Evening star., 1949-05-02
Tides in Core OF Eorth
increasing Days Length
Planets Rev olus,on Rs.ns Slo~ ed,
British Sc,snt,.t. Rsrort
Ry 7 Asm3s R. ffr.rv

THass rassed ey ins rssan a~ tss eartAs
12gsc exoFs are s3owznS tae raamet r~yc5Is.
tsan ans increasing Ire Arexsn a tire esy.
Tf8s iA~sss a advanced "a q r~fscs1 rFw.
pared fer inr etsrsA cexAn ~ ire Rssts.a
Association sor Tire Advancement ~ acs<ces
b Dr. " NJ, E1s&xSrs et Ihe pnGrcsSsty II
penasslsansa
II long has sseen known thai ine aengts1 es
the CAV s increasing BY q rrgnHte tFacgaca
cf q ssce-sa each yraF Ta&A geneTaI}s hAa
e~en attributed 10 ire FTgstonAi agsg 81 tAces
in aaAl4cw seAs-tae ReVGnk Sea alone ar.
counting tog alrnos; rail- Ire erect b. 4
a4So Il kacSn that the core af the eAf4e ss~a
Is aautd N s strange sorrn-gron al an sncs.
noaay hlgh temperature eus unaeg ttr-
neHde&s pressure u we446 heseNer
respond AXE water 10 the paa @, Tire sncsa.
pF. ElsaSSes say.
Brakes en- RstAliea.
These internal tides act like brakes ~
the eafths rotation ne sAys ana NAtssfy
the observed rates o~,tsr than e the :wlat-
oanon is asctieed 10 cgaE Of seA tIdes aloas
The theory assumes that the core oi ire
earth Is rotating Soms~ mas more slc~gs than
the shell and that there arr arras OF udal
turbulence. essentially storms INSIDE tive
earth.
The idea Of the dTsg DUE 10 internal uaes
receives support from long time records ~
y
areas recently published BY the terrestrial
magnetism department Of thr CArnrEr In.
stitution Of Washington These indicate q
different rotation rate for the core and the
crust and a gradual displacement OF the
latter from east 10 west Il Is almost as u
there we're two rotating planets one inside
the other.
The shortenink o! the day due 10 thess
internal tides is ineonSeauenuAl fof Any
historic period hut builds Up into hours In
the course OF geological erAS,
An apparent direct association between
cosmic rays and the progress of tuberculosis
has just been shown by Dutch investigator.
Dr.. S. q. Ong Of the University Of Leyden.
These rays actually infinitsstimAily
minute elemental parsicles-~eonStAnuy are
bomhardtng the earth from outer space and
some will pass through a shield OF lead foot
thick Hitherto. however. there has been no
evidence OF physiological effects.
DR.. ons. who reports his teku in the
Journal OF the British Association for the
Advancement OF Science injected mice with
tuoercle bacilli At Leyden. essentially at Aea
level. and took them Immediately 10 the
nnisersity's station In the hIgh Alps Here
the intensity OF the coSmie rays wAs much
greater.
Split late Groups,
Inc animals. all or which had received the
same dose OF bacilli. we're split in sroups
Some we're shielded from cosmie rays other.
exposed fully. and others partially exposed.
Length Of life remained essentially the
same for all but there was q noteworthy
difference in the number and severity Of
hemorfhages, Those with the greatest ek-
posure suffered worst
The hemorrhages came, DR.. Ong saya
when barometrie pressure vas either In
creasing or decreasing II is known that
the strength OF coSmie radiation varies
greatly with this pressure. The changes did
not affect any Of the mice entirely screened
from the particles out OF the cosmos
A somewhat contradictory finding. how
ever. was that the protected rats lost weight
much more rapidly than did the exposed
ones.
The effects good and bad. we're relatively
small. but sufficient TO indicate that this
radiation may have TO be considered In high
mountain tuberculosis hospitals Presume bly,
humans would be affected in the same way
Is rata