Science 2024, Hlis ntuj nqeg

Lub hnub ua lub luag haujlwm tseem ceeb rau peb hauv ntiaj teb. Nws muab lub ntiaj teb thiab txhua yam ntawm nws nrog qhov tseem ceeb xws li lub teeb thiab cua sov. Tab sis dab tsi yog hnub ci hluav taws xob, spectrum ntawm lub hnub ci, tag nrho cov no cuam tshuam li cas rau peb thiab ntiaj teb kev nyab xeeb feem ntau?. Kawg hloov kho: 2023-12-17 05:12

Proxima Centauri yog lub hnub qub ze tshaj plaws rau lub ntiaj teb. Nws tau txais nws lub npe los ntawm Latin lo lus proxima, uas txhais tau tias "ze". Nws qhov deb ntawm lub hnub yog 4.22 lub teeb xyoo. Kawg hloov kho: 2023-12-17 05:12

Lub qhov tsua tsov ntxhuav yog ib yam ntawm cov tsiaj qub uas ua rau cov kwv yau txaus ntshai. Txawm tias cov neeg thaum ub tau sim zam nws qhov chaw nyob. Kawg hloov kho: 2023-12-17 05:12

Lub sijhawm ntawm dinosaurs tau ploj mus ntev, thiab lizards loj tsuas tuaj yeem pom hauv tsev cia puav pheej thiab xinesmas. Qee cov neeg sawv cev ntawm flora thiab fauna los ntawm lub sijhawm keeb kwm nyob deb tau muaj sia nyob rau hnub no. Lawv hu ua relics. Kawg hloov kho: 2024-01-18 04:01

Lo lus "ufology" feem ntau pom hauv xov xwm niaj hnub no. Nws lub ntsiab lus tsis yog ib txwm meej rau tib neeg. ufology yog dab tsi? Puas yog kev tshawb fawb lossis kev tsis lees paub rau pawg neeg thoob ntiaj teb? Peb yuav sim nrhiav cov lus teb zoo rau cov lus nug no. Kawg hloov kho: 2023-12-17 05:12

Lub hnub qub Lyra tsis tuaj yeem khav ntawm qhov loj me. Txawm li cas los xij, nws tau ntxim nyiam txij li lub sijhawm qub, ua tsaug rau nws qhov chaw zoo thiab kaj Vega. Ntau qhov chaw nthuav dav nyob ntawm no, ua rau Lyra yog lub hnub qub muaj txiaj ntsig rau astronomy. Kawg hloov kho: 2023-12-17 05:12

Rosalind Elsie Franklin yog tus kws tshaj lij Askiv kws tshaj lij uas nws cov kev tshawb fawb X-ray tau muab kev pom zoo rau cov qauv ntawm deoxyribonucleic acid thiab ua kom muaj nuj nqis ntawm Watson-Crick qauv. Nws kuj pom tias DNA molecules muaj nyob rau hauv ntau tshaj ib daim ntawv. Kawg hloov kho: 2023-12-17 05:12

Cov kab lus piav qhia txog cov khoom ntawm galaxy pawg, pawg loj tshaj plaws, nrog rau ib qho kev txaus siab tshwj xeeb - Veronica's Hair. Kawg hloov kho: 2023-12-17 05:12

Ib tus kws tshuaj Asmeskas nto moo tshaj plaws yog Linus Pauling. Nws phau ntawv keeb kwm muaj kev txaus siab tsis yog rau cov neeg nyob hauv Tebchaws Meskas nkaus xwb, tab sis kuj rau tib neeg thoob ntiaj teb. Tsis muaj qhov xav tsis thoob, vim nws tshawb fawb cov vitamins - kev noj zaub mov zoo li niaj hnub no. Thiab kuv yuav tsum hais, Linus Carl Pauling tuaj nrog cov txiaj ntsig zoo. Nws yog hais txog tus kws tshawb fawb no, uas tau los ua tus yeej ntawm ob qhov khoom plig Nobel, uas peb yuav tham txog hnub no. Kawg hloov kho: 2023-12-17 05:12

Power hauv physics yog to taub raws li qhov piv ntawm kev ua haujlwm hauv ib lub sijhawm rau lub sijhawm uas nws tau ua. Nyob rau hauv lub tshuab ua hauj lwm yog txhais tau hais tias muaj pes tsawg leeg ntawm cov kev cuam tshuam ntawm lub zog ntawm lub cev, vim hais tias tom kawg tsiv nyob rau hauv qhov chaw. Kawg hloov kho: 2023-12-17 05:12

Lub xyoo pua 21st tau coj nrog nws cov thev naus laus zis tshiab thiab muaj peev xwm ua cov khoom tsim tshwj xeeb. Thaum pib ntawm lub xyoo pua twb coj novelties, thiab ua ntej ntawm noob neej tseem muaj ntau yam tshiab discoveries thiab inventions. Kawg hloov kho: 2023-12-17 05:12

Hnub no peb yuav mob siab rau kev sib tham txog qhov tshwm sim zoo li lub teeb siab. Xav txog qhov yuav tsum tau ua ua ntej rau kev tshawb pom thiab qhov tshwm sim rau kev tshawb fawb. Kawg hloov kho: 2023-12-17 05:12

