,,wireless ,,possibilities              
,,to-,,day ,,& ,,to-,,morr[ ,,s]ies     
,,da$alus1 or ,sci5ce & ! ,future       
,by ,j4 ,b4 ,s4 ,haldane    ,,ic>us1 or 
,! ,future ( ,sci5ce         ,by ,b]tr& 
,russell1 ,f4,r4,s4    ,,! ,,mongol ,,9 
,,our ,,mid/1 or ,man & ,8 ,?ree ,faces 
,by ,f4 ,g4 ,crook%ank1                 
,m4,c4,f4,r4,c4,p4    ,,wireless        
,,possibilities         ,by ,pr(4 ,a4   
,m4 ,l[      ,9 ,prep>ation             
,,tantalus1 or ,! ,future ( ,man        
,by ,f4 ,c4 ,s4 ,s*ill]      ,e4 ,p4    
,,dutton  ,,company          ,,wireless 
,,possibilities    ,,by    ,a4 ,m4 ,,l[ 
,late ,hon4 ,as/4 ,pr(essor ( ,physics  
at ! ,royal ,artill]y ,college  ,au?or (
 8,! ,two-,/roke ,eng9e10 etc4          
,illu/ration3 ,logo    ,) f\r diagrams  
,,new ,,york  ,e4 ,p4 ,,dutton          
,,company  #fha ,fif? ,av5ue            
,copyright #aibd  ,by  ,e4 ,p4 ,,dutton 
,,company    ,all ,rights ,res]v$       
,pr9t$ 9 ! ,unit$ ,/ates ( ,am]ica      
,,to  ,,john ,,l[          ,,preface    

,! effects ( hi/ory ^u ! advance (      
sci5ce are (t5 not$1 b  ! result ( ! m>*
 ( progress is m (t5 entirely neglect$4 
,x w\ld seem desirable t ! future %\ld  
be /udi$ )  reasonable accuracy if we   
are to protect ourselves f ! ill-effects
  & obta9 ! b5efit f ! good =tunes (    
inv5tion4    ,a4,m4,l4                  
,,wireless ,,possibilities              
,,inv5tion      ,consid]+ ! v evid5t    
fact t we owe e detail ( our  lives1 e  
little com=t :i* sep>ates u f !         
cave-man1 to  ! sci5ce ( inv5tion1 x    
seems /range t s long %\ld h  elaps$    
be=e ?is rem>kable faculty receiv$ prop]
 recognition4    ,inv5tion1 9 _m ways1  
is ! sci5ce & art ( cont9uity (  ?\ght4 
,! inv5tor is (t5 ref]r$ to z a /range  
p]son2 v  true1 v necess>ily true :5 we 
realise t 8 do+s mu/ be  /range or new1 
to be ( value4 ,to tra9 oneself to =get 
! smell  ( ! beef/eak :5 hungry & to    
cont9ue ! natural sequ5ce (  ideas :i*  
may be pass+ ?r\gh ! m9d1 is to tra9 !  
bra9 to  improve4 ,if we c b sweep a    

cross+ a v little clean] ?an  t next to 
our own1 p]haps we h surely accompli%$  
"o ( !  greate/ duties ( all4    ,if n  
"o day is sp5t )\t some?+ le>nt1 surely 
we h  a*iev$ ! greate/ object ( "w &    
enabl$ ourselves to realise  t !re are  
no su* ?+s z basic facts4    ,inv5tion  
is n lab\r1 = ! latt] is do+ some?+ we d
 n  wi% to d 9 "s "o else's "t1 &       
inv5tion l all good ?+s  is a "w ( love4
 ,possibly t is :y x is nev] paid6      
,we are too apt1 ,i ?9k1 all ( u1 to    
rejoice 9 our greatness z  h] devotees  
rejoic$ 9 ! greatness ( ,diana ( !      
,ephesians3 we  %\ld realise e "t we    
undress t we are little remov$ f  !     
animal1 & t be=e _m c5turies h pass$ we 
%all be held  9 almo/ univ]sal contempt4
    ,if t does n /ir u to d our be/1 we 
are inde$ a nation (  %opkeep]s4 ,b ev5 
! proprietor ( ! meane/ /ore relies on 8
  p[]s ( prophecy = 8 pr(its4    ,!     
sci5ce ( wireless is b a few ye>s old4  
,we "k ab\t x little  m ?an our s*oolboy
 sons1 & 9 _m cases n s mu*2 let u      

!re=e be op5-m9d$ if we are /ill        
ignorant4    ,comm]cial inv5tion tru/s  
too f> to mass ?9k+3 an orig9al  mi/ake 
is v closely relat$ to an accompli%m5t4 
,,! ,,importance ,,( ,,s\nd ,,9         
,,wireless      ,a few l9es ( hi/ory are
 desirable "h4 ,i d n mean ! hi/ory     
controll$ by ! fact t ,william !        
,conqu]or made _m important  appo9tm5ts 
9 ,a4,d4 #ajff or t ,/eph5 0 p>ticul>ly 
busy 9  ,a4,d4 #aajj4 ,i mean ! hi/ory (
 wireless1 =1 al?\gh ,radio ,sci5ce  is 
new1 x has a hi/ory2 all "t is relative1
 & we ourselves are  functions ( t      
ph5om5on4    ,only a few ye>s ago !     
ef=ts ( wireless exp]im5t]s 7  entirely 
direct$ to ! conv]t+ ( ! extremely      
delicate wireless  oscillation1 /ill b  
little und]/ood1 into a me*anical       
movem5t1  9 ord] t ! motion ( electrons 
9 a problematical ae!r 7:i*  may be no?+
 b a ?\ght projection & :i* may exi/ 9  
_m  diff]5t =ms7 might be alt]$ into    
some?+ readable by a man )  a *eck      
wai/coat & a /ock & %>e li/ 9 8 h&4     

,t p>ticul> use1 & ! in=mation t "o army
 is ab\t to kill  ano!r c\ld be         
transmitt$ to headqu>t]s1 naturally     
occurr$ to  ev]yone z ! fir/ valuable   
applications ( ,radio4    ,! _m devices1
 ! electro-magnetic receiv]s1 tape      
ma*9es1  coh]]s1 syphon record]s & !    
?\s& & "o electrical ma*9es  produc$ at 
! "t = ^! purposes1 h practically all   
gone4    ,ev5 :5 to-day we want to s5d  
messages quickly1 we record !m ^u  a    
,dictaphone & rely almo/ entirely ^u !  
s5se ( he>+4    ,s\nd1 ! regul>         
oscillation1 & noise1 ! irregul>        
oscillation1  ( ! air1 are really !     
beg9n+ & end ( wireless z x is kn[n  to 
! public to-day4    ,i w\ld g fur!r :5  
?9k+ ( ! public4 ,!y d n want to sit  ) 
a telephone ^u _! heads1 ev5 if _! e>s  
may be improv$  !reby4 ,!y require to   
walk into a draw+-room1 & hav+ /ood  = a
 mom5t ^u ! mat1 !y mu/ be able to cross
 ! room1 t\*  a button 9 a fretwork     
cab9et1 & by ! movem5t ( a lev] be  able
 to place !mselves 9 t\* ) any "p ( !   

