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insulate

To separate or to shield (a conductor) from conducting bodies by means of
nonconductors, so as to prevent transfer of electricity, heat, or sound.
Webster 3rd

insulating water bottle

In oceanography, an instrument used for the accurate determination of the
temperature of the sea at moderate depths. Also called Nansen-Pettersson
water bottle. CTD

insulator-tube header

One who forms heads on porcelain tube insulators by means of hand capping
press, inserting clay tube in machine and pulling lever to form the head.
DOT

insurance and freight cost

Term showing that these items have been paid by the shipper of
concentrates, metal, etc. Pryor, 3

intake

a. The ventilating passage in an underground mine through which fresh air
is conducted via an adit, drill hole, or downcast shaft to the workings.
b. The passage by which the ventilating current enters a mine.
See also:downcast
for an adit or entry. Fay
c. Scot. Person who works underground at odd work. Fay
d. N. of Eng. Any roadway underground through which fresh air is conducted
to the working face. Trist
e. The passage and/or the current of ventilating air moving toward the
interior of a mine. Long
f. The suction pipe or hose for a pump. Long
g. In hydraulics, the point at which the water or other liquid is received
into a pipe, channel, or pump. Long
h. The headworks of a conduit; the place of diversion. Seelye, 1

intake area

That part of the land surface where water passes downward on its way to
the zone of saturation in one or more aquifers. See also:recharge

integral pilot

A pilot-type noncoring bit having a pilot section that is an integral,
nonreplaceable part of the bit. Long

integrated producer

A producer of metal who owns mines, smelters, and refineries, and
sometimes also fabricating plants. Wolff

integrated train

A long string of cars, permanently coupled together, that shuttles
continuously back and forth between one mine and one generating plant, not
even stopping to load and unload, since rotary couplers permit each car to
be flipped over and dumped as the train moves slowly across a trestle.

integrating meter

A meter that records the total quantity of liquid or electricity passing
through it. Hammond

integration

In petrology, the formation of larger crystals from smaller ones by
recrystallization. Goldman

integrator

A circuit whose output is substantially proportional to the time integral
of the input. NCB

intense anomaly

An anomaly whose elemental values rise sharply to one or more well-defined
peaks.

intensity

As applied to color, the comparative brightness (vividness) or dullness or
brownishness of a color; its comparative possession or lack of brilliance;
therefore, the variation of a hue on a vivid-to-dull scale.
See also:tone

intensity of magnetization

The magnetic moment per unit volume. AGI

intensity of pressure

The pressure per unit area. Seelye, 1

intensity of radiation

The energy per unit time entering a sphere of unit cross-sectional area
centered at a given place. The unit of intensity is the erg per square
centimeter second or the watt per square centimeter. NCB

intensity scale

A standard of relative measurement of earthquake intensity. Four such
systems are the Mercalli scale, the modified Mercalli scale, the Richter
scale, and the Rossi-Forel scale.

interbedded

Occurring between beds, or lying in a bed parallel to other beds of a
different material. Syn:interstratified
Fay

interburden

Material of any nature that lies between two or more bedded ore zones or
coal seams. Term is primarily used in surface mining.
Federal Mine Safety

intercalated

Said of layered material that exists or is introduced between layers of a
different character; esp. said of relatively thin strata of one kind of
material that alternates with thicker strata of some other kind, such as
beds of shale intercalated in a body of sandstone. CF:interbedded
AGI