Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1922-05-14
By David SnrnnN,

-
tcrcha'gc OF Intelligence. wl.h IA.
growth ana spread NJ radio. rNcu INTO
Isolated communities humanitarian.
educational and soc.ai possibilities
com" into View hitherto euv!sioucl
through no other agency Tut ,u
aprroNinla'" the future % radio we
nNSt understand the record OF It's
past
ksd!o ON INC ocean forced It's way
int" popuiar mariuatipn when the
AIRS; call n distress was flashed by
wireless operator from sinking
shin
RADIO as means - International
communication already mas proved
Itself no, only by service rendered
10 tho genera, public but 10y tho
service IL has rendered - govern
mcn'. 20 Industry ana 10 trade Ana
now radio IN ;hn homo f. hr.ngtuc
entcrta !nmon; ana instruction 10
millions o; peop'e who are jus: DO
ginning :" glimpse me Possibilities
OF tho new at
hu; tn" greater radio. the radio o.
N" future. with its manifold rant
ficst!ous in tho transmission of i'm
ien'Ecnco, ;his i Yet faiH, upon tho
horizon.
Early History
IN" origin o, ra1lO lies IN tie cN-
periucnts ~ Hertz. German sgicn-
list. At the time OF his discovery.
he was using. among various Iahora-
tory devices. an aaparatu, known as
an induction co.l-an electrical do
vice which causes A spark IL on
era ION begins at low voltage. or
eicctrtCal pressure which IL ,h.u
st"ps M TO so hich point that INC
electric discharge or spark Havh..
across between the spark points
Hertz found IN experimenting with
the spark coil thnt no had sct INTO
electrical, Vibration metallic bodies
and VARIOUS electrical devices
knowing that there was no con
nection between those and his send
ing apparatus. he realized that hc
faced new ph",t"IuCuou. fard hv
careful analysis Of the cMcC, of the
current. No came 10 this conclusion
Tha' ether which pcrvad"s every
thing 4, capable or carry.u. cleo
try waves COR, as later defined
electro magnetic wayos'D. and that
these waves travel outward through
the air In alt directions
Mnr"onis invention.
rms discovery was widely pub
lish"d It mount nothing a, tina, mo-
meut however 20 III" general public
or the lay mind just "a the Fin
stein theory. .or example. means
very little to Us today. Yet IL raEiS-
tered WITH a dcru understandings on
IN" mind ~ "A yrar-old youth
Then studying IN Italy -GugllemIo
Maroon
he reasoned that {. :; were true
that The ether carried these electro
n!aEnettc waves, u hy this medium
electric energy could he carried 2,
would be desirable 20 break these
waves ny into series OF dots and
1ashes corresponding to the Morse
alphabet used I'm ordinary ,clcg-
raphN. Having done that. N" ether
could hc employed % do The WORK
hitherto don" IS wire tc,crraphv.
With ,h.s definite Objective r, hc
gan his task HI experimental eN-
,cnsIv"ly and found that. iu order
- send out ihr electric waves -f.
Aciently u was necessary 10 connect
up an Instituted wire suspended In
til" air with one side or The lrduc-
lion coil and IN THIS simple form
CEN" into being the 'rst type OF
wireless sending apparatus ever
usct IN tn" world \ dernIt" rc'urr
phtn was desirable FOR the electrical
circuit, % n" used ~" ground. CON
tAcitng % tE VIE 80 81" other q"
MSS cnnner'lar ~ - aerial 'yl-r lor
antenu6 a. h. d. p. huMa.iy arloi,
Thf wlre. one se-s. SH..,t.G,a uve-
:" many hogset.. ,..w' ar- ,n"s~
ari"rra~
Hav!ng found tie means %: send
ING electro magnetic waves through
me air the next question was hu,v
70 r"ceiv" 'hrw To accomplish tnl.
hs developed an instrument known
IS "ohtr"r th~ s.,p. II WHI-h
was vcry Simple T.. consisted ~ a
small glass 'uoe wI'ntu which v"r"