Video: Yam twg yog tus kws tshawb fawb James Chadwick?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sir James Chadwick, CH, FRS (20 Lub Kaum Hli 1891 - 24 Lub Xya Hli 1974) yog ib tus kws kho mob Askiv Askiv uas tau txais 1935 Nobel nqi zog hauv Physics rau nws nrhiav pom cov neutron nyob rau xyoo 1932. Xyoo 1941, nws tau sau tsab ntawv kawg ntawm MAUD Daim Ntawv Qhia, uas tau tshoov siab rau tsoomfwv Meskas kom pib tshawb nrhiav lub foob pob loj heev.
Tom qab ntawd, ib tug kuj nug, leej twg knighted James Chadwick?
Xyoo 1945, Tsoom Fwv Tebchaws Askiv ua knighted nws rau nws lub sijhawm ua tsov rog, thiab nws tau los ua Sir James Chadwick . Tsoom Fwv Teb Chaws Asmeskas tau muab nws qhov khoom plig ntawm Merit hauv xyoo 1946.
Ib yam li ntawd, qhov kev sim James Chadwick hu ua dab tsi? James Chadwick tau muab txoj haujlwm los taug qab cov pov thawj ntawm Rutherford txoj hlua khi "proton-electron khub" lossis neutron. Nyob rau hauv 1930 nws tau pom tias Beryllium, thaum bombarded los ntawm alpha hais, emissions lub zog heev ntawm hluav taws xob. Cov kwj no yog thawj zaug xav tias yog gamma hluav taws xob.
Yog li ntawd, tus kws tshawb fawb dab tsi yog Chadwick ua haujlwm nrog thaum nws pom cov neutron?
Ernest Rutherford
James Chadwick tau hais dab tsi?
Txawm li cas los xij, xyoo 1932, James Chadwick ua pov thawj tias nws muaj qhov nruab nrab ntawm qhov nruab nrab nrog txog tib qhov loj li proton. Ernest Rutherford muaj ua ntej npaj hais tias xws li ib tug hais yuav muaj nyob rau hauv atomic nuclei. Tam sim no nws muaj pov thawj, nws tau hu ua "neutron".
Pom zoo:
Leej twg yog thawj tus kws tshawb fawb los kawm cov hlwb?
Robert Hook
Cov kws tshawb fawb twg hais tias txhua tus tsiaj yog tsim los ntawm cov hlwb?
Nws tau lees tias qhov kev xav no yog nws tus kheej, txawm tias BarthelemyDumortier tau hais nws ntau xyoo ua ntej nws. Qhov txheej txheem crystallization no tsis tau txais nrog kev xav ntawm tes niaj hnub. Xyoo 1839, Theodor Schwann tau hais tias nrog rau cov nroj tsuag, tsiaj txhu muaj cov hlwb lossis cov khoom ntawm cov hlwb hauv lawv cov qauv
Tus kws tshawb fawb twg txiav txim siab tias electrons taug kev ntawm txoj kev tshwj xeeb?
Atomic qauv Bohr qauv qhia lub atom raws li ib tug me me, zoo nqi nucleus ncig los ntawm orbiting electrons. Bohr yog thawj zaug nrhiav pom tias cov hluav taws xob taug kev nyob rau hauv nyias lub orbits nyob ib ncig ntawm lub nucleus thiab hais tias cov xov tooj ntawm electrons nyob rau hauv lub orbit sab nrauv txiav txim lub zog ntawm ib lub caij
Tus kws tshawb fawb tau tshawb pom neutrons li cas?
Nws yog qhov zoo tshaj plaws uas cov neutron tsis tau tshawb pom txog thaum xyoo 1932 thaum James Chadwick siv cov ntaub ntawv tawg los mus xam qhov loj ntawm qhov nruab nrab no
Puas yog Charles Darwin yog tus kws tshawb fawb?
Yog li peb yuav tsum tau pib nrog Darwin's Darwinism raws li tau hais tseg nyob rau hauv Keeb Kwm Ntawm Cov Tsiaj Xyoo 1859. Charles Darwin tsis yog, raws li peb siv lo lus niaj hnub no, tus kws tshawb fawb, txawm hais tias nws tau piav qhia ntau zaus thaum nws lub neej