The Sauk Centre herald. (Sauk Centre, Stearns County, Minn.) 1886-current, 1937-05-06
Sank @| IT, dTnTm 1Af : Els us
Centre 1sa y MAlERll9{@ k I a ssR - + |
High
School
No. XXI

doing intensive reading out OF
booklets.
The knitting club, under the dir
ection of Miss Riley has been max
ing sweaters, purses, scarfs, dress
es and other articles throughout
the school year. They are now
planning an exhibition of their
work to be held some time in the
later part OF May.
COMMUNICATION BY
TELEPHONE
On April 18th, Mr.. Forsythe, OF
the Bell Telephone Company gave
q lecture about the telephone to
the ninth grade.
I 1t seems that in 1876 when Bel
invented the telephone, he was not
satisfied with the way 1t worked
SO in 1873 made better one, In
which you both talked and listened
through the receiver. In 1895 the
first desk telephone was patented
Mr.. Forsythe stated that although
some people have the idea that
French type telephone Is clearer
than the plain wall or desk tele
phone, this is entirely untrue. TIT
only Improvement Is that 1t Is NOR
convenient. An interesting fac
about the telephone is that whil'
we are only able to see about tel
or eleven parts there are approx
imately two hundred-one parts Il
the desk telephone.
The points through which actua
contact Is made are gold tippe'
, while the other parts are made Q
iron, tin, steel, mica, lead, rubber
; etc.
In long distance calls the currer
s that starts out from one place
considerably cut down from resis
e ance in the wire. To prevent thi
: at equal distances are loading col
: which step up the current an
make it clear at the receiving en-
: In transcontinenta1 calls about tw
4 hundred vacuum tubes are used
e place of the loading coils, as the
= have more power.
III In trans-oceanic calls the call
not actually sent by cable, but
l broadcast by wireless. To insu
| privacy in these calls they are p
through a machine which inver
the speech, and at the receiviI
end through another machil
which makes it right again.
| AS many wires make city io'
untidy, cables are constructed tn
bind the wire together. In some c
bles one hundred wires are use
but in the large aerial cables SO
wires are used. The cables are &C
| cred with lead and enough OF II
| Is used to fill 20 thousand and
ton freight cars that would street
50 miles in length. OF the total
million miles Of telephone wire
the U. s. about 81 per cent OF t
wires are in cables, and 81 per &C
OF these cables are undergroui
vet we see many, many wires !
in cables.
Instead Of building separ.
wires for each call that goes o,
the wires at the same time, sci'
lists in their research work disct
cred that by using two sets
wires CnlIU pnduUOIu Cddi Couto
put over without wires. This saw
the company great deal Of mon
The first colored glass insulatt
used provided good places for
sects to build nests and destroy
poles, SO white glass ones, throu
which the sun can shine, are n,
used altogether, with cresoted pc
which insects dislike to eat.
Miss Aura ]. Keever, the Stu
Supervisor of Vocational Hol
Economics, was caller in that
partment one day last week.
The eighth and ninth grade 81
are busily engaged in their Clio
ing Construction Unit. They {
working on the construction
dresses. They will display thu
and the children's garments ma
by the ninth grade girls.
The tenth graders are on |
Family Relationship Unit on p
sonalities. They find the Person