The Daily times. [volume] (Richmond, Va.) 1886-1889, 1888-11-17
HISTORY or TelEGRkpHY.
Electrical Phenomena Noted II. G. COO
Progress of Discovcry-Thc Telephone.


Electrical Phenomena Notod II. G. GOO
Progress of Discovery-Thc Telephone.
Six hundred years b. C., Thales. Of
Milete. noted the electrical phenom-
cna and developed by friction upon
amber; 300 years later Plato theOrized
upon electricity, and a. d. 1922 Mar
lingo, \Metian. the engineer in de-
tense Of Rhodes. applied one end of a
drum head at the end Of his counter
mine IA discover the vicinity and
direction Of the cnomy's underground
galleries, and thus, by utilizing the
molecular disturbance Of the earth IN
sound wavcs. Conceived The basis Of
telephony il Was not however,
until a d. 1880 that Won Guerick
nala the first machine for generating
frictOnal electricity, Tor until =. ID.
1726. that Wood recorded the fact that
fuoqonal electricity would pass
through % considerable lcngth OF wire,
ard could therefore be utilized for the
Transmission # signals To Wood Of
England, l. therefor due the honor
of lr-t suggesting tue feasibility Of
clccAle teicgraphE.
y. ID. Loo rl,irsghonDro@, Ger
many. invented the Lnyden jar by
when means liic'ioii'i eiec,ilcily
could bc stored for experimental pur-
PoseS "a. j.. ga, 1T. W dl7'l'' Ei'S
lnnd, erected tine Niri Telegraph me
between Nao''cf, I'm an" i4'l"oh'
ana y. ~. If'3' q. a. .Dei, I've" 10 DE-
th3'i,i'll"'' oil N'iNii's ii.'} news PuD
Ilai.' ,N. manner III w i''D'l H. i'.''' ii'
uiDas'l ''' -' v' 'ii' "il"'.'''o'
through st tenn OF lHeh' y-7iH "if+S'
by iucuonfl clee.ii'itf. D'liiS inc
latter ham oi Tie Lisnieenih century
inventors o. a-i Aaiiohs cnueAForoui
by means - two 'r more WAH5 ana
lric.1onal 'iec'il''[t 10 'i",i''''lt III,
lchlgehce D'i"'ch uial.it pi..tea' Du1
II was not until A. D. lo0o' Wncln
Volta proclaimed ms own and Cal
vani g prior experiments ~ the prOduc-
ton of chemical electricity, that cleo
Uric biography. as NOW developed, be
came practicable.
A. ID 1919, OerS.cd denmark dis
covered that a freely suspended mag
neiized needle would move TO the
rght or left Ia accordance with the
polarity of current of electricity
through an adjacent wire A. ID.
1920. AragO France discovered that
when a bar Of soft iron was wound
with copper or insulated iron wire, IT
became amaguct wheneycracurrentOf
electricity traver,ol the wire, and was
Immediately demognctized Tor nearly
sol when the wires were disconnected
from the source of current.
a. D. 1872. Fmaday England dis
covered that when coil of insulated
wire was placed adjacent 10, lat not
connected with, another coil OF wlrc,
through which m intermittent current
of electricity w9s passed, induced cur
rent, of increased intensity and alter
mating polarity were developed III the
unattached coil Also that tho move
ment If permanent bar magnet With
in coil of wifo on the movement OF
m oietiro-magnct near The po. ss OF a
perm1uontmlgnot would develop cur
rents of electricity To the foregoing
fundamental discoveries 81 Calrani ana
Volta. Oer,ted. Alago and Fn7day Is
Nie world indebted for the numerous
subsequent inventions which have de-
vcloped electric biography pl2img-
illumination, transmission OF power
and other valuable results attained
during the Nineteenth century.
From Woods inst conception or an
electro telegraph, A. j. l126 more than
century elapsed before Cooke and
Whoatgono England, A. ID $50
adapted Oerstcd's discovery OF A. d.
1879 " the first practical ana com
mcrc.aliy successful system OF "hal
may Toe termed visual electro teiegra
phv. and some months later Morse and
vail. United States, adapted Arago's
discovery Of 4. -. 1920, % the iirst
system of recording electric telegra
ply. Vail being the inventor Of the
dot and dash alphabet
adapted Oersted's discovery to the iirrsI
recorded system Of sound oraural tele
graphy, and first utilized the earth N
Geu OF a second vino or all metallic
circuit 1t Is by 100 means certain ina