2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Hauv xyoo 2002, cov txiaj ntsig tau los ntawm Sudbury Neutrino Observatory, ze li 2, 100 meters (6, 900 ko taw) hauv av hauv Creighton nickel mine ze Sudbury, Ont., qhia tias hnub ci neutrinos tau hloov pauv. lawv hom thiab yog liuas neutrino muaj me me. Cov txiaj ntsig no daws teeb meem hnub ci neutrino.
Yuav daws qhov teeb meem hnub ci neutrino yog dab tsi?
Kev daws teeb meem hnub ci neutrino yog dab tsi? Txoj kev daws teeb meem no yog qhov nrhiav pom tias neutrinos oscillate ntawm peb hom sib txawv thaum lawv taug kev los ntawm qhov chaw nruab nrab ntawm lub hnub thiab lub ntiaj teb.
Dab tsi yog qhov teeb meem neutrino hauv hnub ci physics?
Qhov teeb meem hnub ci neutrino, muab tso yooj yim, yog qhov sib txawv uas muaj nyob nruab nrab ntawm cov flux ntawm neutrinos uas peb kwv yees lub hnub yuav tawm raws li luminosity thiab lub zog, piv rau qhov peb tau kuaj pom hauv ntiaj teb.
Lub hnub ci neutrino qhov kev sim ua pov thawj tias ntau tshaj ib hom neutrinos tau kuaj pom?
Ray Davis ntes hnub ci neutrinos hauv kev sim hauv av.
Nyob rau xyoo 1989, kev sim Kamiokande hauv Nyij Pooj ntxiv rau qhov tsis meej pem. Lub tshuab nqus dej ntshiab pom cov neutrinos ntau dua li Davis qhov kev sim, kwv yees li ib nrab ntawm tus lej kwv yees. Tab sis tseem muaj cov lus nug ntawm tag nrho cov uas ploj lawm neutrinos.
Hnub ci neutrino teeb meem yog dab tsi thiab peb txoj kev nkag siab tam sim no yog dab tsi?
Qhov teeb meem hnub ci neutrinotxhawj xeeb txog qhov sib txawv loj ntawm cov hluav taws xob ntawm lub hnub ci neutrinos raws li kev kwv yees los ntawm lub hnub lub luminosity thiab raws li ntsuas ncaj qha. Qhov tsis sib xws tau pom thawj zaug hauv nruab nrab-1960s thiab tau daws nyob ib ncig ntawm 2002.
Pom zoo:
Lub hom phiaj kev daws teeb meem tau npaj los ntawm leej twg?
Lub Hom Phiaj Kev Txiav Txim Siab tau txais los ntawm Pawg Neeg Saib Xyuas Kev Ncaj Ncees ntawm Pakistan thaum Lub Peb Hlis 12, 1949. Tus Thawj Kav Tebchaws, Liaquat Ali Khan, tau nthuav tawm hauv lub rooj sib tham thaum Lub Peb Hlis 7, 1949.
Qhov teeb meem millenium twg yuav daws tau tom ntej?
Tam sim no, tsuas yog ib qho teeb meem Millennium nqi zog tau daws yog the Poincaré conjecture, uas tau daws nyob rau hauv 2003 los ntawm Lavxias teb sab lej Grigori Perelman. Qhov twg yog qhov teeb meem nyuaj tshaj xyoo txhiab? Hnub no cov lej yuav pom zoo tias the Riemann Hypothesis yog qhov teeb meem tseem ceeb tshaj plaws hauv kev ua lej.
Vim li cas tus neeg muag khoom mus ncig ua qhov teeb meem tsis tuaj yeem daws tau?
Qhov no txhais tau tias TSP raug cais raws li NP-nyuaj vim tias nws muaj tsis "ceev" dawsthiab qhov nyuaj ntawm kev suav cov kev zoo tshaj plaws yuav nce ntxiv thaum koj ntxiv ntau qhov chaw mus rau teeb meem. Qhov teeb meem tuaj yeem daws tau los ntawm kev txheeb xyuas txhua txoj kev ncig mus ncig los txiav txim qhov luv tshaj plaws.
Lub sijhawm daws teeb meem ntawm lub khoos phis tawj twg peb xav tau?
Hardware Troubleshooting Tools Software diagnostic disk. Multimeter. Cable tester. POST daim npav. Dab tsi yog cov cuab yeej siv los daws teeb meem? Network Troubleshooting Tools Txhua IT Pro Yuav Tsum Paub Ping. Cov cuab yeej siv network feem ntau siv thaum daws teeb meem hauv network yog ping utility.
Qhov txawv ntawm qhov teeb meem thiab teeb meem yog dab tsi?
Raws li adjective qhov txawv ntawm qhov teeb meem thiab teeb meem. yog tias teeb meem yog teeb meem; nyuaj los kov yeej lossis daws tau thaum muaj teeb meem tsis txaus ntseeg lossis tsis txaus siab. Puas teeb meem grammatically yog lawm?
