outer core


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outer core

One part of the inside of the Earth (as opposed to the Earth's "inner core"). All right class, what can you tell me about the Earth's outer core?
See also: core, outer
References in periodicals archive ?
The outer core refers to cognition and ideation such as beliefs, values, attitudes, thought, and so forth that affirm self-extension or personal and collective psychological Africanity (WEUSI).
Some dusky areas shadow the northeastern part of the outer core, and the cluster's brightest region extends northeast-southwest.
It Core (9,700[degrees]F) floats within the outer core. SOURCE: United States Geological Survey 1.
Meteorites tend to be stony, iron or stony-iron - or, as Pugh explains it, originating from an early planet's mantle, core or outer core. Core meteorities look like slabs of raw steel, while mantle meteorites often look like stones of red clay with black crusts, the result of catching fire on their way to earth.
This shield is produced by the geodynamo, the rapid motion of huge quantities of liquid iron alloy in the Earth's outer core. To maintain this magnetic field until the present day, the classical model required the Earth's core to have cooled by around 3 000 A;C over the past 4.3 billion years.
Earth's innards are divided into layers: a solid iron-rich inner core, a molten iron-rich outer core, a gooey mantle and a rigid crust.
The resulting PCB permits direct die-attach of high-power RF die, such as GaA and GaN devices, through a cavity in the outer core layers directly to the thermal layer below, and then wire-bonding to the surface conductive layer.
Unlike a bar magnet, however, Earth's magnetic field changes over time because it is generated by a geodynamo (in Earth's case, the motion of molten iron alloys in its outer core).
Crust Upper mantle Lower mantle Outer core Inner core THE discovery that the centre of the Earth has two cores has left scientists doubly excited.
Electrical currents move deep underground, specifically at the Mohorovi i Discontinuity (moho) and in waves of molten nickel and iron in the liquid outer core. The ionosphere and the charged moho and related rocks together act as a giant capacitor (storage area).
This big eerie glow harbors a small, round, bright inner core enveloped by an oval outer core that fades gently toward its edges.
The Earth's inner core, made up of solid iron, "superrotates" in an eastward direction - meaning it spins faster than the rest of the planet - while the outer core, comprising mainly molten iron, spins westwards at a slower pace.
Inner and outer core positions = the innermost and outermost 0- to 25-mm-long segments of the increment cores removed from the timbers.
The survey area was divided into inner core (Oakland and Wayne Counties, Michigan), outer core, and non-core areas.