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All articles starting with E

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Earth's crust

Earth's crust, the outermost solid shell of the Earth, accounts for about 1 percent of Earth's mass and is divided into thinner oceanic and thicker continental types.

Earth's energy budget

Earth's energy budget, also called Earth's energy balance, is the accounting of solar energy entering Earth and radiation leaving it, measured in watts per square meter.

Earth's inner core

Earth's inner core is the solid, centralmost sphere of the planet, made mostly of an iron-nickel alloy, bounded by the liquid outer core at about 1,221 km.

Earth's magnetic field

Earth's magnetic field, also called the geomagnetic field, is generated by the geodynamo in the molten outer core and extends into space as the magnetosphere.

Earth's mantle

Earth's mantle is the thick, mostly solid rock layer between the crust and the core, making up most of Earth's mass and driving plate tectonics and volcanism.

Earth's orbit

Earth's orbit, also called the Earth revolution, is the nearly circular path Earth travels around the Sun every 365.256 days at a mean distance of 149.598 million kilometers.

Earth's outer core

Earth's outer core is the liquid iron-nickel alloy shell surrounding the solid inner core, between about 2,890 and 5,150 km deep, whose churning metal generates Earth's magnetic field.

Earth's rotation

Earth's rotation is the spinning of the planet around its axis, taking 24 hours relative to the Sun and slightly less relative to the stars.

Eartha Kitt

Eartha Kitt (Eartha Mae Keith, 1927-2008), American singer and actress of "Santa Baby" and "C'est si bon" fame, Catwoman in 1960s Batman, blacklisted after her 1968 Vietnam War remarks at a Lady Bird Johnson White House luncheon, later a Tony-nominated Broadway and voice performer.

EarthBound

EarthBound (MOTHER 2: Gyiyg no Gyakushu) is a 1994 SNES RPG by Shigesato Itoi, released in North America in 1995; it sold poorly, became a cult classic, and was re-released on Wii U, 3DS, and Switch Online.

EarthBound 64

EarthBound 64 (Mother 3, MOTHER3) was the cancelled Nintendo 64 sequel to EarthBound, begun on SNES, moved to 64DD then cartridge, shown at Spaceworld 1999, cancelled August 2000, later released as GBA Mother 3 in Japan only.

EarthBound Halloween Hack

EarthBound Halloween Hack, also called Radiation's Halloween Hack: Bad Fur Day Edition, is a 2008 ROM hack of EarthBound by Toby Fox, made for Starmen.Net's Halloween Funfest; it originated Megalovania and precedes Undertale.

EarthCam

EarthCam is an American webcam technology company founded by Brian Cury in 1996 and headquartered in Upper Saddle River, New Jersey, known for live public cameras and construction time-lapse services.

EarthCARE

EarthCARE (Earth Cloud Aerosol and Radiation Explorer), nicknamed Hakuryu, is a joint ESA-JAXA satellite launched in 2024 to measure the vertical structure of clouds and aerosols.

Earthdawn

Earthdawn: fantasy tabletop RPG by FASA, released 1993, set in Barsaive, linked to Shadowrun's magic cycle. Step dice system, adepts, Disciplines, 15 Circles; editions from FASA, Living Room Games, Redbrick, and FASA Games' Fourth Edition.

Earthenware

Earthenware is pottery fired at low temperature so it stays slightly porous and must be glazed to hold liquids; most ancient painted ceramics are earthenware.

Earthflow

An earthflow is a type of landslide in which fine-grained silt and clay move downslope as a viscous flowing mass, slower and drier than a mudflow.

EarthGang

EarthGang (EARTHGANG) is an Atlanta hip-hop duo of Olu (Johnny Venus) and WowGr8 (Doctur Dot), formed in 2008, signed to Dreamville in 2017, part of Spillage Village, known for Mirrorland, Ghetto Gods, and the independent Perfect Fantasy.

Earthian AI

Earthian AI is an Amsterdam startup building small language models for pricing financial risk, which raised a pre-seed round at a $112 million valuation cap in 2026.

Earthing switch

An earthing switch is a mechanical switching device that connects de-energized circuits or high-voltage equipment to earth potential, protecting personnel during maintenance; it is standard in substations and governed by IEC 62271-102.

Earthing system

An earthing system, also known as a grounding system, is the set of conductors and electrodes connecting an electrical installation to earth, ensuring safe fault clearance.

Earthless

Earthless is an American instrumental psychedelic rock trio from San Diego, California, formed in 2001, known for long, largely improvised jams drawing on Krautrock and stoner metal.

Earthlings (film)

Earthlings is a 2005 American documentary written, produced, and directed by Shaun Monson and narrated by Joaquin Phoenix, with music by Moby and Natalie Merchant.

Earthly branches

The earthly branches (地支, dizhi) are a cyclic sequence of twelve terms used in the traditional Chinese calendar to name years, months, days, and two-hour periods.

EarthOptics

EarthOptics, formerly GroundTruth Ag, is a Minneapolis, Minnesota soil technology company founded in 2018 that uses sensors and machine learning to map soil compaction, carbon, and nutrients.

Earthquake

An earthquake, also called an earth tremor, is a shaking of the ground caused by a sudden slip on a fault, releasing energy as seismic waves through the crust.

Earthquake (1974 film)

Earthquake (1974) is a Universal disaster film directed by Mark Robson, starring Charlton Heston and Ava Gardner, depicting Los Angeles destroyed by a massive quake; first film in Sensurround, grossing over $167 million and winning the Best Sound Oscar.

Earthquake (Jisoo song)

earthquake (지수) is a 2025 song by BLACKPINK's Jisoo, title track of her debut mini album AMORTAGE, released February 14, 2025 via Blissoo and Warner Records; it topped Billboard World Digital Song Sales and its MV passed 100 million views.

Earthquake Bird

Earthquake Bird is a 2019 Netflix psychological thriller directed by Wash Westmoreland, adapted from Susanna Jones's 2001 novel, starring Alicia Vikander as translator Lucy Fly, suspected in her friend Lily Bridges's disappearance in 1989 Tokyo.

Earthquake bomb

The earthquake bomb, or seismic bomb, is a heavy deep-penetration bomb invented by Barnes Wallis in World War II, including the Tallboy and Grand Slam.