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Acoustic telegraphAcoustic A*cous"tic (#; 277), a. [F. acoustique, Gr. ?
relating to hearing, fr. ? to hear.]
Pertaining to the sense of hearing, the organs of hearing, or
the science of sounds; auditory.
Acoustic duct, the auditory duct, or external passage of
the ear.
Acoustic telegraph, a telegraph making audible signals; a
telephone.
Acoustic vessels, brazen tubes or vessels, shaped like a
bell, used in ancient theaters to propel the voices of the
actors, so as to render them audible to a great distance. Duplex telegraphyDuplex Du"plex, a. [L., fr. duo two + plicare to fold. See
Two, and Complex.]
Double; twofold.
Duplex escapement, a peculiar kind of watch escapement, in
which the scape-wheel has two sets of teeth. See
Escapement.
Duplex lathe, one for turning off, screwing, and surfacing,
by means of two cutting tools, on opposite sides of the
piece operated upon.
Duplex pumping engine, a steam pump in which two steam
cylinders are placed side by side, one operating the
valves of the other.
Duplex querela [L., double complaint] (Eccl. Law), a
complaint in the nature of an appeal from the ordinary to
his immediate superior, as from a bishop to an archbishop.
--Mozley & W.
Duplex telegraphy, a system of telegraphy for sending two
messages over the same wire simultaneously.
Duplex watch, one with a duplex escapement. Electro-telegraphic
Electro-telegraphic E*lec`tro-tel`e*graph"ic, a.
Pertaining to the electric telegraph, or by means of it.
Electro-telegraphy
Electro-telegraphy E*lec`tro-te*leg"ra*phy, n.
The art or science of constructing or using the electric
telegraph; the transmission of messages by means of the
electric telegraph.
Facsimile telegraphFacsimile Fac*sim"i*le, n.; pl. Facsimiles (-l?z). [L. fac
simile make like; or an abbreviation of factum simile made
like; facere to make + similes like. See Fact, and
Simile.]
A copy of anything made, either so as to be deceptive or so
as to give every part and detail of the original; an exact
copy or likeness.
Facsimile telegraph, a telegraphic apparatus reproducing
messages in autograph. Hertzian telegraphyHertzian Hertz"i*an, a.
Of or pert. to the German physicist Heinrich Hertz.
Hertzian telegraphy, telegraphy by means of the Hertzian
waves; wireless telegraphy.
H. waves, electric waves; -- so called because Hertz was
the first to investigate them systematically. His
apparatus consisted essentially in an oscillator for
producing the waves, and a resonator for detecting them.
The waves were found to have the same velocity as light,
and to undergo reflection, refraction, and polarization. Indicator telegraph 3. (Mech.) The part of an instrument by which an effect is
indicated, as an index or pointer.
4. (Zo["o]l.) Any bird of the genus Indicator and allied
genera. See Honey guide, under Honey.
5. (Chem.) That which indicates the condition of acidity,
alkalinity, or the deficiency, excess, or sufficiency of a
standard reagent, by causing an appearance, disappearance,
or change of color, as in titration or volumetric
analysis.
Note: The common indicators are litmus, trop[ae]olin, phenol
phthalein, potassic permanganate, etc.
Indicator card, the figure drawn by an engine indicator, by
means of which the working of the engine can be
investigated and its power calculated. The Illustration
shows one form of indicator card, from a steam engine,
together with scales by which the pressure of the steam
above or below that of the atmosphere, corresponding to
any position of the engine piston in its stroke, can be
measured. Called also indicator diagram.
Indicator telegraph, a telegraph in which the signals are
the deflections of a magnetic needle, as in the
trans-Atlantic system. Needle telegraphNeedle Nee"dle, n. [OE. nedle, AS. n?dl; akin to D. neald, OS.
n[=a]dla, G. nadel, OHG. n[=a]dal, n[=a]dala, Icel. n[=a]l,
Sw. n[*a]l, Dan. naal, and also to G. n["a]hen to sew, OHG.
n[=a]jan, L. nere to spin, Gr. ?, and perh. to E. snare: cf.
Gael. & Ir. snathad needle, Gael. snath thread, G. schnur
string, cord.]