_w4 ,p>is1  ,hong-,kong1 ,london1 all   
mu/ be "o to !m if we are to get _!     
money  = our art4    ,9 o!r words1 we   
are compell$ to use :at we n[ designate 
! 8l\d  speak]40 ,we h got to project a 
s\nd into ! room be=e we c  sell our    
in/rum5ts1 & !re9 lies "o great         
difficulty4    ,9 ! fir/ place we d>e n 
exagg]ate ! movem5ts ( a delicate       
telephone v mu* or we %all spoil        
x--!re=e we con/ruct  some?+ :i* looks v
 mu* l a magnifi$ telephone ) a  trumpet
 ^u x4 ,! me*anism is naturally r heavy 
z reg>ds !  mov+ p>ts4 ,9 ord] to       
vibrate ^! heavy p>ts ) ! aid (  our    
ae!rial oscillations we h to amplify !  
available curr5t1  & dur+ ?is process we
 naturally spoil ! detail1 or1 9 o!r    
words1 we magnify x s mu* t electrical  
di/ortions occur ?r\gh  ! :ole range (  
v>i\s trans=m]s & o!r items sold by e   
%op 9 ! _w--at d\ble _! value4    ,mo/ p
 are n cont5t ) a g5tle s\nd3 !y f9d x  
necess>y  to express _! joy at hav+     
rea*$ _! home by danc+2  consequ5tly !y 

want pl5ty ( s\nd1 & !y d n m9d if x    
turns into noise4    ,!y w tell y boldly
 t _! wireless set ) a c\ple (  doz5    
=eign-made valves c be he>d "r across a 
l>ge /reet1  a /reet by ! way 9 :i* we  
/ill p]mit z mu* n]ve-%att]+  noise to  
occur z is ?\ght necess>y4 ,?is means t 
we mu/  h q a big movem5t on a diaphragm
 ( l>ge size1 & a l>ge  diaphragm is    
made to move by ! electrical            
oscillation1 itself n  v accurate2      
naturally1 if x is heavy1 l a pok] or   
any?+  else1 x has a w ( its own1 &     
!re=e x cont9ues to move :5  ! wireless 
oscillation has told x to /op4 ,x does n
 ev5 comm5ce  to move :5 x is told to d 
s1 z x w\ld 7 x a ?9 delicate  telephone
 diaphragm f :i* accurate music c be    
obta9$4    ,?is means fur!r di/ortion1 &
 s bad is x t a great _m  p say pla9ly t
 !y w only li/5 to wireless conc]ts     
?r\gh a telephone & t !y w only use     
cry/als to obta9  rectification because 
( ! inaccuracies o!rwise unavoidable    
to-day4    ,b ?is is n bus9ess1 because 

d n =get we mu/ h our  cab9et ) a f]n ^u
 x & beautiful music1 if we are to be   
successful4 ,bus9ess always leads       
sci5ce1 z we "k4    ,n[ ?9k :y x is t we
 ne$ ?is big diaphragm mov+ s h>d to    
get a big noise2 let u neglect          
electrical details & consid] :at        
produces ! noise2 or s\nd1 if we are    
lucky4    ,s\nd is un=tunately purely a 
me*anical ph5om5on z we *iefly  und]/&  
x1 & is produc$ by oscillations1        
alt]nate compression  & r>efaction ( !  
atmosph]e4 ,unlike ! ae!r1 :i* sometimes
  oscillates only too readily1 air is a 
heavy mat]ial & has great mass4    ,y w 
soon f9d ?is out if y put y\r head out (
 a railway  c>riage w9d[1 because ! air 
is s heavy t we h got to really  kick x 
& hit x h>d be=e we c obta9 a reasonable
 degree (  noise4    ,:5 a speak] is /&+
 at "o end ( a room1 irrespective ( :at 
he says1 ! actual temp]ature-rise ( !   
air c be measur$1 a fact  :i* 0 us$ dur+
 ! w> = ! inspection ( s\nd4    ,s\nd is
 a v complicat$ ?+4 ,x c be reflect$ 9  

mu* ! same  way z light1 & ,i suppose   
mo/ s*ool-boys "k t if a concave  mirror
 is at "o end ( a room & a simil> mirror
 at ! o!r )  a wat* hang+ at its focus1 
! wat* _c be he>d by an obs]v]  walk+   
across ! room1 yet z soon z he places 8 
e> at ! focus  ( ! o!r mirror he w he> !
 tick cle>ly1 %[+ t s\nd  is easily     
reflect$4 ,ev]ybody :o has he>d an e*o  
%\ld "k ?is4    ,s\nd travels also v    
sl[ly1 & !re is pl5ty ( "t = w9d  &     
diff]5t me*anical scrap+ effects to     
spoil ! purity &  p>tially absorb its   
delicacies4    ,illu/ration3 ,fig4 #a4  
,s\nd c be focuss$ by a concave         
reflector &  by ?is means ! tick ( a    
wat* c be he>d at a di/ance4 ,! wat*  & 
! end ( ! wood5 rod are plac$ at ! focus
 ( ! reflector4    ,rememb] t if ,i am  
address+ a man by wireless :o is "o     
hundr$  miles away1 someone :o is li/5+ 
on a telephone w he> my voice  be=e ,i  
am he>d at ! end ( ! big hall :]e ,i am 
speak+1  because ! velocity ( s\nd is   
only #aajj feet p] second1 &  wireless1 

l light1 travels mu* fa/]4 ,s\nd c also 
be actually  refract$4 ,j z !           
old-fa%ion$ jewell] us$ a globe ( wat]  
to  conc5trate ! light ^u 8 "w1 s w a   
collodion balloon fill$  ) c>bon        
dioxide1 ! ord9>y gas product ( av]age  
combu/ion1  act z a l5s = s\nd1 :i* c be
 actually focuss$ by ^! means4    ,?is  
exemplifies ! complication ( our        
subject1 & indicates t  ! heavy         
diaphragm & o!r details ( ! l\d speak]  
mu/ produce  s]i\s di/ortion4    ,let u 
be hone/ at once4 ,we c only he> su*    
di/ant places z  ,am]ica by ! grace (   
heav54 ,ev5 ,sunlight c tune sweet song 
into  vague crackl+s4 ,until true tun+ c
 be obta9$ we are l>gely at  ! m]cy ( ! 
reproduc+ in/rum5t1 :i* too (t5         
exagg]ates  e fault & gives ! impression
 t wireless & music are 9 no  way       
relat$4 ,no l\d speak] ( to-day really  
produces voice & song  :i* s\nd exactly 
l voice & song4 ,x all too mu* resembles
 a  bad gramophone1 b )\t ! advantage ( 
! us] hav+ ! *oice  ( ! music4    ,if   

