, usually light or microwaves, propagated between them. Introduced commercially in 1950, it replaced taping and became standard in total stations.
Elephant Butte Reservoir
Elephant Butte Reservoir is an irrigation and hydropower reservoir on the Rio Grande in New Mexico, begun in 1915 as the centerpiece of the federal Rio Grande Project.
Eleutherna Bridge
Hellenistic corbel arch bridge at ancient Eleutherna (Ελεύθερνα), Crete, near Rethymno; limestone dry masonry, about 9 m long, 3.85 m span, damaged in 1883, preserved nearly complete.
Elevator
An elevator, also called a lift, is a vertical transport vehicle carrying passengers or goods between building floors, made practical by Elisha Otis's 1853 safety brake.
Elio D'Appolonia
Elio D'Appolonia (1918–2015) was a Canadian-born American geotechnical engineer who founded the Pittsburgh consulting firm D'Appolonia in 1956 and was elected to the National Academy of Engineering in 1977.
Elizabeth Diller
Elizabeth Diller is an American architect and artist, co-founding partner of the New York studio Diller Scofidio + Renfro, known for the High Line, the Blur Building, and The Shed.
Ellen Dunham-Jones
Ellen Dunham-Jones is an American architect and urbanist, a professor at Georgia Tech, who with June Williamson wrote Retrofitting Suburbia and maintains a database of over 2,500 suburban retrofit projects.
Ellis Bridge
Ellis Bridge, officially renamed Swami Vivekanand Bridge, is a heritage steel truss bridge across the Sabarmati River in Ahmedabad, Gujarat, built in 1892 as a symbol of the city.