The Filer record. (Filer, Idaho) 1919-1930, 1922-05-04
"a DO
III q
PROGRESS OF RADIO
THROUGH THE YEARS
Wireless Research Began Long
Ago, But Development Has
Been Swift Lately.

Wireless research started many
years ago, as far back even as 1877.
Even the radio telephone is not re-
cent perfection rather IL is that intro
duction to the layman OF the human
voice and music has suddenly popular
lied something that wireless men had
thought a pastime or amusement. Here
Is the chronological record Of wire
less:
lS27-It was found that the mag
netic discharge from leyden jar
would magnetic a steel needle.
1881 Electromagnetic induction
was discovered between two entirely
separate circuits by Michael Faraday.
lS37-Cooke and Wheatstone OF
London. England, and Morse Of the
United States take out first patent for
electric telegraph.
ls3s-K. A. steinhell OF Munich
suggested that a system OF wireless
telegraphy could be established after
his discovery OF the use OF the earth
return.
ls40-Joseph Henry (U. S. A. pro-
duced the first high-frequency cleo
THE oscillations. and stated that the
condenser discharge is oscillatory.
1912 - Wireless experiments were
made by s. +. b. Morse by electric
conduction through water across
Washington canal and across wide
rivere
ls43-A wireless system for traps-
atlantic communication was suggested.
ls45-Water was used as conduct
ing medium In wireless experiments
across a wide river.
ls4e-Intelligible signals were act
ually sent across a river 1890 feet
wide in India, but the cost was found
prohibitive for commercial use.
ls67AThe electric waves that are
now utilized in wireless telegraphy
and telephony were predicted in an
address before the Royal Society In
London. England.
IssO-The sending Of an electric cur
rent through earth was systematicai-
~ studied by Ichn Trowbrldge of
Harvard. Ii was found that signal
ing might be carried on over large
distances between places not connected
by wires.
lss5-rt was found that telephone
speech could be conveyed by Induction
over a space Of quarter mile. This
experiment took place in England.
1sse-Electric waves we're sug-
sssted as being particularly suitable
for the sending of signals through
fogs.
1se2-An instrument for the detec-
ton ~ electro una gnetic waves was
s,.covered which was given the name
Of "coherer."
1saA--A scientist Of Berlin sisnsled
through three miles Of water.
lse5-High frequency waves excite
.,,r,ositx Of Senatore Msrconi.
isee-Flrst patent for practical
wireless transmitting system i taken
ONT in London BY Msrconi Afier~ard'
,uccessful signaling was carried out
over distances as great as one ana
,ns-ausrter miles. Sir William Preece
a, the British pOstoffice system IN
rere<tsU his tobtftr A..
less experiments.
1sa7-Msrconi establishes eommunl-
cstiou between points four miles dis
tsut Balloons were used to suspend
sntennse.
NsrconI demonstrates bis ~ireiess
xxss.m before the king " Italy. com
munlcsting with two Italian ~Arshii's
nine miles distant
The nrst Msrconi station - erected
an IN. Isle Of wight and experiments
conducted over q distance q - miles
Near the end Of the year The hrs'
e.ariux wireless station was success
fully operated
lses-The nrst paid msrconixrAm
VS. sent from the Isle Of wight
station
1sa-Reporrs made on lighthouse
accident by radio. FIRST Freneh gan
host IS fitted with rsdlo apparatus In
vi-uus communication between two
halloous Is established View fork
Herald receives radio report Of inter
nstiousi Yacht races The British war
&C. introduces Nsrc0ni apparatus
info the south African battleneids-
-, f-.-r,.o- ~exx<l cyIunuul<ates