| Show A WAVK OK IK1IIT Ill lcujlh Ii I n Vn MauJard of Ucauir A dinner was given by n company ol Kleiitlita at the lUme Hotel thin other high to a dletmnulihed ueur comer lu the rclentlflo ootcrle In Chloai < The guest 01 bo our woe Dr A A Mlebelion The dinner waa shoo I srys the Chicago Jliruil to eelelitalo u muoti his splendid l achieve iifnla In idiyelcitl 1 whence In France during the pest j ear as to welcome ilm as hold rofeeter In physic and dlioilor of the llyeren physical laboratory at thou Uulrrolly 01 Chile sgo This U the first publla anuuiiiiti mentln tlilacountry uf the illicovcry which has been refined lulu piriCllon by 1ruinwr Mlohel u lu a yiwiii nzerl01euls at Purls under a oornuilMlon ty the Interuatloual loiiimlttee of weight and tots urea It Is 1 the eiUbUiuuioni ol I a new tandard of the measure over that ol he Ulster and this wonderful though It t may stem Is I the length of a wave of IIKI To such ivrfecllon bavu then experiments been wanted Hint It how may LuooulUeutly nenrlej that If the standard meter aol all III carles should be destroyed ur allured lu the course of timeit new staudrd could be wade wluxe leuglh caul I not be ill tliiRiilshed Irom the orluliml Curler worn thins aide I by aldeiilvlUK natural uml of Infill wuioh depeuue only on ineprii erues 01 uulnulo atom auu iheuuivorMl ether wLlch wleatlsts wy are tau least changeable e it l all thill The moet luiiorlant of 1rolMior MlcneUouj many ruifarches In light luilude Uun eiKrliueuts for lOu delcrmlostlonof velocity the t lIel ol the motion of thou luudluiu upon velocity aiplluttlon I of lUht I wave Ihedlaiuutorol 1 Jupiters silellllmnuii the separation supposed simple llnta of the spectrum lulu highly oomplex Inrs thus ulI > lomnlln the work of the 1ctrOOIo as the rulcruoalll dues the eye The danger of standards of length being dratruywl or chauiIUK lu time has caused physicists lo seek a natural itaudurdot lenxlu A ceilalu porluu of the rarthe clriuiuference has been prupused but has ben found not lu be practical Tha Leave kunth of Until was irohably first proposed pro-posed by Aro a half ceutury ago but later by Dr lould Hlncu lint various attempts horn been mado to use the wave lonijlli as standard In n method which Involved the uo of a dlllraotlouiiratluK but none has bteu suflUlently aoourte About four year ago snno preliminary prelimi-nary experiments were made Ii Jlevelaml by 1rolissor MIcheliMU lu collaboration with 1roleewr Morley A method uas devised by which the error In using the light wave as a unit was Ionic lndeeudent of the number of waves nuaiured that Is I the error was the same whether 2000000 or 1000000 vtave were nimj The same ex peilmruts develq the Net that moat lluhl waves are highly coniplix tine ntot odmlum light wire found lobe lo-be I vaiubly slmplu I llmo fullllllnii all conilliioiia rinulrid of a natural unit of length 1 1111 Is 1 supplemented uy IrouMur lllcUtlou Inferential uomlurtor an Instrument devise hy blot 10 oplly Ibis natural uMI to the uieureiueut of tenons it 1 was a year ago nt the suggestion I I of Dr Uould the imlnent American niembrr of Inlerualloual conimllle on WeUhl and meaturer that till committee Imieil a formal 1 Invliatiou lo Iro u sur allcheleoii to unJvrlako u telin nf xrwrlment haring lor All object the rihit uitermlntllou of the riuillonof he kinnusrd meter to the length i > f Kllitht wave or the I number oh lengths I I fl a wave of light III a eland ar > meter Home Ilea of I the aoouracy nf the work uiay be formed wheu II Is I staled Ihnttolmol I practical use Hie l error of r mrlMti intift not ixcec1 one rt inllUfist In a00 iiKIO that Is lo coy Iwo eel 111 alHdilerinlnatlrna of the number of wore lengths lu the slnudard meter mu > t not vary more hail oni tort to 2000nuu Ihe inlcleucy of thu com parnlor uwddepe > ndJ largely upon the number of plnue eurfacte which molt nil vary OLrtnllllonlli part of an loch from the true plane These nero tuniinlully made by J A llratbesr an American 1 of Allvfthany City IA The amratus for the work was completed sill taken to faro ISD2 and the xirlniente were carried on In the t buteau of wehihlsahd measures std oolIulI < nil net with ado Ice of succeeslhnl exceeded the treated IIOIAS and with the remit relate J hOJ irof Muhelwn I got his tarly train tilt In the nlioul ol Bin Irancitco In 1M9 he received an np lntinont nt large 10 n codellllp at Aniia lli from Irnldent Oriinl Ire graduated lu 1871 and tuiuarked on the usual two ears oruUe abo ru a mitnolwar Upon hie return lie xsu ordeicil back to Annnpolls as Innlruclor In physics Hero ho cuuducteil his Ills orhilual InveitlKatlon on the velocity of light n u table and brilliant series of experiments lie riigncU In 1930 and went tu luropu etudy physics Him of thu 11101 emlnenl moil of Ihe duywireliHuitrutlors I Vonltelailiols I at Ilcllu JulniKe al HeldelberK and UoruuanaMiieoailat 1arls He studied stu-died while In liuroie also chemliry Dud luntlirniatlcs Relunliu In 1811 I he filled the chair of I bylc lib Caen Hchool of Appllnl Hclercv at Ulevehn I Uhl lu 1SV Im accei ted that cltolr ollhyltl at Clark Unlvcr shy wlere he lemalned until he alit olleiei a-lit beau prof worship lu the now University nf Chicago flue hailllul Kyersvn hyslcal lit uratoiyof nhluli he Is In bodlreclor Ulieatin I lnuplelloo It will be the beet of lie kind The hulldluic Is the glllif Mrlln I A Hyriou dral sea se-a memorial U the lather and the giver lim spared no rrpenio lo mko tills Isboralory tin nobiesl In the w rid |
