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which will alSO identify any qualllicalions to the
permission to reproduce.
modlfled Julfen stay-An abbreviated form
of Ihe Julian day which requires Iewer digits and
translates the beginning of each day from
Greenwich noon fo Greenwich midnighl:
obfained by subtracting 2400000.5 from Julian
daya.
modlfled Lambert conformaf chart— A
chart on the modified Lamberf mnformal map
projection. Also called Ney’a chert.
modified Lambert conformal map
projactlon—A modification of the Lambarl
conformal projection for use in Wler regions,
one of fhe standard parallels being at latitude
89°5958- and fhe ofher at Iafi!ude 71° or 74”,
and the parallals being expanded slighlly to
form complefe Concanlric circles, Also called
Ney’a map protection.
ISSOdlfled polyconlc map pro]action— A
map projecfiorr obtained from lhe regular
polymnk projection by so allering the scale
afong the central meridian thal the scale is exact
along fwo standard meridians, one on either
side of the cenlral meridian and equidistam
therefrom. Also calied rectangular polyconic
mep projection.
modufatlon arror—in electronic distance
measuring equipment, the difference in
modulating frequencies obtained from crystals,
between fhe actual frequencies of the crystais
and the frequencies required for a correct
distance measurement
modulatloh—A variation of some characteristic
of a radio wave, called the carrier wave, in
accordance with Inslanlanaous values of
another wave called the modulaflrrg wave.
Thase variations can be amplitude, f~equency,
phase, or pulse.
molr6-An interference pallern resulling from
the overlaying or oveprinling of halflones or
tints whose screen angles are not sufficiently
separated to make the patlern inconspicuous or
fo preclude a pattern accuracy.
mofd afteraflons—The slight modification of
the fandforms of the mold, often necessary in
local araaa in order to obtain proper register due
to unequal afretch required to accommodate the
Iandtorrns on a plaslic relief map.
MIL-HDBK-850
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molded aerial phonograph—A vertkal aerial
phonograph, usually annotated with mlfiiafy
symbols, which has been iormed to show terrain
configuration.
Molitor preclae Ievelfng rod—A spaaking
rod of T-shaped cross section, with graduation
marks shaped as friarsgles and rectangles, the
smallesf div~ton baing two milfimetere. Read by
estimation to singla milfimetara. Equipped whh
thermometer and circufar feval.
Mollwelde homalographlc map
projection—An equal-area map pro)ecflon
showing the Equa!or and geographic pSralfelS
as alraighl lines, and tha geographic merid!ana
as elliptical arcs, with the exception of fhe
central meridian, represented by a straight line,
and the meridian 90” from the center, shown as
a lull circle.
moment of lnerfla-The quanfity obtained by
mu kiplying the mass of each small part Of a
body by the square of ils dktance from an Ssis,
and adding all tha resuffs.
momentum-uanlity of motion. Linear
momentum is’ tire quantity obtained by
multiplying the mass of a body by Its finear
speed. Angutar momentum is fhe rJJan!ilY
obtained by multiplying tha momant of Inarfia of
a body by its angular speed.
momenl—A Iendancy to cause rotation about
a point or axis, as of a corrfroi surface abour ~s
hinge or of an airplane about its center of
gravity; Ihe measure of fhis tendency is equal to
the producf of the force and the perpandsular
distance belween Ihe point of axis of rotation
and the fine of action of the force.
monochromBfor—A dispemlve devka fOr
isolation of narrow ~tilons of the spectrum.
monochrome—A single hue or color.
monocomparator—A precision instrument,
consisting of a measuring system, a viewing
sysf em, and a readout sysfem designed for the
measurement of Image coordinetea on a eingfe
phonograph.
monoscoplc [mono) lmaglng—A eingle
image taken of the iargaf.
monoscoplc rev falon—Exfracfion ‘of Image