1. A small instrument of steel, sharply pointed at one end,
with an eye to receive a thread, -- used in sewing.
--Chaucer.
Note: In some needles(as for sewing machines) the eye is at
the pointed end, but in ordinary needles it is at the
blunt end.
2. See Magnetic needle, under Magnetic.
3. A slender rod or wire used in knitting; a knitting needle;
also, a hooked instrument which carries the thread or
twine, and by means of which knots or loops are formed in
the process of netting, knitting, or crocheting.
4. (Bot.) One of the needle-shaped secondary leaves of pine
trees. See Pinus.
5. Any slender, pointed object, like a needle, as a pointed
crystal, a sharp pinnacle of rock, an obelisk, etc.
Dipping needle. See under Dipping.
Needle bar, the reciprocating bar to which the needle of a
sewing machine is attached.
Needle beam (Arch.), to shoring, the horizontal cross
timber which goes through the wall or a pier, and upon
which the weight of the wall rests, when a building is
shored up to allow of alterations in the lower part.
Needle furze (Bot.), a prickly leguminous plant of Western
Europe; the petty whin (Genista Anglica).
Needle gun, a firearm loaded at the breech with a cartridge
carrying its own fulminate, which is exploded by driving a
slender needle, or pin, into it.
Needle loom (Weaving), a loom in which the weft thread is
carried through the shed by a long eye-pointed needle
instead of by a shuttle.
Needle ore (Min.), acicular bismuth; a sulphide of bismuth,
lead, and copper occuring in acicular crystals; -- called
also aikinite.
Needle shell (Zo["o]l.), a sea urchin.
Needle spar (Min.), aragonite.
Needle telegraph, a telegraph in which the signals are
given by the deflections of a magnetic needle to the right
or to the left of a certain position.
Sea needle (Zo["o]l.), the garfish. PantelegraphPantelegraph Pan*tel"e*graph, n. [Pan- + telegraph.]
See under Telegraph. PhototelegraphPhototelegraphy Pho`to*te*leg"ra*phy, n.
Telegraphy by means of light, as by the heliograph or the
photophone. Also, less properly, telephotography. --
Pho`to*tel"e*graph, n. -- Pho`to*tel`e*graph"ic, a. PhototelegraphicPhototelegraphy Pho`to*te*leg"ra*phy, n.
Telegraphy by means of light, as by the heliograph or the
photophone. Also, less properly, telephotography. --
Pho`to*tel"e*graph, n. -- Pho`to*tel`e*graph"ic, a. PhototelegraphyPhototelegraphy Pho`to*te*leg"ra*phy, n.
Telegraphy by means of light, as by the heliograph or the
photophone. Also, less properly, telephotography. --
Pho`to*tel"e*graph, n. -- Pho`to*tel`e*graph"ic, a. Radiotelegram
Radiotelegram Ra`di*o*tel"e*gram, n.
A message transmitted by radiotelegraph.
Radiotelegraph
Radiotelegraph Ra`di*o*tel"e*graph, n. [Radio- + telegraph.]
A wireless telegraph.
Radiotelegraphic
Radiotelegraphic Ra`di*o*tel`e*graph"ic, a.
Of or pertaining to radiotelegraphy; employing, or used or
employed in, radiotelegraphy.
Radiotelegraphy
Radiotelegraphy Ra`di*o*te*leg"ra*phy, n. [Radio- +
telegraphy.]
Telegraphy using the radiant energy of electrical (Hertzian)
waves; wireless telegraphy; -- the term adopted for use by
the Radiotelegraphic Convention of 1912.
Telegram
Telegram Tel"e*gram, n. [Gr. ? far + -gram.]
A message sent by telegraph; a telegraphic dispatch.
Note: ``A friend desires us to give notice that he will ask
leave, at some convenient time, to introduce a new word
into the vocabulary. It is telegram, instead of
telegraphic dispatch, or telegraphic communication.'
--Albany [N. Y.] Evening Journal (April 6, 1852).
Telegrammic
Telegrammic Tel`e*gram*mic, a.
Pertaining to, or resembling, a telegram; laconic; concise;
brief. [R.]
telegraph creepersCreeper Creep"er (kr[=e]p"[~e]r), n.
