All articles starting with E
17,681 articles
Er:YAG laser
The Er:YAG laser is a solid-state medical laser that emits at 2940 nm, matching a strong water absorption peak, making it effective for ablating skin, tooth, and bone.
ER=EPR conjecture
The ER=EPR conjecture, proposed by Juan Maldacena and Leonard Susskind in 2013, holds that quantum entanglement between systems, especially black holes, corresponds to wormhole connections.
Era
Era: second-longest division of geologic time (below eon, above period; e.g., Paleozoic Era) and, in chronology, a year-counting system from a fixed epoch, as in the Seleucid or Common Era.
Era (musical project)
Era is a French new age musical project founded in 1996 by Eric Lévi, known for "Ameno" and lyrics in an invented Latin-like language; over 15 million albums sold, eighth album ERA VIII released 2026.
Era Istrefi
Era Istrefi is an Albanian-Kosovar pop singer and songwriter from Pristina, Kosovo, born in 1994, known for the viral hit "BonBon" and the 2018 World Cup anthem "Live It Up".
Era of Good Feelings
Era of Good Feelings, c. 1815–1825, the one-party period of James Monroe's US presidency after Federalist collapse; coined by Boston's Columbian Centinel in 1817, strained by the Panic of 1819, Missouri Compromise, and the contested 1824 election.
Era of Palace Revolutions
The Era of Palace Revolutions (Эпоха дворцовых переворотов) is the name historians give the coups of 18th-century Russia, from Catherine I's 1725 accession to Alexander I's in 1801.
Era of Silence
The Era of Silence (Estonian: vaikiv ajastu) is the period of Estonian history from 1934 to 1940, when Konstantin Päts's authoritarian regime censored the press and banned political parties.
Era of Stagnation (эпоха застоя)
The Era of Stagnation (эпоха застоя), or Zastoy, is the name for the Soviet Union's Brezhnev period, 1964 to 1985, when economic growth slowed decade by decade.
Era Vulgaris (album)
Era Vulgaris, the fifth Queens of the Stone Age studio album (Interscope, June 12, 2007), produced by Josh Homme and Chris Goss; singles "Sick, Sick, Sick", "Make It Wit Chu", "3's & 7's"; Metascore 75.
ERA-40
ERA-40 is a global atmospheric reanalysis dataset from the European Centre for Medium-Range Weather Forecasts, reprocessing archived observations from September 1957 to August 2002 with a fixed forecasting model, and succeeded by ERA-Interim and ERA5.
ERA5
ERA5 is the fifth generation global atmospheric reanalysis produced by ECMWF for the Copernicus Climate Change Service, combining observations with a weather model from 1940 onward.
Eradication of dracunculiasis
The eradication of dracunculiasis (guinea-worm disease) is a global health campaign led by The Carter Center, which cut cases from 3.5 million in 1986 to 10 in 2025.
Eradication of infectious diseases
Eradication of infectious diseases: permanent worldwide zero of a pathogen by deliberate effort. Smallpox only human success (1980); Guinea worm and polio campaigns ongoing; malaria, measles assessed.
Eradication of the Asian giant hornet in North America
The eradication of the Asian giant hornet in North America removed hornets detected in Washington and British Columbia between 2019 and 2021, declared eradicated in 2024.
Eragon
Eragon is Christopher Paolini's 2003 young adult fantasy novel, book one of the Inheritance Cycle about farm boy Dragon Rider Eragon and his dragon Saphira in Alagaësia. Self-published by his family, then acquired by Knopf, it anchors a series that sold over 40 million copies and spawned a 2006 film and a Disney+ series.
Eragon (film)
Eragon is a 2006 fantasy adventure film directed by Stefen Fangmeier, starring Ed Speleers as a farm boy who becomes a Dragon Rider; it earned $249 million worldwide.
Erai Maggi Scheffer
Eraí Maggi Scheffer is a Brazilian agribusiness entrepreneur who co-founded and leads Grupo Bom Futuro, one of Brazil's largest farm groups, and is known as the "Rei da Soja" (Soybean King).
Eraka Thera
Eraka Thera (एरक थेर) is a thera and arahant of the Theravada tradition, a contemporary of the Buddha remembered for a single Theragatha verse on the danger of sensual desires.
Eraldo Pizzo
Eraldo Pizzo, "Il Caimano" (born 21 April 1938, Genoa), Italian water polo player. Olympic gold at Rome 1960, 15 Italian titles with Pro Recco, 275 goals in 178 Italy caps, ISHOF inductee 1990.
Eram Park Zoo
Eram Park Zoo (باغ وحش ارم), also Tehran Zoological Garden, is Iran's largest zoo, opened 1992 at km 4 of the Tehran–Karaj Freeway in Eram Park, west Tehran, holding roughly 800 animals of about 120 species, about 60 percent native to Iran.
Eramet
Eramet is a French mining and metallurgical group, the world's leading producer of high-grade manganese, producing manganese in Gabon, nickel in Indonesia and New Caledonia, mineral sands, and lithium.
Eramo v. Rolling Stone
Eramo v. Rolling Stone is a defamation suit by University of Virginia associate dean Nicole Eramo over Rolling Stone's 2014 story "A Rape on Campus," which falsely depicted her.
Eran Elinav
Eran Elinav is an Israeli physician-scientist who studies how the gut microbiome interacts with the human body, heading the Department of Systems Immunology at the Weizmann Institute in Rehovot, Israel.
Eran Halperin
Eran Halperin is a computational biologist and statistical geneticist who develops machine learning methods for genomic data, and since 2026 has been a professor at New York University's Courant Institute.
Eran Inscription of Samudragupta
The Eran Inscription of Samudragupta (एरण अभिलेख) is a fragmentary Sanskrit praise inscription on red sandstone found at Eran, Madhya Pradesh, recording that the Gupta emperor Samudragupta established something, now lost, at the town of Airikina.
Eran inscription of Toramana
The Eran inscription of Toramana (ऐरण अभिलेख) is a Sanskrit inscription carved on a stone boar at Eran, Madhya Pradesh, recording a temple to Vishnu.
Eran Kirzner
Eran Kirzner is the co-founder and chief executive officer of Lightbits Labs, the San Jose, California company behind the LightOS software-defined NVMe over TCP storage platform, founded in 2016.
Eran Pichersky
Eran Pichersky is a plant biochemist and emeritus professor at the University of Michigan known for research on how plants make volatile scent and flavor compounds.
Eran Rabani
Eran Rabani (ערן רבני) is an Israeli theoretical and computational chemist known for nanocrystal research and stochastic electronic structure methods; he joined the Hebrew University of Jerusalem in 2025.