Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1907-06-29

rtlNllNlt laDN Wall St'h III ~ NBFfhAiIh
order at the university, Perchance a
brief explanation of what Is meant by
''Seisin ograph' may be IN order. The
root of the word Is the Greek Sells
rpps," which means earth tremor
ehrth-shake, or earthquake. our adj
iecttve Seismic Is descriptive OF
eArth-shakings In general, whether
so weak as be designated 'tremors
or strong enough to be called
''auakes,'
ANY Instrument or device showing
earth movements Is seisino-scope,
TX tine apparatus enables the on-
server 10 measure the movement ~
becomes a ssismo, meter. Inc pest
llls.rm'l.et ~, npV p''s ,,nt ~ nis
nie"sh' ~ .,,t III 80,
IN.p, , W. ~, y $3.50, 49,, 80
aPpa'a 'ue 20 $751;
FThe etympiVsy OF these terms may
become palmer hs comparison, thus'
Thermometers are known to us all
Separate the compliments ct the word
thermometer, The iirst part "ther-
mo- Crealiy slightly altered form
" me Greek thernhQs, meaning
NJ .,,,ato,." Is oiir Ansiic,,.s form,
W. rrsA,,n,, WEED ,,,,.a,,e,,,. .,,,,s,,v,,,-
" a v,a,,, ,,,,s,.s. ,rars,,na Sc
-, ,,Es.a s s,,rsr--1n Instrument hv
,,',I.i, tarnrnra-ure ci,angas NAV Ne
VII" a,,a .a,,,a red A. AZ
fi"aSteu, a aa,as,t,I. ~, COO, ny tn,,
49, t,,., !, ,fara,,,,n. ~, a ,tn,,lirr 10
i nvs".1 ~ r,e.st,riue o,' c,tantitattyei,
h oscrJh,n- s,,ch nhanvns ,yould he
, -, ,Y's ,pSr,n = .srSne ~ INC mn
,,.at,,s ,,ot rnl,y shows. hnt actuativ
records the temperature changes. it
tbnrnfcs,e tbnse distinstiye meanings
~, ,.tbcr,oo.scone',~- heat f,dlcator--
,naraiv sbo,vinc the phenomenon of
bset yar,oftan, or. tenperat,lre
.ps,,co t9t ~, s,.,,, o,,et q "a -,,.sas.
49,. ~ bsat ,,ssjstion nv tarnneraf,,re
chsrsn, IsS .,.tharraa- s.ran h''--a re-
cnrier 90 te,,ea,att,,s CHANGES
~
SS way OF analogy consioet me
meaning OF barometer ana m com,
~, :, ., ~ M, n,,,,.en, ,er,,,
.,bar(,I,.eter ra,ti,, r., .cr, tet.. tl,ongt,
,,s.,,,o n, To-. b hsynr,'ntar ,,ith Soc.
os,a s,,,iaS,Ie ,c,e,,e,,j ,rnors .iri,,ras-
go, y thrat, ~ rnssccn,,.
,.',,,s .',,oss,,-o r,.aoI.,. IA
iNe'N9 %. 60
Nbaro-graph' means air-pressure re-
cprder
Returning to seismic Instruments:
AS stated a sefsmAgraph Is a revealer
and recorder OF earth crust move
ments. As d matter of fact, no sels-
nograph is OF great service unless 1t
measures as II records the earth
movement. AS the term is usually
understood therefore. a seismograph
is q device capable of revealing,
measuring a,,d recording MS 10 meas-
urem.nt ali earth movements nj the
place where the Instrument IS set IN.
BEST IN THE WORLD.
rhe satsr,oc,a NH .np,arotne NOW IN
process of installation at the University
of Utah ~ the best pbtninahle. me
writer speaks adyiseiiy In saying that
the equipment Is the most efficient thus
far SET M In this country and one OF
the best ever Installed anywhere IN the
world, The apparatus is OF the Omori-
Bosch type, modified and improved
however rs compared with the ordinary
Instruments OF this type.
In principle the apparatus is striking
ly simple Were II possible te secure
n fixed point above the earths surface
a foot or so above would be nmple-7s,ti
point being stationary with relation 10
the earth beneath, then we could affix
n recording pencil to this stationary
point and adjust the recording nstru
ment so as 10 trace n record on plane
set ON the earth and therefore
moving as the earth's surface moves.
Obviously the arrangement could be
reversed--so as to place the recording
pcslci-. i'm fixed connection with the
earth. the receiving sheet being then in
immovable connection with the fixed
point above the surface OF the earth.
As such point--iixcd and stationery.
uniiifuerced by any earth-surface
moveinent--is practically unattalnable.
W. approach the stated conditions as
nearly as possible in the manner follow
ing.
HOW 1T WORKS.
na,,-,. .i,-,,, =. ,.,...,., -,
st,sble support by means Of fiexible
MI MI; ~ .re c1se %, sarll,ruse n,ose-
I ~, ,,l, 0'''u' ~ .a,.
a,ta ~ ts , Wv rl'.'S WlS Vs..
,his wS,S' VI 1.saVr , w! PuS
~ ~ liz ps Sas,lS n1sp'aora
~, 80. ,,s 49, ~
~ s -. ~ .l,'u Moui
-, -. , smi1,s'"s VIZ o'eh'a'io" %
"e"NS Me'sn',
Such IN briet is the essential prln-
ellAe according TO Wnlch has been con-
slipcte' me appafaluh now III lpstaila-
non az me University ~ utah, a sa-
called Dehdulun, speclhed as weighing
iuo. kilograms "a llltle more than 40
pounds. hYofaupols(' is suspended by
tnlil ana ne%lple yer STRONG ana capable
four and a half feat nigh, The heavy
Welshl i kept AZ an angie OF about
~ nescess Win Iyl elSe ~ tne vertical
nnS VI we piliai ns p"t WIN cont
ailu 9o nni a1'aS ~ ne uoulau.
nees" .hatotr,, 80 ~ .,,,,, eu,ss'.i
S.choa 90 III ,.aIaht VI ' 5yn ,,,, -
~ onex ~ he si,eistnn conc cspri.e a