us] & manufactur] w\ld conc5trate ^u    
obta9+ purity1 if  !y w\ld try ! effects
 ( damp+ ^u l\d speak]s1 :i* are  easily
 obta9$2 if !y w\ld realise t ! horn ( !
 l\d  speak] %\ld be )\t resonance1 t x 
%\ld be also damp$  & pocket$1 t its    
goose-neck$ %ape is n adopt$ )\t an     
object1 & if !y w\ld aim at ! deliv]y ( 
true music in/ead  ( noise--!n1 we %\ld 
make a great advance4 ,! av]age l\d     
speak] c (t5 be greatly improv$ by padd+
 ! horn ) "s  k9d ( tape1 & z an example
 ( ! great difficulties ( prop]         
transmission let x be made q cle> t )   
mo/ cases (  wireless communication !   
s5d+ is ne>ly p]fect4 ,reception is     
greatly at fault3 x is ! reception t    
mangles ! s\nd & makes  x too (t5 almo/ 
unbe>able to anybody ( reasonably       
s5sitive  he>+4    ,at "s l>ge          
transmission /ations x 0 at "o "t q     
common to  use ?ree sep>ate microphones 
= ! modulation4 ,"o receiv$ notes  (    
high pit*1 "o ( l[1 & a ?ird attempt$ to
 obta9 ! 8,s0  s\nd ) ! result t1 :5 ?is

 8,s0 microphone 0 adju/$ = a  man :o   
did n say 8 8,s0 v l\dly & someone      
appe>$ :o did1  x s\nd$ exactly z if !  
speak] _h dropp$ 8 false tee?4    ,all  
?is is n[ avoid$4 ,! ord9>y diaphragm is
 no long] 9 use1  b a v small coil (    
alum9ium wire is susp5d$ betwe5 ! poles 
( an electro magnet1 all[$ to re/ aga9/ 
an ord9>y pad (  cotton wool1 & t is    
all6    ,! inf9itesimal movem5ts ( ?is  
alum9ium coil w reproduce  spee* up to  
ab\t #dj1jjj p]iods p] second 9         
oscillatory spe$1 yet  spee* is well    
recognisable if all frequ5cies ov]      
#d1jjj p] second  are gridd$ out4    ,h[
 difficult x is go+ to be to make a     
l>ge1 heavy1 & rapidly  mov+ diaphragm  
reproduce accurately :5 we h _h to take 
all  ^! precautions to obta9 accuracy ( 
transmission6 ,x is n  impossible2 x w  
come "o day4    ,n[ let u see :at is !  
result ( our s\nd tr\bles4    ,we are   
told t be=e long x w be q easy to he>   
birds  s++ 9 trees & ! waves beat+ aga9/
 ! sea%ore4 ,q  "r1 q easy to d x n[1 b 

if a bird s++ 9 a tree s\nds  l a man   
mov+ 8 cond5s] or walk+ ab\t ) a pair ( 
squeaky  boots1 is x progress8          
,illu/ration3 ,fig4 #b4 ,if light falls 
on a v ?9 diaphragm c>ry+  a mirror1 !  
s\nd waves be+ direct$ into x by a      
trumpet c be  photograph$ ^u a revolv+  
s5sitis$ film4    ,p]haps x is4 ,! :ole 
po9t ( wireless is t x br+s a man into  
y\r room1 b x mu/ s\nd l ! man himself  
if x is to be really  effective2 x is   
?is pitiful quality ( reproduc$ s\nd t  
has  wreck$ ! talk+ c9ema4    ,x is v   
easy to photograph s\nds & to reproduce 
!m  simultane\sly ) ! projection ( a    
picture1 b to reproduce  all ! s\nds ( a
 c[boy sc5e accurately is1 at pres5t1   
almo/  impossible4 ,if a h]o says       
8,good-bye0 to a h]o9e ) a kiss l  a    
creak+ bo>d1 9 ! middle ( a tw5ty-reel  
drama1 in/ead (  improv+ ^u ! effect (  
y\r imag9ation1 :i* tells y t x  is     
real1 & :i* acts ! sc5e = y bett] ?an x 
c be %[n  9 life or s\nd1 x w\ld be l   
putt+ up a blackbo>d across !  scre5 ) !

 words writt5 ^u x1 8?is is n real--x is
 only  a fake40 ,t is :at is wreck+ !   
talk+ c9ema4 ,z a sci5tific  proposition
 x is easy1 b ! results are n good en\gh
 at pres5t1  &1 if we c improve1 let u  
fir/ consid] ! l\d speak]4    ,! talk+  
c9ema w come z a matt] ( c\rse4 ,x is s 
easy to  record s\nds ^u ! film by      
photography ) reproduction by !  sel5ium
 cell or ! neon tube2 x is easy to      
photograph ! wave2  x is easy actually  
to impress ! s\nd wave ^u ! film ) !    
picture1 or to use a gramophone2 b      
reproduction is n l a human  voice4     
,nei!r z yet is any reproduction ev] l !
 voice itself4  ,let t pa9ful fact be   
rememb]$4    ,un=tunately1 f ! bus9ess  
po9t ( view1 ! long di/ance             
reproduction effect is usually          
satisfactory ev5 :5 re-broadca/$  ^u    
telephones1 & = bus9ess purposes x is   
immat]ial :e!r !  voice t records !     
pr(it or loss is h>% or pleasant4    ,s 
! greate/ effects we %all soon see f    
wireless & s\nd  are ^!3 we %all be able

 to speak to p all ov] ! _w by  relay+ &
 a comb9ation ( l&-l9e & radio2 we %all 
easily be  able to connect our (fice ) a
 wireless /ation on ! coa/1 radio       
across ! ,cont95t1 & !n connect by      
l&-l9e to ano!r (fice  on ! o!r side ( !
 ,atlantic4    ,all ?is is s easy t no  
"o c d\bt t we %all soon li/5 9  to     
native jamborees2 no "o c d\bt t we %all
 he> ! /range  cries ( p>tisans at a    
baseball mat* tak+ place a few miles f  
,new ,york2 no "o c "q ^! ?+s1 & :5     
reproduction  becomes s accurate t ! v  
nature ( ! p is reveal$ to  u ?r\gh _!  
spee*1 surely we might be a little m    
neighb\rly  ev5 ) ^? :om we n[ pret5d to
 love8 ,relations are notori\sly        
qu>relsome4    ,if y are 9 a conc]t hall
 & ! numb] ( p is v>i$1  x w alt] !     
effect ( ! s\nd4 ,y h only to look at a 
s\nd-wave photograph produc$ f a viol9  
to realise f its da9ty  intricacies t ! 
lea/ v>iation ( any ( its h>monics or ! 
v exact %ape ( its wave beats w reveal  
all ! diff]5ce  betwe5 a beg9n] & ! f9e/

