The sun. [volume] (New York [N.Y.]) 1833-1916, 1876-02-06

number NJ vibrations per second, like tuning
FORK. his Is pls ed between two electric mag
nets, IKE those ueed In ordinary telegraph in
ruucnts. One Of these Ia stronger than the
other Of course the stronger magnet Will at
tract me steel bar. ana would retain IL In sta
uona.y c'ndltl. H. nut fora coutrivincc to pro
vent that result. This consists Of a snring ON
tithcr siue ~ the steel har. When the bar
tou' tes tue cot. the sp ~ tou 'hes wire,
which shuts N the currcn, and the attraction
oi the coil Tor the b INSTANTLY ceases. The bar
then III To tho other magnet, VIII re the pru-
cess u repeated, and so II continues to Vibrato
between TIE two, the rate Of vibration being
uniformly at to which II - "tuued." This In
Struuct H. operated ON 10y "a sunll local battery.
] ht-c is also main battery -, saw. ltv cells.
] hi battery sends a constant current over the
any otnet effect than that which is produced by
a current y ing through "a circuit IN the Morse
syst'm. But II the battery Is connected with
tue Vibrator, the currcnt 4. cut IN into quotations
N the stc'i TAR, and 40 that form reaches the
receiving ,nicer. For tins purpose IN ordinary
Morse Key Is used. When the key b. closed. the
main liuc ~ connected with the vibrator, and
the vibrations nrc sent over the wire. Nhcn Tire
kc' Is oucucd, tie Vibrator has mo- effect upon
the current that Is passing over the main line.
Inc elect at TIE receiving otlicc g. this: When
tne Key is closed, The receiving lar vhra'c~ at
the same rate 40 the sending lar, and cmi's a
c"tiesi "ud ns tone. When the key j. open the
ceiNing har is silent. 1t viii be- easily sen how
the nlaninul tion - the Morse key at the s,nd-
ing once eau be made to produce tie eject OF
uvts aud da-hrs at the receiving Office.
g. IN the experiment that Was tiled here on
Saturday, there were eigut II these instrut rnta.
ehrh having It's own battery. but al cunnc.ttd
with one wire. over this wire the vlbratiOns II
all these eight tran -mitters sent u once IN
a prumiscuuus jumllc. The que tiOu will immc-
dtutelN suggest itself, how was the confusi IN Of
sounds intcrprctedr How were the eight mes
cages separated each from the Others ut the
other end Of the wife2 The answer to this IL
found IN the principle II the science Of sound
which was stated ut the beginning of this att
Gle Each Of the bars In the transmitting instru-
ments Is tuned to separ tie tone, or rate Of
VIBRATION 50 on each " the receiving insfru-
ments there Is tar tuned to CORES pond with
one OF the bars at the other end. Elch OF those
bars is placed on a sounding box, which T. also
tuned to correspond with II, the oil iect being to
increase TIC sound. SO ne to make IL intelliriblc
TO the receiving operator. As the .rcOn II
sounds or pulsfttuus passes over the wire. each
receiver picks out and repeats the tone t. " tCh
~ IN tuned. ana " silent as to the othct-. Thus
the BABEL Is siftcd aud distributed. u il as "
eight persons were tdlkiug in room. 10 one
person standing IN the middle and listening to
all. the noise would bc quite uututCliig bic, Tut
n each Of The takers addressed hiuself to "a sin
ale listener, the Latter might be aUle to uuder-
Nfst