, 1925-01-04
Transmission Of Heat
Light and Power
Now Forecast
BY EDNA MARSHALL

who have surveyor past uhu pAoee''
progress and attempted to nppraise
prospects for the immdeinte future
1t will not be long before It 5 pos
sible. under favorable conditions to
oonncct telephone subscribers in tho
United States with telephone SUI
scribers in European countries, pc
hitting them to talk W tn each 9th,
as they would from san Francisco q
New York. in the opinion Of J. D
Ellsworth. vice president OF thu
American Telephone and Telegraph
company.
Through the cooperation OF the
telephone company and the Radio
CORPORATION OF America a group of
men in New York not long ago an
swered quer es sent to them +,
cable from London. England. hay
ing no ~broadcnsting station equipped
to answer back. with installation
by the British Post office of a zoo
k. W. radio telephone plant at their
new station at Rugby. England, OK
nected to be completed with n sly
months, the first real step will be
taken in the direction OF interna
tIonni telephony. The success OF
the experiment between these tw
countries, Mr.. Ellsworth predicts
will be followd by other countries
ioin ng to organize a worldwide sys
tenn.
International Br~oadcasting
International broadcasting. too, is
proving a success. and soon there
will be some progress planned for al
the world. International broad
cast ng of concerts and speeches re
ceived a definite impetus within tho
mast month when the countrie'
which have developed radio to an
degree-the United States, canada
England, France. Germany, Bel
GUM. Spain, Italy. Australia, Ar
gentina. Brazil. Chile. Japan ane
even China-hushed their local send
ing to experiment with long distance
reception. The programs were heard
clearly by stations all yer the world
Light, Heat and Power
one Of Americas leading set
manufacturers is now developing a
system Of transmitting light, heat
and power by radio. which he ex.
poets to have completed in time TO
Introduce it at the second radio
worlds AIR in New York next fall
Another inventor is work ng to
perfect a plan by which receiving
sets can be attached to house cleo
trio currents and the intr .cacies Of
battery hitch-uSs. together with the
need of constant recharging. will be
abolished.
Developments of the radio indus
try In the past year have been as
founding. Radio has become the In
FAINT prodigy Of trades. Following
the automobile, the motion picture
and the airplane. II has taken a
chief place in public interest II
has worked its way into the center
of this nations commef ial life. n
estimates are that the radio indus
try has taken more than $3.50 ,OoO,'
900 out of the pockets of the ma
TONS during the past year and that
more than 80. 900 900 persons Ills
tened in" by radio on the election
campaigns. Manufacturers declare
that within the next year 4'00O,o 600
homes will be equipped with sets OF
the more extensive type.
Scope of the Infant Industry.
An idea Of the. hold radio has
taken on the country may be gain
ed from the fact that there are
$500 manufacturers of radio sup
plies; 1900 wholesale distributors
and jobbers; 10000 retail dealers;
1850 newspapers carrying columns
OF radio programs and news; 30
periodicals devoting their pages ex-
clusively TO radio and so magazines
carrying radio sections.
The accomplishments Of radio
during the past year have been
apace with Its growth in popularity.
Perhaps the most startling OF them
all was the transmission of photo
praphs from London to New York
early in November by the Radio
corporation and the transm ssion
of handwriting only n few days
back. Although photographs had
been sent by telephone from Cleve-
land to New York during the Re
publican national convention and
from New York &c Chicago tho like
nesses OF President Coolidge. Sec
rotary Hughes and others sending
by wireless across the sea was an
astounding achievement. a re luc-
tlon Of the time required for trans
miss on TO half or a third Of the
present Is to 20 minutes with a con
seuuent decrease In the cost Of $500,
will. experts and business men
agree. undoubtedly result in the
commercializing Of the process and
a t%ransoceanic service for bublica.
lions.
Msrconi Predicts Revolution.
Marconi. the ~discoverer OF wire;
less. predicts a revolution I'm radio
with the Innovation OF short wave
'onrih transmission. High power
ed radio s atlons. he says. VIII be
scrapped and replaced by small,
cheap stations doing more at loss
cost. The application Of short wave
length. he says sends messages
and programs with n fraction of
the power necessary hitherto, at a
greater speed and with less likeli-
hood ~ tho .tw,aIa haN-0 affected