2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
tus so nyob qhov twg? Qhov chaw zoo tshaj plaws rau tus so ntawm baryons yuav tsum nkaum yog nyob rau hauv diffuse gas ntawm lub galaxies: lub intergalactic nruab nrab. Astronomers tuaj yeem kwv yees tus nqi ntawm cov pa hauv nruab nrab intergalactic los ntawm qhov tseem ceeb suav txog cov atoms uas nqus lub teeb los ntawm quasars nyob deb.
Yuav pom cov baryons ploj lawm li cas?
Kev daws teeb meem. Qhov teeb meem baryon ploj lawm tau tshaj tawm tias yuav daws tau rau xyoo 2017 thaum ob pawg ntawm cov kws tshawb fawb uas ua haujlwm ntawm nws tus kheejpom cov pov thawj rau qhov chaw uas ploj lawm baryons hauv intergalactic teeb meem. Cov baryons uas ploj lawm tau raug postulated kom muaj nyob li kub strands ntawm galaxy khub (WHIM).
pom baryons nyob qhov twg?
Kev suav pej xeem ntawm lub ntiaj teb lub baryons qhia tias 10% ntawm lawv tuaj yeem pom hauv galaxies, 50 mus rau 60% hauv qhov nruab nrab circumgalactic, thiab qhov seem 30 txog 40% tuaj yeem nyob rau hauv qhov sov-kub intergalactic nruab nrab (WHIM).
tag nrho cov baryons mus qhov twg?
Ib pawg ntawm baryons cua compressing cia thiab igniting nuclear fusion, teeb pom kev zoo li hnub qub. Thiab ib pawg ntawm cov hnub qub no xaus rau kev sib sau ua ke rau hauv lub nroog loj heev: lub galaxies.
Qhov teeb meem baryonic feem ntau pom nyob qhov twg?
Tsuas yog kwv yees li 10% ntawm cov teeb meem baryonic yog nyob rau hauv cov hnub qub, thiab feem ntau ntawm cov neeg nyob hauv qhov chaw nruab nrab ntawm galaxies hauv strands ntawm kub, kis tawm teeb meem hu ua lub sov-kub intergalactic nruab nrab, los yog WHIM.
Pom zoo:
Yuav tsum cov kws tshawb fawb coj rov qab cov tsiaj uas ploj lawm?
Nrog rau kev sib sau ua ke ntawm cov tsiaj txhu uas ploj lawm 'cov ntaub ntawv caj ces, cov kws tshawb fawb tuaj yeem txhaj rau hauv lub qe ntawm cov tsiaj nyob uas muaj caj ces ze rau qhov lawv tab tom sim coj rov qab los. Yog li kev coj tsiaj rov qab los ntawm qhov tuag yog qhov ua tau, yog tias tsis tuaj yeem thiab kev siv nyiaj ntau.
Nyob rau hauv cov yeeb nkab hauv nruab nrog cev uas harmonics ploj lawm?
Yog li ntawd, qhov kev xaiv raug yog A i.e., 15 Hz. Lus Cim: Tsis muaj qhov tsis muaj qhov sib haum xeeb hauv cov kav dej qhib. Qhov zoo ntawm lub suab los ntawm cov yeeb nkab qhib lub cev yog, yog li ntawd, ntau dua li ntawm cov yeeb nkab kaw hauv nruab nrog cev uas tag nrho cov kev sib haum xeeb ntawm cov hauv paus ntsiab lus ploj lawm.
Puas yog kaus ntxhw sau cov ntoo peckers uas ploj lawm niaj hnub no?
Ivory-billed Woodpecker yog ntawm 24 hom noog nyob rau sab hnub poob Hemisphere suav tias yog "poob." Cov tsiaj no tau txais cov xwm txheej Critically Endangered los ntawm International Union for Conservation of Nature - ib lub npe uas lees paub tias hom yuav tsis ploj mus, tab sis nws tsis paub tias muaj sia nyob … Vim li cas ivory-billed woodpeckers ploj lawm?
Daim ntawv cog lus twg uas ploj lawm hauv nucleotides?
Thaum nucleotides koom ua ke rau hauv DNA, cov nucleotides uas nyob ib sab txuas los ntawm a phosphodiester bond: covalent bond yog tsim los ntawm 5 'phosphate pawg ntawm ib nucleotide thiab 3'- OH pab pawg ntawm lwm tus (saib hauv qab). Hauv qhov no, txhua txoj hlua ntawm DNA muaj "
Puas yog cov log tsheb uas ploj lawm ib qho mot tsis ua hauj lwm?
Puas yog cov log tsheb tawg ua rau MOT tsis ua haujlwm? … Thaum koj coj koj lub tsheb mus kuaj, lub log tsheb yuav tsum muaj qhov tob ntawm qhov tsawg kawg nkaus 1.6 hli (qhov tsawg kawg nkaus raws li txoj cai) thiab yuav tsum tsis txhob muaj kua muag, bulges, los yog tawg nyob ib ncig ntawm lub log.
