edgepedia

Technology and the built world

61,984 articles

English ship Revenge (1577)

Revenge was an English race-built galleon of the Elizabethan navy, launched in 1577, that served as Sir Francis Drake's flagship against the Spanish Armada in 1588.

English ship Sovereign of the Seas

Sovereign of the Seas was a first-rate warship of the English Royal Navy, launched at Woolwich in 1637 and the first English vessel to carry 100 guns.

English Wikipedia

English Wikipedia, also known as Enwiki, is the English-language edition of Wikipedia, the volunteer-written online encyclopedia. It is the largest of over 300 editions, holding around 7 million articles.

Engro Elengy FSRU

The Engro Elengy FSRU is the floating storage and regasification vessel Exquisite at Pakistan's first LNG import terminal, at Port Qasim, operational since March 2015.

Enhanced 9-1-1

Enhanced 9-1-1 (E911) is a North American emergency telephone service, established in the mid-1970s, that automatically delivers a caller's telephone number and location to the public safety answering point.

Enhanced 911

Enhanced 911, also written E911 or E9-1-1, is a service that sends 911 calls to a public safety answering point together with the caller's telephone number and location, supplied automatically.

Enhanced biological phosphorus removal

Enhanced biological phosphorus removal (EBPR) is a wastewater treatment process in which polyphosphate-accumulating microorganisms, cycled anaerobically and aerobically, take up phosphorus that leaves with the waste sludge.

Enhanced CD

Enhanced CD, also called CD Plus or CD Extra, is a compact disc format, introduced in 1994, carrying audio tracks plus computer data such as videos and lyrics.

Enhanced Combat Helmet (United States)

The Enhanced Combat Helmet is a US Army, Marine Corps, and Navy combat helmet made from UHMWPE rather than para-aramids, offering more ballistic protection at a similar weight.

Enhanced Distributed Channel Access

Enhanced Distributed Channel Access (EDCA), certified as WMM, is the IEEE 802.11e contention-based access mechanism that gives Wi-Fi quality of service by sorting traffic into four priority classes: background, best effort, video, and voice.

Enhanced driver's license

An enhanced driver's license (EDL) is a U.S. state-issued license proving identity and citizenship, accepted for land and sea border reentry in place of a passport in five states.

Enhanced Frequency Response (National Grid)

Enhanced Frequency Response (EFR) was a fast, sub-second frequency response service tendered by National Grid in Great Britain, awarding 200 MW of battery storage contracts in 2016.

Enhanced Graphics Adapter

The Enhanced Graphics Adapter (EGA) is an IBM PC graphics card introduced in 1984, offering graphics at up to 640 × 350 pixels with 16 colors.

Enhanced Inter-Cell Interference Coordination

Enhanced Inter-Cell Interference Coordination (eICIC) is an LTE technique, standardized in 3GPP Release 10, in which a macrocell periodically mutes transmissions so small cells serve users with less interference.

Enhanced Interior Gateway Routing Protocol

Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco routing protocol for routing within a single autonomous system, using the DUAL algorithm for loop-free paths.

Enhanced Tactical Flow Management System

The Enhanced Tactical Flow Management System (ETFMS) is EUROCONTROL's flow management application, in service since 2002, which calculates air traffic demand and allocates ATFM slots to individual flights.

Eni

Eni, originally Ente Nazionale Idrocarburi, is an Italian integrated energy company founded in 1953 under Enrico Mattei, controlled by the Italian state and operating in 62 countries.

ENIAC

ENIAC (Electronic Numerical Integrator and Computer) was the first programmable electronic general-purpose digital computer, built at the University of Pennsylvania for the US Army between 1943 and 1946.

Enigma machine

The Enigma machine is a family of German electromechanical rotor cipher machines invented by Arthur Scherbius, patented in 1918 and used by German forces in World War II.

Enka Gebze power station

The Enka Gebze power station is a 1,600 MW natural gas-fired combined cycle plant in Sakarya, Türkiye, developed and operated by ENKA and commissioned in 2002.

ENKA İnşaat ve Sanayi

ENKA İnşaat ve Sanayi is a Turkish construction and energy conglomerate founded in Istanbul in 1957 and Türkiye's largest construction company, with 5,000 MW of gas-fired power capacity.

Enka İzmir power station

The Enka İzmir power station is a natural gas-fired combined cycle power plant in İzmir, Türkiye, owned and operated by ENKA with a capacity of 1,580 MW.

Enlaces Terrestres Mexicanos

Enlaces Terrestres Mexicanos (ETN) is a Mexican luxury intercity bus company founded in 1991 that runs three-across executive seating on double-decker coaches to more than 70 destinations across Mexico.

EnLink Midstream

EnLink Midstream was a Dallas-based midstream energy company formed in 2014 from Devon Energy and Crosstex assets, providing natural gas, NGL, and crude services until ONEOK acquired it in 2025.

Enlow Fork Coal Mine

The Enlow Fork Coal Mine is an underground longwall coal mine in Washington County, Pennsylvania, owned by Consol Pennsylvania Coal Company, a subsidiary of Core Natural Resources.

ENMAX

ENMAX Corporation is a Canadian electricity utility holding company, wholly owned by the City of Calgary since 1998, operating regulated wires in Calgary and Maine, plus generation and retail.

Ennis House

The Ennis House, also known as the Ennis-Brown House, is a 1924 Los Angeles residence designed by Frank Lloyd Wright for Charles and Mabel Ennis, built of interlocking concrete blocks in the Mayan Revival style.

Ennore LNG Terminal

The Ennore LNG Terminal is an LNG import, storage, and regasification terminal at Kamarajar Port near Chennai, Tamil Nadu, and the first LNG terminal on India's eastern coast.

Eno Ebong

Eno Ebong is an American biomedical engineer at Northeastern University who studies how mechanical forces affect blood vessel cells, and received the 2025 PECASE award.

eNodeB

eNodeB, also written eNB (evolved NodeB), is the base station of LTE (4G) cellular networks, handling radio resources, scheduling, and handovers while connecting directly to the Evolved Packet Core.