Video: Einstein tsab ntawv hais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov tsab ntawv . Thaum Lub Xya Hli 12, 1939, Szilárd thiab Wigner tau tsav tsheb hauv Wigner lub tsheb mus rau Cutchogue ntawm New York's Long Island, qhov twg Einstein nyob. Thaum lawv piav qhia txog qhov ua tau ntawm cov foob pob atomic, Einstein teb tias: Daran habe ich gar nicht gedacht (I ua tsis txawm xav txog qhov ntawd).
Ntawm no, Einstein sau dab tsi hauv nws tsab ntawv mus rau US tus thawj tswj hwm?
Einstein sau ib tsab ntawv rau Franklin Roosevelt vim nws ntshai tsam Nazis tuaj yeem tsim thiab siv lub foob pob atomic. Hauv nws tsab ntawv sau Lub Yim Hli 2, 1939 nws tau ceeb toom tias ib ib lub foob pob ntawm hom no yog tawg hauv ib chaw nres nkoj, tej zaum yuav zoo heev rhuav tshem tag nrho cov chaw nres nkoj ua ke nrog ib co ntawm thaj chaw ib puag ncig.
Ib sab saum toj no, tsab ntawv Einstein Szilard ceeb toom Thawj Tswj Hwm Roosevelt txog dab tsi? Lub yim hli ntuj 1939, Albert Einstein kos npe rau tsab ntawv , sau los ntawm physicist Leo Szilard , uas urge Roosevelt los pab tshawb fawb txog qhov muaj peev xwm siv nuclear fission ua riam phom. Einstein thiab Szilard ntseeg tias Nazi lub teb chaws Yelemees tab tom tshawb fawb zoo sib xws.
Cov lus nug tseem yog, vim li cas Einstein xav tias nws yuav tsum tau sau tsab ntawv no rau tus thawj tswj hwm?
Vim Albert Einstein muaj yav dhau los tus kheej kev sib raug zoo nrog Roosevelts thiab yog thoob ntiaj teb paub zoo rau nws cov kev txawj ntse, a tsab ntawv qhia rau Thawj Tswj Hwm hais txog kev phom sij ntawm lub foob pob hluav taws xob nuclear tau tsim los rau Einstein tus kos npe.
Lub neej ntawm Einstein qhia koj li cas?
Nws lub neej keeb kwm qhia peb tias txhua qhov kev tshawb pom thiab kev tsim kho yuav tsum raug coj mus rau lub hom phiaj ntawm kev tsim kom muaj kev thaj yeeb hauv ntiaj teb. Peb kuj kawm txog qhov tseem ceeb ntawm kev mob siab rau, kev ua siab dawb, kev ua haujlwm nyuaj, kev tsis qia dub thiab kev hlub rau tib neeg los ntawm nws.
Pom zoo:
Yuav ua li cas koj nyeem ib tsab ntawv tsa suab?
VIDEO Ib yam li ntawd, dab tsi yog qhov hloov pauv thiab lub sijhawm teeb tsa? Qhov chaw nruab nrab ntawm qhov nrawm- lub sijhawm ua haujlwm thiab cov ` sij hawm ' axis muab cov hloov chaw ntawm qhov khoom. Txoj kev nqes hav yog tib yam li ntawm A mus rau C, yog li tus neeg caij tsheb kauj vab qhov nrawm yog tas li ntawm tag nrho.
Vim li cas Albert Einstein thiaj xa tsab ntawv mus rau FDR?
Einstein tau xa ob tsab ntawv ntxiv rau Roosevelt, thaum Lub Peb Hlis 7, 1940, thiab Lub Plaub Hlis 25, 1940, hu rau kev ua haujlwm ntawm kev tshawb fawb nuclear. Szilárd tau sau tsab ntawv thib plaub rau Einstein kos npe uas tau hais kom Thawj Tswj Hwm ntsib nrog Szilárd los tham txog txoj cai ntawm nuclear zog
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Yuav ua li cas yog ob tsab ntawv ntawm cov tsiaj ntawv uas tsis tshwm nyob rau hauv lub sij hawm?
Tsab ntawv 'J' yog tib tsab ntawv uas tsis tshwm nyob rau hauv lub rooj zaum
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm