outer core


Also found in: Idioms.

outer core

[′au̇d·ər ′kȯr]
(geology)
The outer or upper zone of the earth's core, extending to a depth of 3160 miles (5100 kilometers), and including the transition zone.
References in periodicals archive ?
Geological Survey , the magnetic field protecting Earth is generated by the electric currents caused by the convection currents or heat transfer of molten iron in the outer core. The convective movement produces kinetic energy that is then converted into electrical and magnetic energies.
"This process alters the steel's metallurgy: the outer core becomes very strong and brittle, but it is relatively very thin about one or two millimeter in thickness," Morales said.
When you delve past the surface, it has been concluded that Mars and Earth have very similar interiors - with a crust, mantle, and an inner and outer core. However, from a birds-eye perspective, the two planets have very different surfaces.
Contract awarded for 12330309-copper conductor 2 - core, 24 strand/0 .2mm, 230 volt ac with 2 layers of insulation of rubber and outer core of pvc to is - 690 to is - 694/1990 latest version for hand lamp cable.
It's said that there are four main layers of the earth: crust, outer core, mantle and inner core.
The precise cause of this change is extremely complicated, triggered by the unpredictable movements of vast streams of fast-moving liquid iron within the planet's outer core. While these developments are unlikely to affect most peoples daily lives, in major industries that require robust orientation data, such as shipping and the military, the adverse consequences can be significant.
The reason is turbulence in Earth's liquid outer core. There is a hot liquid ocean of iron and nickel in the planet's core where the motion generates an electric field, said University of Maryland geophysicist Daniel Lathrop, who wasn't part of the team monitoring the magnetic north pole.
In the present theory, the tripartite structure consists of constructs called the inner core, outer core and action.
There is a greater need today than ever before to redefine an organization's systems to embrace this outer core.
At 166x the reflector uncovers many faint to very faint stars in the 5' halo and 1 1/2' outer core, which grows denser and brighter toward the center.
"The inside layers of the earth, except for the outer core, which is made of liquid iron and nickel, are not made of liquid rock due to the tremendous amount of pressure they are under," Melander said.
Woven into the outer core of a ball, it allows a larger inner core, boosting speed t r d and cutting spin.