 musician 9 ! _w4 ,b ^!  ?+s are seldom 
notic$ 9 wireless4    ,x is q easy to   
photograph a s\nd1 by means ( a         
diaphragm beside  :i* a soap bubble is  
?ick1 & to comp>e wireless s\nd ) !     
orig9al2 ev5 !n we h ! great            
difficulties ( resonance1 & a  diaphragm
 _c reproduce prop]ly4 ,h[1 !re=e1 d>e  
we neglect  ! dreadful s\nds we he> 9 ! 
"n ( radio music8    ,if a piece (      
silv]+1 "o ?irty-second? ( an in*1 be   
scrap$  f ! back ( a mirror & fa/5$ to !
 out] "p ( a celluloid  diaphragm 7made 
by wat]-float+ a drop ( amyl acetate 9  
:i*  celluloid has be5 dissolv$71 x only
 requires a horn & a beam (  light to   
r5d] visible ! waves ( s\nd4 ,a         
diaphragm movem5t ( a  million? ( a     
million? ( an in* is sometimes audible4 
,x is ! sci5ce ( wireless t is          
beautiful2 x is !  possibilities t are  
wond]ful2 b to talk ( pure s\nd & to    
judge ( x by ! human e> :i* v>ies aft] e
 meal1 is l  measur+ ! am\nt ( curr5t   
pass+ ?r\gh an electric-light bulb  by  

feel+ its heat ) ! h&4    ,x is n       
g5]ally kn[n t1 dur+ ! ,w>1 exp]im5ts 7 
made  ) a s\nd-reflector = li/5+ to     
diff]5t types ( a]oplane  & subm>9e1 by 
means ( a microphone plac$ at ! c5tre ( 
a  concave mirror4 ,! difficulty 0 t (  
di/ortion1 :i* is !  :ole s\rce ( tr\ble
 ) s\nd produc]s to-day4 ,di/ance is  no
 difficulty & :5 we c obta9 purity &    
realism z well z  di/ance1 ! latt] is no
 difficulty at all2 !n only w be !  "t  
:5 we %all h t spontane\s m5tal realism 
( vision t  w help radio to alt] ! _w4  
,9 a few ye>s "t we %all be able to *at 
to our fri5ds 9 an  a]oplane & 9 !      
/reets ) ! help ( a pocket wireless set1
  & be able to d practically ev]y?+ by !
 aid ( radio t we  n[ d ) our voice4    
,! only ?+ t w seem int5sely /range w be
 t ^!  com=ts nev] exi/$ be=e6          
,,wireless ,,inaccuracies      ,i h (t5 
wond]$ :e!r p realise t broadca/+1 at   
pres5t1 is only possible or1 %all ,i say
 is only popul>1 because (  its extreme 
impracticability = mo/ =ms ( secret     

communication4    ,suppos+ two p _h be5 
able to conv]se privately & )  absolute 
secrecy f o!r 8li/5]s 910 !n we %\ld n  
m9d  tru/+ all our messages to ,radio4  
,at pres5t1 :at c be cod$ c  be decod$1 
& we are n entranc$ by ! idea ( entru/+ 
our  p5nies to ! w9ds ( ,heav5 & !      
vag>ies ( a ?und]/orm4    ,if wireless  
_h really be5 selective 9 ! fir/        
in/ance1  broadca/+ w\ld n h be5 its    
initial phase4    ,wireless at pres5t is
 excessively ineffici5t2 a few y>ds f a 
l>ge broadca/+ /ation ! p[] is measur$ 9
 million?s ( a  horse-p[]1 is dissem9at$
 9 all directions1 & is almo/ )\t       
def9ite selectivity4    ,:5 ! day comes 
:5 we c tune ) absolute accuracy2 :5 we 
c comb9e waves ) accuracy & obta9 a     
directional beam ) !  %orte/ waves =    
re-broadca/+ purposes1 !n we %all obta9 
real  happ9ess f ! results4    ,p>liam5t
 mu/ h its special wave l5g?1 ! divorce 
c\rts (  ! future w be broadca/$ to     
prev5t p f cat*+ cold by  wait+ outside4
 ,x w be q easy = ! ,judge1 at a d\btful

  passage1 to press a swit* & to say1   
8,i ?9k we w cut t out40    ,"o c imag9e
 broadca/+ ( ! future l9k+ up e city f  
,*9a to ,london2 "o c see special wave  
l5g?s = m51 & equally  special wave     
l5g?s = wom54 ,& we %all =get ! "t :5   
%ips  at sea ) anci5t sets int]f]e ) !  
murd]+ ( music by !  local amateur4     
,x has be5 said t1 at pres5t1 ^? 9      
au?ority f9d x necess>y  to *oose       
special voices = ! wireless             
broadca/-deliv]+4 ,:at  an idea6 ,!     
public want to he> ev]ybody4 ,!y want to
 h local  ev5ts broadca/1 irrespective (
 ! op]ator4 ,!y d n want a  p]fect      
voice1 !y want a p]fect p]sonality1 & x 
is r !  wireless t mu/ be alt]$ to take 
any reception ?an ! human  voice ^: v   
*>act]i/ics delight u4    ,we are too   
accu/om$ to rely+ ^u our s5ses4 ,we are 
apt to ?9k  t ! e> is mo/ delicate4 ,x  
is no?+ ( ! k9d2 x _c  ev5 he> notes t  
delight ! he>t ( a dog1 & if "o pictures
  life ) ! bra9 ( a man1 ! e> ( an      
antelope1 & microscopic  eyes1 toge!r ) 

! nose ( a dog1 "s little idea ( !      
ineffici5cy ( ^? few s5ses :i* we       
slightly und]/& c be  obta9$4    ,to    
live 9 any t[n w\ld be impossible3 !    
smells ( ,bond ,/reet  in/ead ( pleas+ !
 dog w\ld tell u ( rott+ animal matt] & 
al>m u to di/raction4 ,we c\ld nev] sit 
d[n ^u a beautiful piece  ( grass )\t   
li/5+ to ! worms & imag9+ ourselves )   
!m4 ,we c\ld n be> to dr9k wat] = !     
peculi> bodies we w\ld  see 9 x4 ,! w9d 
9 ! trees1 ! p walk+ d[n our /reet or   
into our rabbit-w>r5s ( flats1 w\ld s\nd
 l a battle f af>4    ,x is only a "q ( 
relative s5ses1 easily te/$ by anyone   
:o has ! pati5ce to fit an effective    
microphone to ! amplifi]  pur*as$ 9     
mahogany case at ! local 8/ore40        
,wireless inaccuracies ab\nd2 anyone :o 
he>s its music w agree1  b :at ( _!     
effect ^u our bodies6    ,! air1        
popul>ly speak+1 mu/ n[ be full ( radio 
oscillations1  & if y tell me t !y are  
negligible 9 effect ,i may believe  y1 b
 if ,i he> !re is no effect at all1 ,i  

