2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Qee lub ntsiab lus hnyav hauv lub rooj zaum yog tsim thaum khub ntawm neutron hnub qub sib tsoo cataclysmically thiab tawg, cov kws tshawb fawb tau pom thawj zaug. Lub teeb lub teeb xws li hydrogen thiab helium tsim thaum lub sij hawm loj bang, thiab cov mus txog hlau yog tsim los ntawm fusion nyob rau hauv lub cores ntawm hnub qub.
Thaum twg cov ntsiab lus hnyav dua?
Tag nrho cov hydrogen thiab feem ntau ntawm cov helium hauv ntiaj teb tau tshwm sim 13.8 billion xyoo dhau los los ntawm Big Bang. Cov seem ntawm cov tshuaj lom neeg, tshwj tsis yog rau me me ntawm lithium, tau tsim nyob rau hauv stellar interiors, supernova explosions, thiab neutron-star mergers.
Vim li cas thiaj ua tsis tau cov ntsiab lus hnyav dua?
Cov ntsiab lus hnyav tuaj yeem tsim tsis tau tom qab Loj Bang vim tias tsis muaj cov nuclei ruaj khov nrog 5 lossis 8 nucleons.
Lub caij hnyav tshaj plaws uas tuaj yeem tsim tau yog dab tsi?
Lub caij hnyav tshaj plaws uas tshwm sim hauv ntau yog uranium (atomic tooj 92). Koj tuaj yeem ua kuv li kub. Technetium (atomic tooj 43) tsis tshwm sim lawm. Promethium (atomic tooj 61) tsis tshwm sim lawm.
Txhua yam hnyav dua tuaj qhov twg?
Lub ntiaj teb peb lub teeb tshaj plaws - hydrogen, helium thiab lithium - tau tsim nyob rau lub sijhawm ntxov ntawm cosmos, tsuas yog tom qab lub Big Bang. Feem ntau ntawm cov ntsiab lus hnyav dua lithium, mus txog rau cov hlau ntawm lub sij hawm lub rooj, tau forged billions xyoo. Tom qab ntawd, hauv cov cores ntawm cov hnub qub.
Pom zoo:
Cov lus nug puas tuaj yeem yog cov ntsiab lus?
Ib qho lus nug sib txuas tuaj yeem yog cov ntsiab lus lossis cov khoom ntawm cov lus qhia hauv lwm nqe lus. Leej twg hais rau koj tias yog dag. Koj tuaj yeem yuav leej twg koj nyiam. Nws yuav noj txhua yam uas nws pub. Cov kab lus nug puas muaj cov ntsiab lus?
Ntawm yog lub ntsiab lus ntawm lub ntsiab lus ntawm lo lus devout?
nature. Dab tsi yog qhov denotative lub ntsiab lus ntawm lo lus devout? denotative lub ntsiab lus: Ib yam dab tsi kos npe los yog xa mus rau; ib lub ntsiab lus ntawm lub cim. teb: pious. Vim li cas Chaucer sau Lub Canterbury Tales hauv lus?
Cov tsheb kauj vab hnyav hnyav dua caij?
Kev tsheb kauj vab hnyav tsis yog qhov yooj yim dua caij, tab sis lawv kuj tsis tas yuav nyuaj dua ib lab zaug. Nov yog qee cov lus qhia rau kev tuav lub maus taus hnyav. … Cov maus taus hnyav tau yooj yim dua ntawm txoj kev loj, yog li nws yog qhov zoo rau kev xyaum caij maj mam kom koj kawm paub tswj lub maus taus ntawm qhov nyuaj tshaj plaws.
Puas muaj lub ntsiab lus ntawm tus kheej kom ua haujlwm hnyav dua?
Boxer tiag tiag txais ob lub ntsiab lus. Thawj yog, 'Kuv yuav ua haujlwm hnyav dua. ' Nws embraces no maxim raws li ib lo lus teb rau txhua qhov teeb meem los yog poob. Nws txoj hauj lwm hnyav txhawb nqa tag nrho lwm yam tsiaj thiab txhawb kom lawv ua ntau dua li qhov lawv tau ua.
Rau kev nyeem tau zoo dua nws yog qhov zoo dua tias cov ntsiab lus mos txwv yog?
Kua koj cov ntsiab lus mos txwv symmetrical Yog ua tau Lub ntsiab lus, ib kab ib, ob kab ib, thiab lwm yam. Nws yooj yim dua ntawm lub qhov muag thiab yog li yooj yim ntawm tus nyeem. Thaum twg koj yuav tsum siv cov ntsiab lus mos txwv?
