The Cairo bulletin. [volume] (Cairo, Ill.) 1872-1878, 1877-04-17
IL this marvel 90 be the Next Achieve.
ment Of Modern OcienC~9
To the Editor OF the n. Y. Sun /:


SIR:-An eminent scientist OF this
city, whose name Is withheld for the
present, Is said to be on the point of pub
fishing series Of important discoveries,
aud exhibiting an instrument invented
by him, By means OF which objects or
persons standing or moving in any part
OF the world may be instantaneously seen
anywhere and by anybody. The utility
OF the electroscope is undeniable, and II
the invention proves successful, 1t will
nary methods OF teleyraphic and tele.
phonic communication. BY means OF
the electroscope merchants will be able
10 exhibit their goods, or samples Of
them, TO any customer supplied
with the sape Instrument.
whether in Liverpool, Lon don, Paris,
Berlin, Calcutta, Pekin, San
Francisco, or New Orleans, Fug.
tive criminals placed in the electrosGope
can be instantly identified by the police
authorities .in any part OF the globe.
Mothers, husbands, and lovers Will be
enabled to glance AT any time at the very
persons OF their absent children, wives,
or beloved ones. Painters may retain
their paintings ia their studio. and yet
exhibit them simultaneously in all the
galleries OF Europe and America provided
with the invention. Scholars are thus
enabled to consult in their own rooms
any rare or valuable work or manuscript
IN the British museum, Louvre, or Vat
lean. by simply requesting the librarians
to place the book. opened at the desired
page, into this marvellous apparatus.
The electroscope will undoubtedly SUI
percede the ordinary methods OF tele-
~ a.
long or how short may be the message
transmitted by IL, not 10 speak 81 the ad.
vantage OF being able to read, when de-
sired, the original dispatch in the hand
writing Of the sender.
And further, in case the telephone,
the new Instruments tor carrying musi-
cal sounds, should succeed also In trans
hitting ordinary conversations, combi-
nation OF the electroscope and telephone
will be made which will permit people
not only actually TO converse with each
other, no matter how far they are
apart. but also to look into each others
eyes and watch their very Inien, express
sion, gesture and motion Willie in the
electrosc0pe. Both telephone and cleo.
troscope, applied Oh large scale, would
render it possible TO represent at one
time, on a hundred stages in various
parts OF the world, the opera or play
sung or acted in any given theatre. The
actors and singers will present, Of course.
a certain ETHEREAL appearance, when thus
viewed from great distance, which how
ever, will not always prove really un-
pleasant to the audience.
The invention Ia based, a. Tar as known,
on the principle Of transmitting the
waves OF light given out by objects, Ia
manner similar to the transmission OF
sound waves by the telephone. Every
body knows that the sensations OF color
which we perceive are due to the varying
strength aud rapidity OF the fluctuations
OF light, emanating from the object we
look upon. Now, the electroscope con-
-ists, to all outward appearance, Of two
empty boxes or rooms, according TO the
size required. One OF the compartments
IL the transmitter. the other the receiver.
In both compartments one side or wall
presents the ends Of multitude OF quasi
electric wires ola peculiar make and
consistency. Each Of these innumerable
wires transmits with the utmost accuracy
the iaintest and strongest I'M
dulatlons Of every delicate or heavy
wave Of color that strikes It
horizontally from some object or persons
opposite TO il. Thus many thou sands Of
wires OF thickness OF line carry con-
jointly the fluctuations Of color emana-
ting from painting less than a foot
square. The wires are twisted outside
OF the instrument into cable, which
may be extended to its destination above
or below ground, or through the water.
On entering the receiver the cable Is un-
twisted, and each tiny wire il made 10
occupy again Its proper position In the
side or wall Of the compartment. The
box, or room. acting as the receiver.
differs from the transmitter In being
constantly kept filled with newly-dis.
covered gas, sort of magnetic electric
ether. in which the currents OF light or
color become respondent again, and by
means OF which the objects or persons
present at the time In the transmitter.
are reflected as accurately as In mirror.
ELECTRICIAN.
New York, March 2s.