"k t x _c be  true4    ,x is m ?an      
likely t1 9 ! f> future1 ! prop] /udy  (
 oscillatory !ories1 ! prop]            
inve/igation ( ! spectrum  only v       
p>tially explor$ by a few1 w lead u to a
 bett]  und]/&+ ( ! nature ( life1 & w  
help u to appreciate  ! !ories (        
electrical sonics4 ,!ories ( prev5t+    
local  ?und]/orms1 ( gr[+ babies & :eat 
effectively1 by electrical  or o!r      
simil> oscillatory means1 ( help+       
ourselves to see by  wireless & (       
affect+ our heal? at ! end ( _m         
g5]ations =  ! bett]1 may all be        
develop$ 9 ! "t to come4    ,if "s heal?
 effect is produc$1 :y %\ld we n try to 
r5d] x  b5eficial8 ,a small effect c be 
v cumulative 9 nature4 ,"o has  only to 
inspect a human nail to agree ) t       
/atem5t4          ,,radio ,,television  
,x has be5 said ( s\nd t a bell nev]    
ceases to e*o & t !  human voice nev]   
ceases :5 once words are spok52 truly1 x
 is an  al>m+ ?\ght :5 ! nature ( mo/ ( 
our say+s is realis$4    ,n long ago x 0

 claim$ t by means ( a delicate         
microphone  ! say+s ( ,h5ry ,,viii _h   
be5 inve/igat$--?\gh nature ( !  subject
 01 ) n less delicacy1 omitt$4    ,mu* !
 same basic ideas apply to light except 
t we are deal+  ) a v mu* m int]e/+     
ph5om5on1 "o inde$ :i* is  n app>5tly   
too mat]ial & a s5se :i* gives u ne>ly  
all our  nonphysical s5sations4    ,we  
actually transmit v few s5ses3 we m]ely 
conv]t _! nature  by utilis+ diff]5t    
portions ( ! spectrum4 ,light has       
und\bt$ly  its tone values1 z 9 ! case (
 s\nd1 & x has n yet be5  def9itely     
e/abli%$ ) :at portion ( ! body vision  
is actually  obta9$4 ,x is likely t     
light is project$ along ! electro l9es  
( =ce by ! movem5t ( electrons b :e!r ! 
e!r consi/s  ( electrons !mselves1 :e!r 
x exi/s 9 _m =ms1 or is m]ely  a result 
( ! mass effect ( ?\ght1 we d n yet "k4 
,light  v possibly proce$s f ! eye z    
well z f ! lum9\s body  conc]n$4    ,!  
sci5ce ( ,radio has taught u some?+ (   
light1 b only to  a mode/ ext5t1 = light

 yet rema9s "o ( ! mo/ ineffici5t       
factors ( a civilisation :i* almo/      
entirely dep5ds ^u x =  exi/5ce4    ,!re
 is a /range factor :i* we may call !   
8,law ( ,supply &  ,dem&40 ,?is /rongly 
implies ! faculty ( inv5tion1 a facility
 (  8wi%fulness to improve02 some?+ f>  
bett] ?an ! necessity =  inv5tion4 ,let 
u rememb] t our clo!s are n necessities2
 !y  are m]ely com=table1 & x is com=t t
 di/+ui%es u to-day  j z x is conv5i5ce 
t w 9 ! future give u a life :i*  w be  
bett] by f> ?an t exp]i5c$ by ! k+s &   
pr9ces (  to-day4    ,civilisation has  
dep5d$ almo/ entirely ^u ! spe$+ up  (  
communication4 ,we c travel fa/2 we c   
convey our ?\ghts  at great spe$1 b1    
un=tunately1 al?\gh all ^! means (      
int]communication are devis$ ) ! "o idea
 ( prev5t+  physical "w & ( obviat+ !   
movem5ts ( our gross bodies1 our  s5ses 
are v closely comb9$4 ,x is consequ5tly 
n possible to  r+ up somebody on !      
wireless telephone1 a fact itself easy (
  accompli%m5t1 & to impress our        

p]sonality ^u ! li/5]4 ,?is  is simply  
because we require a comb9ation ( s5ses 
= he>+1  see+1 smell+1 & o!r reactions1 
9 ord] to convey our :ole  p]sonality4  
,vision at a di/ance is1 !re=e1 v       
necess>y z our incl9ation  = travel     
decreases & its com=t increases4    ,x  
is also important f ! po9t ( view (     
8spe$+ up10 :i*  we h no reason to      
suppose w cease4 ,all op]ations h       
/eadily  increas$ 9 spe$ = _m g5]ations4
    ,!re 0 a "t :5 we made appo9tm5ts to
 meet our fri5ds at !  full ( ! moon1 b 
n[ we say at 8#aj o'clock1 & ,i c only  
give  y two m9utes40 ,9 ! future we %all
 probably say1 8,meet me at  #aj4b4a-e  
secs41 & d n keep me wait+40 ,to d ?is  
we mu/ h  radio sight4    ,_m ye>s ago1 
:5 exp]im5ts 7 made on ! subject1 !     
usual  cry appe>$ f :at ,i always       
m5tally typify z ! 8,flat ,e>?          
,brigade02 !y said1 8,impossible40 ,:at 
w\ld our =ebe>s h said  ( talk+ to a man
 9 an a]oplane8 8,impossible60 ,x is a  
fooli%  ^w4 ,n[ all ov] ! _w exp]im5ts  

are be+ conduct$1 _m (  !m ) success &  
"s ) ! gu>antee ( reasonable success 9  
tw5ty ye>s or less4    ,n[ wireless1 if 
,i may apply ! ^w "h1 is v l light 9 _m 
ways2 x is capable ( refraction & %ad[  
effects2 x travels at !  same spe$1 & if
 ! wave-l5g?s ( wireless c\ld be        
suffici5tly  %ort5$ to become visible we
 %\ld probably f9d ourselves ) a  new1 &
 possibly effective1 me?od ( transmitt+ 
wireless light &  ev5 p[]4    ,radio is 
a ph5om5on ( ! spectrum l ord9>y        
photographic light1  ,x-rays1 & s on4 ,x
 is effects :i* det]m9e ! diff]5ce to   
our  eyes ( ?+s invisible1 solid1 &     
transp>5t4    ,x may well be t1 :5 we   
succe$ 9 int]-planet>y communication1   
we %all discov] t ! inhabitants see by !
 ,x-ray1 by wireless1  or by heat4    ,x
 is n difficult to obta9 a proportionate
 int]*ange ( radio  & light             
oscillations4 ,ev5 sunlight affects     
wireless telegraphy1  & exp]im5ts :i* h 
be5 conduct$ ^u ! c>ry+ &  directional  
p[] ( c]ta9 o!r rays & oscillations h n 

