core definition history

A core is a device used in casting and moulding processes to produce internal cavities and reentrant angles (an interior angle that is greater than 180°). Hard core definition, the permanent, dedicated, and completely faithful nucleus of a group or movement, as of a political party. Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. See more. All rights reserved.The core is made primarily of iron and nickel and has two parts — an inner solid core and an outer liquid core.The New Dictionary of Cultural Literacy, Third Edition is from 1640s. In 1968, Seattle's chapter of CORE decided that, in order for it to function best in the community, it needed to be an all-black organization. Shortly before the march, Chicago city officials, including Mayor In 1966, James Farmer resigned as Director of CORE, to be replaced by A CORE delegation toured seven African countries in 1971. King sought equality and human rights for African Americans, the economically disadvantaged and all In August of 1619, a journal entry recorded that “20 and odd” Angolans, kidnapped by the Portuguese, arrived in the British colony of Virginia and were then were bought by English colonists. Christianity is the most widely practiced religion in the world, with more than 2 billion followers. Freedom Houses, transfer petitions, community rallies and meetings served to educate Chicagoans about segregation and provide them with tools to circumnavigate the neighborhood school policy. After attempting to © 2020 A&E Television Networks, LLC.

a cylindrical sample of earth, mineral, or rock extracted from the ground by means of a corer so that the strata are undisturbed in the sample.a lump of stone, as flint, from which prehistoric humans struck flakes in order to make tools.a wooden construction, as in a door, forming a backing for veneers.the softer interior of a piece of casehardened metal.a specially formed refractory object inserted into a mold to produce cavities or depressions in the casting that cannot be readily formed on the pattern.the central portion of the earth, having a radius of about 2,100 miles (3,379 km) and believed to be composed mainly of iron and nickel in a molten state.the region in a reactor that contains its fissionable material.a small ring or loop of ferromagnetic material with two states of polarization that can be changed by changing the direction of the current applied in wires wound around the ring, used to store one bit of information or to perform switching or logical functions.a term used to refer to main memory, though no longer made from from coils of ferromagnetic material.the final segment of a syllable beginning with the vowel and including any following consonants; the nucleus plus the coda.the muscles of the torso, which provide support for the spine and pelvis: Building a strong core can help with posture and flexibility and can prevent back injury.to remove (a cylindrical sample) from the interior, as of the earth or a tree trunk: to form a cavity in (a molded object) by placing a core, as of sand, in the mold before pouring.a small company or group of people, especially a gang of miners or a small corps of workers.the central part of certain fleshy fruits, such as the apple or pear, consisting of the seeds and supporting partsthe central, innermost, or most essential part of somethinga piece of magnetic material, such as soft iron, placed inside the windings of an electromagnet or transformer to intensify and direct the magnetic fieldthe central part of the earth, beneath the mantle, consisting mainly of iron and nickel, which has an inner solid part surrounded by an outer liquid parta cylindrical sample of rock, soil, etc, obtained by the use of a hollow drillshaped body of material (in metal casting usually of sand) supported inside a mould to form a cavity of predetermined shape in the finished castingthe region of a nuclear reactor in which the reaction takes placeone of several processing units working in parallel in a computera ferrite ring formerly used in a computer memory to store one bit of informationa lump of stone or flint from which flakes or blades have been removedthe nucleus together with all complete electron shells of an atomindicating the number of processing units working in parallel in a computerThe part of a nuclear reactor where fission occurs.The central or innermost portion of the Earth, lying below the mantle and probably consisting of iron and nickel.

The date and the story of the enslaved Africans have become symbolic of slavery’s roots, Freedom Summer, or the Mississippi Summer Project, was a 1964 voter registration drive aimed at increasing the number of registered black voters in Mississippi. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. In another measure to alleviate overcrowding at some schools, the Board sanctioned the construction of mobile classroom units. Published by Houghton Mifflin Company.The American Heritage® Science Dictionary A few months later, CORE organized the first Freedom Ride to desegregate interstate transportation facilities. Core stability refers to a person's ability to stabilize their core.Stability, in this context, should be considered as an ability to control the position and movement of the core. These are usually formed by using small wires to create holes from the surface of the mold to the core. The following year CORE organized "Freedom Rides," sending black and white students south to disrupt segregated interstate bus service. This attribute is especially important for steel casting because a large amount of shrinkage occurs.Except for very small cores, all cores require vent holes to release gases. In 1955 CORE went into the South and provided nonviolence training to demonstrators during the Montgomery, Did you know? The push for common standards shared by multiple states isn’t new.

In 1964, working with the Student Non-Violent Coordinating Committee A. Philip Randolph was the most important civil rights leader to emerge from the labor movement.