Show 4 THE LAST FRONTIER SHIP WITH NO O 0 STEEL USED TO STUn STUDY MAGNETISM I. Ity Ily David V INZ NEA Service Writer Scientists have hav known for many man years eus that the tho earth Is a 11 magnet magnel having a north magnetic and II IIma magnetic ma ne-lic ne pole corresponding tc I the poles of or any ordinary magni magnu The Carnegie Institution ha hat hatI I spent much time limp studying tho mag mall magnetic n tlc properties of the earth main j laming a number of ot observation atlon stations and a 0 ship tho Carnegie Car Car- CarI Carnegie negie negle which contains no Iron or ortel I tel steel In its entire construction con to study magnetic effects at sea Put But still Mill l the reason why h th Hi I earth parth Is a magnet 1 arSe remains al one ne ol ot otlie the lie mysteries which the tho pioneers upon the frontier of ot science clence mus mi 3 solve There are arc a number of ot thing come to mind as being th th- sources of the earths earth's magnetism But Dut calculations show that thu are Insufficient For Por example It Is lu I a well known fact that tho the earths earth's surface po po- Kisses an cherge It If an electric charge is put 1 ut m U I a magnetic magl field Is ii pro pro- I That Is why wh U a wire Is sur sur- surrounded surI rounded by a magnetic field wOe when ii iitti I mi nn electric rent current flows lows It II Now Nt w the tho th earth is rotating on inal in its 11 11 axiS l Therefore ThE this chat charge on the earth carth Is In III motion and ant ought to produce a magnolia magnetto fiel lei 1 I as a resu But Dut calculations chow that th thi tlc ne-tlc field which would be pro pro- produced produced In this way wa would b be only one millionth hundred-millionth of the mug mug- field field- which the tho earth doi do dO I Another lo to be bo taken Into Inlo consideration Is U th 1 the he matter or 01 o the Itself U Is compost compos ti tiThe i iThe IThe The ultimate particles arc are i h protons and electrons which com cons pare the atoms atoma of r matter Now the proton Is the ilso unit o ot positive he electricity and the electron Is the unit of or negative negative- Therefore th the rotation of ot the means that bet all these units 01 ol are art rotating and ther her herfor for Cor ought to produce u magne Oct fiel IS 13 s. s However each atom contains th the of or protons us 1111 11 it I sane arre dumber n s rio electrons b bi s ta a 0 result field units unitt to balani balan the Ilse positive that hat created d by y the t e negative units unit Professor ro W. W F. F a. a Swann of ot Yal Vai university suggests a ft possible I s l- l lie ble explanation of ot the m tim ater He Tie suggest suggests hat that I It la Is I likely that when than In rotation positive e and neg negative n neg- neg Hive electricity behave e different lie He H has lisa complicated mathematical this thill view ons Lea to support According 10 to this view th Ih th Is be being be be- amount of ot positive electricity a a result ot of ing rg decreased aa all th tho ho Therefore rotation thre th-re th rt 1 Is b an excess of or negative electricity antI and as a resul rl ul ulof field li I earths earth's magnetic of if the produced |