be5 entirely )\t results4 ,we may1 "o   
day1 obta9 f> great]  s5sitivity (      
direction1 great] c>ry+ p[]1 f small    
initial  output ) a degree ( selectivity
 almo/ inf9ite1 9 comp>ison )  mod]n    
work+4    ,to use a light beam along :i*
 we c talk1 to use a light beam         
initially & to turn x into light :5     
requir$1 is by no means  difficult2 x   
sugge/s ! direct me?od ( wireless       
vision1 b f  ! me*anical aspect !       
problem is /ill less complicat$4 ,!     
difficulties ( ,radio ,television to-day
 are con/ructional2 9 ! f>  future x may
 be a "q ( pure physics4    ,!re is1 at 
lea/1 "o simple me?od ( s5d+ photographs
  by wireless ) a reasonable degree (   
accuracy4 ,di/ance1  re-broadca/+1      
relay+ are1 none ( !m1 ( any great      
te*nical  importance4 ,int]f]5ce is     
c]ta9ly a difficulty1 = 9 ! case (  a   
picture ! eye _c di/+ui% betwe5 faults s
 easily z !  e> c automatically sep>ate 
unpleasant noises f music4    ,if an    
ord9>y photograph is transf]r$ to a     

copp] plate1 ei!r  flat or r\nd1 & a    
contact f+] is all[$ to pass ov] x1     
cle>ly ! resi/ance betwe5 ! plate & !   
f+] w v>y )  ! ?ickness ( ! photographic
 film4 ,if ?is resi/ance is us$  to     
modulate ! transmission 9 place ( an    
ord9>y microphone =  spee*1 ! curr5t at 
! receiv+ end c be pick$ up1 amplifi$1  
& us$ to m>k d>kly1 lightly1 or n at    
all1 ^u a prep>$ piece  ( pap] :i* is   
affect$ by ! passage ( an electric      
curr5t4    ,by ^! means good photographs
 c be reproduc$1 & d\btless 9 !  future 
we %all be able to sign our *eques by ! 
rapid transmission  ( motion2 we %all be
 able to trace crim9als1 s5d out _!     
f+]-pr9ts1 & c>ry on v _m classes (     
bus9ess :i*1 at  pres5t1 require our    
bodily att5tion4    ,illu/ration3 ,fig4 
#c4 ,if light passes ?r\gh ! negative to
 be  transmitt$ on to a sel5ium cell :i*
 modulates 9 place ( a  microphone1 !   
wave c be pick$ up1 amplifi$1 & made to 
op5 or  close a %utt]4 ,?is p]mits ano!r
 light to record1 spot by spot1  !      

reproduction ( ! orig9al photograph4    
,:at a help to ! man :o objects to a    
l>ge city4 ,:y c\ld he n  conduct 8     
bus9ess f 8 h\se 9 com=t in/ead ( hav+ 8
  spats wa%$ e week 9 ord] to ma9ta9 8  
f9ancial reputation8    ,!re is a /ill m
 rapid me?od ( transmitt+ a photograph3 
x is  to all[ ! light f an ord9>y lamp  
to pass ?r\gh a spot ^u  ! negative & !n
 to a sel5ium cell4 ,sel5ium is s       
con/itut$  t its resi/ance to ! passage 
( electricity v>ies ) !  am\nt ( light  
to :i* x is expos$4 ,?is prop]ty has be5
 us$ to  light up & to ext+ui% ord9>y   
/reet lamps1 = demon/ration  purposes4  
,if a sel5ium cell is us$ 9 place ( !   
ord9>y broadca/+  microphone1 !         
transmission c be modulat$ 9 accordance 
) !  passage ( ! light ?r\gh a black    
spot on ! negative1 su* z "p  ( a top   
hat1 or a :ite spot1 su* z a :ite face  
or "p ( x4    ,! receiv$ curr5t is pick$
 up & amplifi$ 9 ! ord9>y mann]1  b     
in/ead ( op]at+ a diaphragm to produce  
spee*1 x is tak5  to a k9d (            

electrically op]at$ v5etian bl9d1 :i*   
all[s light  to pass ?r\gh x or n to    
pass ?r\gh x1 9 accordance ) !          
transmitt+ curr5t4    ,x requires little
 imag9ation to see t1 if a beam ( light 
is  all[$ to pass ?r\gh ea* po9t ( !    
orig9al negative 9 turn1  ! f9al picture
 c be built up f 8spots0 some:at 9 !    
mann]  ( a half-tone block4    ,x takes 
a long "t1 is r pat*$1 & is liable to   
int]f]5ce2  b ! :ole process is p]fectly
 simple4 ,consid] ! great  importance ( 
?is exp]im5t to ,radio ,television4     
,! human eye sees only "o po9t at a "t b
 9 ! fact t  in/antane\s vision ( a     
complete picture is n necess>y lie our  
hopes ( television to-day4    ,! eye is 
a v defective piece ( me*anism consid]$ 
f an  optical /&po9t4 ,! po9t$ rays :i* 
appe> to come f />s  %[ "o example (    
faulty optical con/ruction1 h[ev]       
wond]ful  may be ! :ole /ructure4 ,ano!r
 prop]ty1 & a feature ( great           
importance f ! aspect ( television1 is t
 ( ret5tivity4    ,we all "k t :5 a     

light$ cig>ette is :irl$ r\nd 9 ! h&  ! 
result appe>s to be a r+ ( fire4 ,our   
bra9 assures u t  ! eye is tell+ lies & 
t x is really a mov+ po9t4 ,?is is      
because ! image is impress$ & actually  
la/s ^u ! eye or its  ret9a4    ,?is    
ph5om5on is us$ 9 e c9ematograph2 )\t x 
! ord9>y  film w\ld n be practicable4   
,ea* picture ( an arm ab\t to light a   
cig>ette %[s ! arm con/antly clos] &    
clos]1 & be=e "o  picture has _h "t to  
die out ! o!r is ?r[n ^u ! scre54  ,!   
result is an illusion ( motion4    ,to  
return to ! transmission ( a photograph1
 let u imag9e t x  is s5t 9 a s]ies (   
spots beg9n+ 9 ! top left-h& corn] at   
#ab o'clock3 ! bottom spot w probably be
 complet$1 at mod]n  s5d+ spe$s1 by ab\t
 #ab4ae1 9 ! case ( a picture two in*es 
squ>e4    ,cle>ly all we h to d is to   
r$uce ?is "t to #d_/e ( a second        
altoge!r1 & we %all be aga9 s5d+ ! fir/ 
spot be=e x has  _h "t to die away f !  
app>5t vision ( ! obs]v]4 ,9 o!r  words1
 we w see by wireless4    ,! obvi\s     

