
orther jeffrey dempster

orther jeffrey dempster (aagashtu 14,1886-marchi 11,1950) oka kenadian-american bhouthika shaastravetta, maas spectrometrylo thana krushiki mariyu 1935loe euranium isotope 235yuu aavishkaranaku prasiddhi chendaaru.
prarambha jeevitam mariyu vidya.
dempster kenadaaloni ontarioloni torrentolo janminchaadu. athanu 1909 mariyu 1910loe torranto vishwavidhyaalayamlo varusaga bachelor mariyu masters degreelanu pondaadu. athanu germanylo chaduvukovadaniki prayaaninchi, modati prapancha yuddham praarambhamlo united statesku bayaludaeraadu; akkada athanu thana Ph.dii. chikago vishwavidhyaalayamlo bhouthika saastramlo patta pondaaru.
vidya vrutti.
dempster 1916loe chikago vishwavidhyaalayamlo bhautikasastra adhyaapakulalo cheraadu mariyu 1950loe thana maranam varaku akkade unnadu.
rendava prapancha yuddham samayamlo athanu prapanchamlooni mottamodati anvaayudhaalanu abhivruddhi cheyadaaniki rahasya manhatton prajectlo panicheesaadu.
dempster 1932loe american taatvika samaajaaniki mariyu 1937loe united states national academy off sainsesku ennikayyaaru.
1943 nundi 1946 varaku, dempster chikago vishwavidyaalayam yokka metallurgical laboratory ledhaa "mett lyab" kuu pradhana bhouthika saastravettagaa unnaaru, idhi manhatton prajectku samagramgaa sambandhinchinadi mariyu anhu bambula tayaareeki avasaramaina padaarthaalanu adhyayanam cheyadaaniki sthaapinchabadindi.
1946loe ayana orgaon national laboratorylo division directorga baadhyatalu sweekarinchaaru.
dempster marchi 11,1950naa 63 samvatsaraala vayasulo floridaloni stewartlo maraninchaadu.
parisoedhana.
1918loe, dempster modati aadhunika maas spectrometernu abhivruddhi chesindi, idhi oka shaastreeya upakaranam, idhi bhouthika saastravettalu oka namuunaalooni muulakaala dravyarashi dwara sammelanaalanu gurtinchadaaniki mariyu namuunaalooni muulakaala isotopic kuurpunu nirnayinchadaaniki veelu kalpistundi. dempster yokka maas spectrometer munupati samskaranala kante 100 retlu ekkuva khachitamainadi, mariyu maas spectrometerla praathamika siddhaantam mariyu roopakalpananu sthaapinchindi, idhi netikee upayoginchabadutondi. thana vruttipai dempster parisoedhana maas spectrometer mariyu daani anuvartanaalapai kendrikrutamai undhi, idhi 1935loe euranium isotope 235yuu aavishkaranaku daariteesindi. vaegamgaa vistaristunna vichchitti anhu golusu praticharyanu kaliginche eee isotope saamarthyam anhu bambu mariyu anhu shakti abhivruddhiki veelu kalpinchindi. dempster saanukuula kiranaalapai adhikaramga kooda prasiddhi chendindi.