New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1899-05-14
WIRELESS TELEPHONING.
SOUND OF THE HUMAN VOICE CONVEYED
BY HEAT RAYS.
INTERESTING FEATURES OF THE ELECTRICAL
SHOW AT THE MADISON SQUARE GARDEN
"A MINIATURE THEATRE. WITH
MODELS OF STAGE
SCENES.

A MINIATURE THEATRE Win
MODELS OF STAGE
SCENES
A novel and beautiful exhibition was given AZ
the Garden Yesterday afternoon to representatives
OF the press A method OF telephoning wh.ch USE
the beam of radiance from searchhgn' !" p'a''
OF q wire shown. 81,
At one end Of the Garden. In the upper saneiy'
was placed an arc light with the familiar comca''
or raroho,,c mirror Of the searchght behind H.
When the current was turned on the peaH was
projected 10 the opposite end OF the man, WIZ
a simple device used for receiVihe' ~
transmitting end one noticed that from en- -
the two main wires supplying current 10 inc 81, !
short wires ran off to adjacent telephone ooo.i'
Irs,da the latter was transmiter that looked TOT
ALI the world like any other. but dinered tnerei,o''
IN minor details. From the way In which ,ne W.
were connected 1t was easy 10 see th"' nv ~ 49,.
current flowed through the carbon pencns VI .uo
lamp, but n small part "e"' "
telephone transmitter - .,.,
a. .h raos,y,ng end the apparatus was even
mora simpIe in appearance. There was aiheu W"
ard the distant arc light another paraoo'. ,o,
a bell-shaped vessel whose lining was "'ey
,sbed and whose Interior curves were
calculated tiny bulb. no bigger 'nni' ''", ,,a
thermometer was fastened In the DELL az W
49, % ,he norabola and from this there extehoeu
hack through the metal short. slender siaSs ~
that connected with the earpiece OF piiooe -
There was no electrical equipment Whatever "
receiving end. The person who put the Twin ~
ber-tpped tubes into his ears hearu ho' ~ a,a,-
notes Of cornet but also human Speech enia"a
49,. ,ha closed booth at the other end OF the
hall. - .. .o bv
The receiving device was invented years u.s.
A. Graham Bell but the transmitter snom" os.h,,
dav a vast improvement on Bell s. was L., -
Hammond " Hayes OF the American pv'I
,hona Comnany. Bell thought that the viorauo".
90 iohf
.on tb,t the medium Of communication j. "ie
rat raw Perhaps 1t would DC more accuia'e ~
saw that the heat emitted from the arc 70 49,
IN fluctuations in intensity by means VI '
nbone transmitter and tnat these iuctua ..
actuate the stuff In that tiny recei'i"s '
be converted into sound waves -
~ 90 da,a q distance OF only two miles mas De'"
oovered but the invention is yet In only III eNPe''
mental stage of development
FEATURES OF THE SHOW.
II there is a limit to electricity or 10 sp"Ce %
question that cannot be solved al MAuison ..,1o.
Garden where the Electrical Show VIII enter uPo
It's second week tomorrow, and VIII renah o.
attraction until the early part OF next moh''"
when the first electrical exhibition was gwen IL
Newyork everybody wondered at IT, ana people
seemed 10 be afraid Of electricity Ihat was '"Iee
wears ago and since that time there mas oee' "
other exhibition In Madison square uaiue'' "
which there was much TO see and OF WHICH ,ne'e
was n good deal 10 remember, TOT Dodts "ei0 "'O'
I'd in the tank by means OF wireless teleeraphy
and there were The air and rumble OF war in the city
and In the Garden Now there Is an eNhioi'ion
where the wireless telegraph that was theh useu
for exploding mines IS quietly demonstrated upon
glass table In the balcony and people have no rea
son TO wonder for the explanations are given
plainly by the man who does the work and gives to
every visitor a message that has been sent printed
by the Morse telegraph signals.
II is not all wireless telegraphy and the telephone
system that attract the people at Madison square
Garden for electricity is practically harnessed In
this exhibition and is one OF the exhibits. VISITORS
seeing the Harvesting. 1t is not a big exhibit and
is 10 be found next TO the X-rays, but 1t Is known
as the hgh-tension effects. and an interested crowd
is always near 1t. 1t has beea caied artificial
lightning: perhaps It is, but II is very like the
original, and It rings bells. lights lamps and when
II takes a notion to jump through piece OF pine
plankng II goes through.
NEW INVENTIONS AND IMPROVEMENTS.
Electricity TO the scientific and to experts seems
10 be unlimited. and each electrical show
new inventions and improvements or old ones APP
pear. the people find out how 1t Is applied in every
avenue and industry. Take the automobiles. for
instance; they are scarcely, curiosity although
FRANCE 1t was mildly suggested that the horses
heard in derision of the new style OF vehicles; but
the vehicles here and In Madison Square Garden
make better showing than has ever been made
In electrical lighting. by and incandescent
1t makes one dizzy 70 attempt 10 count the lamps,
and when IL is realized that the field of light is
never altered, IL shows perfection In the applca-
ton OF power and addi2na! perfection in the man
ufacturs Of the s aT ps me nat S effects are
prises for the audience In the manipulation OF the
are small in themselves. but exert an influence
that cannot be measured when applied to electrical lea,
latest step in electric lighting shows a lamp OF
which the ncandescent material Wlthstands excess
air and needs no glass covering whatever il
can be operated Just as II stands. and from alter
current is used IT is said TO last longer. d.
AN ELECTRICAL MODEL ROOM.
Electrical effects are not. however, confined
tirely illumination TO motors. to the fusing
OF metals They found in interesting
hibt downstairs. which includes electrical model
ROOM In which the models are contributed by the
scenic artists of the various theatres. This is the
first exhibition OF the kind made In America. al
exhibitions of scenic models. There are thirty
models at the Garden, one of these representing an
demonstrated with an electrical switchboard, oper
ated TO show the gradual changes from day
the changes Of light are effected by muiti-colored
the annse o gh rom the ss
blue of night to dawn, daylight, noon, afternoon,
There is also a complete working model OF the
apparatus and means used In theatres by which the
onstratons made OF the manner OF setting scenes
which adds TO the interest. This Is OF the ex
hibts popular with women and children.
THE BASEMENT TRANSFORMED.
The scenic effects In the basement. which include
an electrical cave and q grotto scene, have trans
formed the Garden. and 1t is little bewdering to
the visitor amid all the lights The tank, with
woman diver working under water with search
light is an adjunct OF the electrical show demon
strating the application OF electricity to submarine
work
There is so much in the show to be looked at
that discrimination Is difficult The rapid high
speed engines working on the main floor, print
ing presses doing special color work and changes
are being made at many OF the booths in electrical
scenes and illumination The United States Coy
the field telegraph and telephone service and relies
~ the war and curious things which invented