me?od ( assi/+ 9 ?is spe$+ up ( s5d+ !  
?\s&s ( spots1 w\ld be to graduate !m by
 "s means ( rot>y  conv]sion or to      
decrease ! numb] ( spots4 ,! latt] is "o
 me?od  by :i* practical television c be
 accompli%$ to-day4    ,illu/ration3    
,fig4 #d4 ,if a photograph is divid$    
into spots & !  la/ be s5t only #d_/e   
sec4 aft] ! fir/1 television c be       
obta9$2  b if ! spots mu/ be l>ge to d  
?is1 only su* items z !  diff]5ce betwe5
 a cross & a circle c be obs]v$4    ,x  
w\ld be q easy to fix up an app>atus by 
means ( :i*  we c\ld %[ :e!r an (fice 9 
,new ,york 0 lit up or n1  ! obs]v] be+ 
situat$ 9 ,london4 ,?is is a =m ( en]gy 
or  comb9ation ( ph5om5a :i* am\nts to  
wireless sight1 b x does  n help u to   
see %apes or =ms or to say if ! light is
 f a  c&le1 ! sun1 or an arc lamp4      
,by increas+ ! numb] ( cells f "o to1   
let u say1 tw5ty1 we  c\ld possibly     
indicate ! diff]5ce betwe5 ! mov+ %ad[ (
 a  cross or a circle1 b to radiate     
detail is a v difficult problem1  :i*   

d\btless w be p>tially solv$ )9 ! next  
few ye>s4 ,!  electro-magnetic !ory (   
light & ! ph5om5a exhibit$ by !  neon   
tube1 pres5t _m opportunities4    ,:at  
an excell5t inv5tion ?is w be6 ,x means 
t a telescopic  cam]a c\ld be atta*$ to 
an a]oplane & ! views se5 by  ?\s&s 9 a 
c9ematograph !atre :o may h ! pleasure (
  witness+ ! f9i% ( a horse-race & kn[+ 
)\t loss ( "t  h[ mu* money !y h lo/4   
,x w\ld mean t ! crew ( a %ip1 a subm>9e
 9 difficulties1 or  ! pass5g]s 9 an    
a]oplane1 might be visible to p _m miles
  away4 ,x c\ld n yet occur )\t _! wi%1 
= ! transmitt+  app>atus mu/ fir/ be put
 into op]ation4    ,! s5ses ( see+ &    
he>+ are possibly among/ ! mo/          
important ( all1 &1 if we c convey bo? (
 !m to a di/ance1 x  means t we c call  
fri5ds1 nations1 music1 & p]sonalities  
to  our fireside1 by ! t\*+ ( a button4 
,su* possibilities ne$ no enl>gem5t4    
,wireless may prove a f> m  rapid l9k   
?an ! ord9>y increase ( travell+ spe$ & 
may help  nations to int]m+le to !      

common good4    ,! "q ( see+ 9 col\rs   
has h>dly yet be5 consid]$1 b  t also w 
come to u1 h[ev] great ! difficulties   
may appe>  to-day4    ,c]ta9ly ,leagues 
( ,peace w h m argum5ts1 & ,g5]als w  h 
m weapons4    ,! lazie/ millionaire     
to-day1 9 a physical s5se1 w be         
h>d-work$ 9 comp>ison ) ! =tunate       
individual ( !  sci5tific future4 ,we w 
travel 9 ! be/ possible mann] & 9  su*  
com=t t ! m9d w be free to receive      
impressions4 ,our  ma9 objective w be to
 tra9 x = t purpose4    ,aft] all1 :at m
 c we d n[8          ,,wireless ,,& ,,w>
      ,! subjects ( ,w> & ,wireless cov]
 a multitude ( closely alli$  ills4     
,x is only natural t wireless %\ld fir/ 
h be5 appli$ to ,love  & ,w>4 ,i rememb]
 well "o ( ! mo/ rem>kable applications 
(  wireless m5tion$ 9 ! press 9 ! e>ly  
days 0 t ( a cable  s5t to an un=tunate 
man 9 mid-ocean1 in=m+ him t an all too 
successful arrival ( tw9s _h tak5 place4
    ,w> is1 ( c\rse1 a natural process a
 little less educat$1 & m  unk9d1 9     

consequ5ce1 ?an bir? control4    ,mo/   
inv5tions are fir/ appli$ to ! sci5ce & 
art ( w>f>e4  ,p]haps we %\ld n reg>d   
?is z all to ! bad1 = ,w> has a         
rem>kable capacity = accel]ation4       
,developm5t ( ! wireless valve 0 greatly
 assi/$ by ! ,w>3 !  a]oplane1 ! art (  
pla/ic surg]y1 & _m o!r human b5efits  h
 arriv$ m rapidly f ! same cause4       
,let u see1 !re=e1 :at wireless c d n[1 
& :at x may  accompli% = ! future (     
organis$ de/ruction4    ,m5tally1 !     
fitte/ %\ld survive1 9 bo? ! realms (   
inv5tion  & physiology4 ,x is only a few
 ye>s s9ce wireless 0 ( no  intr9sic    
value = ord9>y l& w>f>e1 by virtue ( !  
fact t  int]f]5ce 0 extremely easy1 & t 
any cod$ message c\ld be s  easily      
decod$4    ,at pres5t wireless messages 
are *iefly ( s]vice :]e secrecy is  n ( 
su* importance z spe$2 b an enorm\s     
numb] ( exp]im5ts  are be+ conduct$ ^u  
beam wireless1 directional wireless1 & 9
  ! comb9ation ( ! ,radio oscillation ) 
"s o!r oscillations  su* z ^? ( visible 

or invisible light4 ,by ^! means secrecy
  w be obta9$ :5 we discov] h[ to use   
small p[]s = long  di/ance1 b at pres5t 
,radio is *iefly ( value z a "t-sav]4   
,! pilot 9 an a]oplane c talk to 8 base3
 he w soon be able  to write & transmit 
vision f a plane :i* c\ld be controll$  
by wireless4 ,! "t w come :5 l[-fly+    
wireless planes w  explore1 & r5d]      
visible at _m miles di/ant1 places :]e  
no  human pilot c\ld rema9 = any l5g? ( 
"t 9 safety4    ,x is n long ago t we   
rejoic$ because a damag$ %ip 0 able to  
call = help by wireless1 b we h only to 
look back to a rec5t  w> to rememb] an  
occasion :5 "o %ip 0 totally unable to  
call  assi/ance because its wireless 0  
jamm$4 ,9 o!r words1 enemy  int]f]5ce 0 
possible4    ,?is %\ld %[ u h[ f> we h  
yet to g 9 an utt]ly new &  v little    
und]/ood sci5ce4    ,we began ) sp>ks1  
we progress$ to coh]]s1 & n[ we h       
valves2 b let x n be ?\ght = a mom5t t !
 valve  repres5ts f9ality to any ?9k+   
be+4    ,broadca/+ at pres5t has really 