1. One who, or that which, creeps; any creeping thing.
Standing waters are most unwholesome, . . . full of
mites, creepers; slimy, muddy, unclean. --Burton.
2. (Bot.) A plant that clings by rootlets, or by tendrils, to
the ground, or to trees, etc.; as, the Virginia creeper
(Ampelopsis quinquefolia).
3. (Zo["o]l.) A small bird of the genus Certhia, allied to
the wrens. The brown or common European creeper is C.
familiaris, a variety of which (var. Americana) inhabits
America; -- called also tree creeper and creeptree.
The American black and white creeper is Mniotilta varia.
4. A kind of patten mounted on short pieces of iron instead
of rings; also, a fixture with iron points worn on a shoe
to prevent one from slipping.
5. pl. A spurlike device strapped to the boot, which enables
one to climb a tree or pole; -- called often telegraph
creepers.
6. A small, low iron, or dog, between the andirons.
7. pl. An instrument with iron hooks or claws for dragging at
the bottom of a well, or any other body of water, and
bringing up what may lie there.
8. Any device for causing material to move steadily from one
part of a machine to another, as an apron in a carding
machine, or an inner spiral in a grain screen.
9. pl. (Arch.) Crockets. See Crocket. Telegraph plant
Telegraph plant Telegraph plant
An East Indian tick trefoil (Meibomia gyrans), whose lateral
leaflets jerk up and down like the arms of a semaphore, and
also rotate on their axes.
Telegrapher
Telegrapher Te*leg"ra*pher, n.
One who sends telegraphic messages; a telegraphic operator; a
telegraphist.
Telegraphist
Telegraphist Te*leg"ra*phist, n.
One skilled in telegraphy; a telegrapher.
Telegraphone
Telegraphone Te*leg"ra*phone, n. [Gr. th^le far + -graph + ?
sound.]
An instrument for recording and reproducing sound by local
magnetization of a steel wire, disk, or ribbon, moved against
the pole of a magnet connected electrically with a telephone
receiver, or the like.
Telegraphoscope
Telegraphoscope Tel`e*graph"o*scope, n. [Gr. th^le far +
-graph + -scope.]
An instrument for telegraphically transmitting a picture and
reproducing its image as a positive or negative. The
transmitter includes a camera obscura and a row of minute
selenium cells. The receiver includes an oscillograph, ralay,
equilibrator, and an induction coil the sparks from which
perforate a paper with tiny holes that form the image.
telegraphy or telegraphWireless Wire"less, a.
Having no wire; specif. (Elec.), designating, or pertaining
to, a method of telegraphy, telephony, etc., in which the
messages, etc., are transmitted through space by electric
waves; as, a wireless message.
Wireless telegraphy or telegraph (Elec.), any system of
telegraphy employing no connecting wire or wires between
the transmitting and receiving stations.
Note: Although more or less successful researchers were made
on the subject by Joseph Henry, Hertz, Oliver Lodge,
and others, the first commercially successful system
was that of Guglielmo Marconi, patented in March, 1897.
Marconi employed electric waves of high frequency set
up by an induction coil in an oscillator, these waves
being launched into space through a lofty antenna. The
receiving apparatus consisted of another antenna in
circuit with a coherer and small battery for operating
through a relay the ordinary telegraphic receiver. This
apparatus contains the essential features of all the
systems now in use.
Wireless telephone, an apparatus or contrivance for
wireless telephony.
Wireless telephony, telephony without wires, usually
employing electric waves of high frequency emitted from an
oscillator or generator, as in wireless telegraphy. A
telephone transmitter causes fluctuations in these waves,
it being the fluctuations only which affect the receiver.
Meaning of Telegra from wikipedia
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Telegram Messenger,
commonly known as Telegram, is a cloud-based, cross-platform,
social media and
instant messaging (IM) service. It was
originally launched...
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April 7, 2014.
Retrieved December 5, 2017. "Hewlett-Packard Co
acquires Telegra Corp". The
Alacra Store.
Retrieved October 22, 2008. "HP Buys Transoft...
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Later this name was...
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Telegra.ph.
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