In electrical engineering and materials science, the coercivity, also called the magnetic coercivity, coercive field or coercive force, is a measure of the ability of a ferromagnetic material to withstand an external magnetic field without becoming demagnetized. An analogous property, electric coercivity, is the ability of a ferroelectric material to withstand an external electric field without becoming depolarized.
For ferromagnetic material the coercivity is the intensity of the applied magnetic field required to reduce the magnetization of that material to zero after the magnetization of the sample has been driven to saturation. Thus coercivity measures the resistance of a ferromagnetic material to becoming demagnetized. Coercivity is usually measured in oersted or ampere/meter units and is denoted HC. It can be measured using a B-H analyzer or magnetometer.
Ferromagnetic materials with high coercivity are called magnetically hard materials, and are used to make permanent magnets. Materials with low coercivity are said to be magnetically soft. The latter are used in transformer and inductor cores, recording heads, microwave devices, and magnetic shielding.
there is blood on the street
and tears in their eyes
and life moves so fast
until you realize...it's gone
the world is a corpse
it hardens with time
and so harden the hearts
as they draw to the line
the fear that you feel
shows white on your face
though you mock death with words
you wonder is there a place...
where darkness there dwells
in the black pits of hell
is there truly the desolate place
the gnashing of teeth
the screaming beneath
stillness of pain, time, and space
where pain is your king
there are no living things
merely you and the fire you chose
hope has gone past
realization at last
this fate you chose as your own
death - drop your pride and fear
to death - no hiding here
death - Christ made a way
to death - before it's too late
death to death
now you can have right now you
must have faith in God and Son
you have failed all hopes you have impaled
can't you see the war has been won
no matter what you've done
he's the forgiving one place it at his feet
he'll take you in his arms
forever in his arms