become s univ]sal only on acc\nt  ( !   
exce$+ly public nature ( wireless1 =1 :5
 we are able  to obta9 accuracy ( tun+ &
 direction1 we %all n only use !  latt] 
to guide %ips at sea1 b we %all h       
correspond5ce :i*  c be conduct$ ) a    
reasonable degree ( secrecy4 ,we %all h 
special wave-l5g?s = ! ,gov]nm5t1       
special wave-l5g?s =  ,p>liam5t>y       
debates1 & ! ,divorce ,c\rts4 ,we %all n
 conduct  our conv]sations 9 su* a mann]
 t any s*oolboy ) a piece (  wire1 a    
ne$le1 & "s sug>1 c promptly li/5 94    
,! v idea sugge/s a new 8,peep+ ,tom40  
,z f> z communication is conc]n$1 we    
%all h :ole armies 9  in/antane\s t\* ) 
ea* o!r3 x may inde$ make real secrecy  
m difficult4 ,x %\ld always be          
recollect$ t :5 we ref]  to wireless    
spee*1 wireless control1 & ,radio       
,vision1 we d n  necess>ily mean ! same 
=m ( electrical wave by :i* we n[       
broadca/ a comic op]a4    ,x is )       
oscillation t we are really conc]n$1 &  
we may  discov] _m =ms ( electronic     

vibration at pres5t occupy+  portions ( 
! s-call$ spectrum :i* are z yet v      
little  und]/ood4    ,x may be          
impossible = ! ,comm&]-9-,*ief ( !      
future to  conceal a docum5t f ! eyes ( 
wireless2 & :o kn[s b t  ! electrical   
op]ation ( ?\ght may be r$uc$ to a      
sci5ce s t  our v ideas are n secret )\t
 protection8    ,h[ _m ( u to-day c\ld  
risk all our ?\ghts be+ kn[n8 ,x w\ld   
probably improve moral /&>ds if !y 7    
publi%$3 sci5ce t5ds  to effect an      
av]age improvem5t4    ,we h nev] yet    
really se5 ! extraord9>y value (        
wireless 9  w>4 ,if we _h solv$ !       
problem ( selection1 ! transf]5ce (     
spee* by phonograph records dropp$ f    
a]oplanes w\ld nev] h  aris54           
,und\bt$ly1 we %all see wireless        
controll$ tanks1 subm>9es1  & torp$oes  
on bo? l&1 air1 & wat]4 ,all w be       
accurately  controll$1 & !y w possibly  
be able to f9d _! way home &  to op]ate 
f a di/ance :ile out ( sight4    ,ev5   
to-day x is possible = an a]oplane to   

op]ate a torp$o1 to  /e] x prop]ly1 to  
sl[ x d[n2 & = a pilot ( an a]oplane  _m
 miles away to "w 8 w ^u x ) a          
reasonable degree (  accuracy & ) ! help
 ( a gyro control4    ,! day w und\bt$ly
 come :5 ! problem ( def5d+ an isl&  is 
n t ( ! ma9l& itself b ( all its        
dep5d5cies4    ,no l>ge t[n c\ld live = 
long if x 7 bomb$ f a di/ance by        
wireless1 if gass$ & poison$ f a        
di/ance1 7 x n = !  balance ( protection
 & def5ce :i* is usually ma9ta9$ by     
nature4    ,we %all 9 ! future1 see =ms 
( electric dea? & heat-rays :i*  may    
mat]ialise n z a direct projection (    
heat b z "s =m (  oscillation :i*       
produces heat only :5 /rik+ a metallic  
object4    ,we h be5 s (t5 told t p[] c 
be transmitt$ by ,radio t  we are apt to
 look ^u ?is /atem5t ) contempt4 ,?is is
 q  wrong3 p[] w "o day be transmitt$ by
 wireless2 p[] c at  pres5t be          
inductively s5t ov] q a l>ge air gap1   
?\gh !  en]gy available q close to any  
wireless /ation is practically          

negligible to-day4    ,:5 motor-c>s &   
%ips are controll$ or /opp$ by wireless1
 x is  n ! wireless :i* does ! "w2 !    
!rial oscillation m]ely  s5ds signals to
 ! ord9>y op]ative me*anism4    ,mu*    
excitem5t has be5 caus$ by ! alleg$     
injury ( a]oplanes &  motor-c>s by      
wireless1 b h[ is x t !y c aft]w>ds     
proce$8  ,d we =get t ! petrol eng9e has
 to be re/>t$1 & t1 if  all[$ to fire :5
 a c> 0 9 ge>1 x might be damag$ & w\ld 
probably n op]ate ! mov+ p>ts8    ,if   
wireless p[] c\ld be direct$ 9 su* a =m 
t x c\ld be  convey$ along a wave (     
8atomic0 oscillation1 _m m valuable ends
  might be s]v$ ?an ! en=c$ l&+ (       
a]oplanes4    ,our clocks c\ld be       
correct$ by wireless1 exp]im5ts c\ld be 
conduct$ ^u ! nature ( light & e!r 9    
v>i\s =ms4 ,we might  decide ! mode (   
propagation ( light & ?\ght1 &          
inve/igate  ! app>5t motion ( ! electron
 along ! electro l9es ( =ce4    ,:at an 
opportunity = /udy to ! man ( m$ic9e6   
,:at a *ance  to f9d out h[ !           

oscillations ( life are connect$ ) ^? we
  p>tially und]/&4    ,:at a *ance = !  
burgl> to discov] ! pres5ce ( hidd5     
spoons z a mass ( metal by means (      
wireless2 :at a *ance = !  surveyor & ! 
seek] aft] oil to use ?is all-prevail+  
s5se (  oscillation & ev5 to discov] !  
mean+ ( radiation4    ,oscillation--t is
 all we mean by ,radio2 & oscillation is
 at !  base ( life itself4 ,x w n be    
long be=e travell]s by air1  l&1 & wat]1
 w be no long] alone4    ,t !y w be able
 to conv]se ) _! homes may seem no      
advantage1 b t !y c rema9 9 t\* ) ! re/ 
( mank9d  is mo/ obvi\sly desirable4    
,if ?is 7 und]/ood to-day1 ,i %\ld n ne$
 to make noises  ) my lips or require ! 
simulacra ( ^! noises to be  produc$ ^u 
pap] to convey my ?\ghts4 ,if ?\ght is a
 process  ( en]gy-conv]sion--& :o w d5y 
x8--:at =m ( scre5+  prev5ts its use1 & 
:y %\ld its reception be conf9$         
ev5tually  to life ^u ?is p>ticul> & v  
tr\blesome planet8    ,x is rem>kable h[
 little is kn[n ( wireless3 ! v         

simplicity  ( its pa9fully /&>dis$      
features is a trap = ! unw>y4 ,x  is a  
univ]sal sci5ce1 b we d n yet "k !      
correct diaphragm  size = a l\d speak]1 
nor h[ damp+ %\ld be employ$4 ,! f9e/   
app>atus is available to all1 & yet we d
 n und]/& ! fulle/  range ( wave-l5g?s4 
,! /udy ( radio-active mat]ials & %ort  
wave radiation may 9 "o day produce !   
cold-emitt] valve1 aboli%  ! outside    
a]ial1 & br+ to our clos] und]/&+ "s ( !
  _m s5ses n[ s atrophi$ 9 mank9d1 t we 
c only speculate z  to _! exi/5ce4 ,i   
d\bt mu* if ! s*oolboy ( ! future w     
greatly e/eem ! radio exp]t ( ?is       
c5tury4