61,984 articles
Elsinore Arch
Elsinore Arch, also called the Elsinore Tower, is a castellated limestone gateway in Cincinnati, Ohio, built in 1883 as a valve house and entrance to Eden Park.
Elster (metering company)
Elster is a metering brand and former company group that makes gas, electricity, and water meters, acquired by Honeywell from Melrose Industries in 2015 for about $5.1 billion.
Eltz Castle
Eltz Castle (German: Burg Eltz) is a medieval castle in the hills near the Moselle in Rhineland-Palatinate, Germany, first mentioned in 1157 and owned by the Eltz family for 34 generations.
ELU.AI
ELU.AI (中能坤域科技集团, INFIFORCE Technology Group) is a Chinese embodied-intelligence startup founded in 2023 in Hangzhou by former Alibaba vice president Bai Huiyuan, building robots, industry AI, and energy-sector decision systems.
Elunate
Elunate is the brand name under which HUTCHMED markets the oral anticancer drug fruquintinib in China, approved in 2018 for previously treated metastatic colorectal cancer; outside China it is sold as Fruzaqla.
Elvy
Elvy, formerly Geofy, is a Stockholm-based Swedish startup founded in 2023 that sells residential solar panels, heat pumps, and home batteries through a 15-year fixed-price subscription.
Elwha Dam
The Elwha Dam was a 105-foot hydroelectric dam on the Elwha River on Washington's Olympic Peninsula, built from 1910 to 1913 and removed in 2012.
Elwha River dam removal project
The Elwha River dam removal project (2011–2014) demolished two hydroelectric dams on Washington's Olympic Peninsula, the largest dam removal in history, reopening over 70 miles of salmon habitat.
Elwood Energy power station
Elwood Energy is a natural gas-fired peaking power station in Elwood, Will County, Illinois, about 60 miles southwest of Chicago, built in two phases beginning in 1999.
Ely S. Parker
Ely S. Parker, born Hasanoanda and later known as Donehogawa, was a Tonawanda Seneca engineer and Union Army officer who served as Ulysses S. Grant's military secretary.
Élysée Palace
The Élysée Palace (Palais de l'Élysée), also known as the Hôtel d'Évreux, is a Paris town house built 1718 to 1722 that has been the French President's official residence since 1871.
Em (typography)
An em is a typographic unit equal to the current point size of the type, so an em of 12-point type is 12 points; it is a relative unit with no fixed physical value.
EM-2 rifle
The EM-2 rifle, also called the Enfield EM2 or Janson Rifle, was a British bullpup assault rifle developed at Enfield in 1948 and adopted in 1951 as Rifle No.9 Mk1.
Emacs
Emacs is a family of extensible text editors built around an embedded Lisp interpreter; GNU Emacs, begun by Richard Stallman in 1984, is the most widely used version.
Emacs Lisp
Emacs Lisp, also called Elisp, is a dialect of the Lisp programming language that serves as the extension language of GNU Emacs, in which most of the editor itself is written.
Emad Mostaque
Emad Mostaque is a British entrepreneur who founded Stability AI, the company behind the commercial rollout of Stable Diffusion, and resigned as its chief executive in March 2024.
eMagin
eMagin was a New York-based maker of OLED-on-silicon microdisplays used in military helmets, night vision goggles, and VR headsets, acquired by Samsung Display in 2023.
Email, or electronic mail, is a method of exchanging typed messages over computer networks, first sent by Ray Tomlinson on the ARPANET in 1971 using the user@host address form.
Email address
An email address is an Internet identifier of the form local-part@domain that specifies a mailbox for electronic mail, defined in RFC 5322 and governed by SMTP.
Email client
An email client, or mail user agent, is software that lets a user compose, send, receive, read, and organize email as an app or via webmail.
Email spoofing
Email spoofing is the forgery of an email's sender information so a message appears to come from a different domain, enabling phishing and business email compromise scams.
Email storm
An email storm, also called a reply-all storm or reply-allpocalypse, is a cascade in which reply-all messages to a large list multiply until they overwhelm mail servers.
Emanuel Knill
Emanuel Knill is a quantum information scientist and NIST Fellow in Boulder, Colorado, known for the Knill–Laflamme error-correction theory, fault-tolerance thresholds, the KLM linear-optical protocol, and randomized benchmarking.
Emanuel Michael Sachs
Emanuel Michael "Ely" Sachs is an American mechanical engineer and MIT professor who invented binder-jet 3D printing in the 1980s and co-founded 1366 Technologies and Desktop Metal.
Emanuel Tutuc
Emanuel Tutuc is an electrical engineer and professor at the University of Texas at Austin, known for work on graphene, twisted moiré materials, and semiconductor nanowire devices.
Emarsys
Emarsys is an omnichannel customer engagement platform founded in Vienna, Austria, by Josef Ahorner, Hagai Hartman, and Daniel Harari, and acquired by SAP, which renamed it SAP Engagement Cloud in 2026.
EMAX (drone manufacturer)
EMAX is a Chinese brand of FPV drones and brushless motors made by Yinyan Model Tech. Ltd of Dongguan, Guangdong, best known for its Tinyhawk micro drones.
EMBA Hunutlu power station
EMBA Hunutlu power station, formerly Yumurtalik Emba power station, is a 1,320 MW imported-coal-fired plant in Adana Province, Türkiye, with two ultra-supercritical units commissioned in 2022.
Embalse nuclear power plant
The Embalse nuclear power plant (Central Nuclear Embalse) is a CANDU 6 plant in Córdoba Province, Argentina, operating since 1984 and refurbished from 2016 to 2019.
Embankment (canal)
An embankment in canal engineering is a raised bank of earth, or earth and masonry, carrying a canal above the surrounding ground so it can cross valleys in a level line.