Peb puas tuaj yeem xam qhov chaw nyob hauv thaj chaw kub ore tso, txiav txim siab tus nqi ntawm nws cov peev txheej hauv ib qho kev tso nyiaj tshwj xeeb, txhawm rau txiav txim siab seb nws puas muaj txiaj ntsig los tsim lub tuam txhab mining ntawm no? Tom qab tag nrho, kev tshawb nrhiav, drilling qhov tob thiab kev tshawb nrhiav mines yuav siv sij hawm ntau xyoo thiab ntau tshaj li ib txhiab daus las. Puas muaj tej cim qhia tias muaj cov hlau muaj nuj nqis nyob rau hauv qhov tob ntawm lub ntiaj teb sab hauv yog kwv yees?. Kawg hloov kho: 2023-12-17 05:12

Nyob rau hauv cov noob caj noob ces, cov txheej txheem ntawm DNA, RNA thiab protein synthesis muab faib ua peb theem kom yooj yim ntawm kev piav qhia: pib, elongation thiab txiav. Cov theem no piav qhia txog cov txheej txheem sib txawv rau cov khoom sib txawv ntawm cov molecules, tab sis ib txwm txhais tau tias "pib", "txoj kev vam meej" thiab "ua tiav". Kawg hloov kho: 2023-12-17 05:12

Kev txiav txim siab txog qee qhov teeb meem nyob rau hauv lub moj khaum ntawm chav kawm lej hauv tsev kawm tsis yog ib txwm ua tau. Piv txwv li, qhov no siv rau kev faib tawm ntawm cov lej teev - nws tsuas yog kov thaum dhau. Rational, irrational thiab ntau lwm tus - lawv nyob qhov twg, lawv siv rau dab tsi?. Kawg hloov kho: 2023-12-17 05:12

Ntau yam hauv quantum mechanics tseem dhau qhov kev nkag siab, ntau zoo li zoo heev. Tib yam siv rau cov lej quantum, qhov xwm txheej uas tseem tsis paub hnub no. Kab lus piav qhia txog lub tswv yim, hom thiab cov hauv paus ntsiab lus ntawm kev ua haujlwm nrog lawv. Kawg hloov kho: 2023-12-17 05:12

Rutherford Ernest (xyoo ntawm lub neej: 08/30/1871 - 10/19/1937) - English physicist, creator of the planetary model of the atom, founder of nuclear physics. Nws yog ib tug tswv cuab ntawm Royal Society of London, thiab los ntawm 1925 txog 1930 - thiab nws tus thawj tswj hwm. Tus txiv neej no yog tus yeej ntawm Nobel nqi zog hauv Chemistry, uas nws tau txais xyoo 1908. Kawg hloov kho: 2023-12-17 05:12

Tsis zoo li eukaryotes, cov kab mob tsis muaj cov nucleus tsim, tab sis lawv cov DNA tseem tsis tau tawg mus thoob plaws hauv lub xovtooj, tab sis yog concentrated hauv cov qauv compact, uas yog hu ua nucleoid. Hauv cov ntsiab lus ua haujlwm, nws yog ib qho analogue ntawm lub tshuab nuclear. Kawg hloov kho: 2023-12-17 05:12

Cov lus piav qhia me me ntawm cov khoom tseem ceeb ntawm nitroglycerin, txoj hauv kev rau nws cov kev npaj hauv chav kuaj thiab (raws li kev ntxiv) theoretical txoj kev rau nws cov synthesis nyob rau hauv ib txoj kev artisanal. Nitroglycerin yog ib qho khoom tawg tsis ruaj khov heev, thaum tuav nws, tsis txhob hnov qab ua raws li kev ceev faj txog kev nyab xeeb. Kawg hloov kho: 2023-12-17 05:12

Lub ntsiab ntawm cov hmoov txhuv nplej siab, lawv cov qauv tshuaj, cov khoom, cov tshuaj tiv thaiv. Kawg hloov kho: 2023-12-17 05:12

Yog tias koj dheev xav txog koj tus kheej ua tus kws tshaj lij alchemist lossis tus kws tshawb fawb muaj yeeb yuj, ntawm no yog cov lus qhia rau ib txoj hauv kev zoo tshaj plaws los ua kom npau suav muaj tseeb: ua kom muaj txiaj ntsig zoo rau ib yam dab tsi kub. Kawg hloov kho: 2023-12-17 05:12

Ib qho lus piav qhia luv luv ntawm ib yam ntawm kev kho qhov muag isomerism. Kawg hloov kho: 2023-12-17 05:12

Kev piav qhia ntawm lub sijhawm sib txawv thiab txoj hauv kev nrhiav. Kawg hloov kho: 2023-12-17 05:12

Kev tshuaj xyuas luv luv ntawm cov piv txwv ntawm kev tawm tsam uas tsis ua raws li Markovnikov txoj cai, thiab cov laj thawj uas ua rau muaj kev txav mus los. Kawg hloov kho: 2023-12-17 05:12

Qee thawj thawj cov ntaub ntawv hais txog chemistry ntawm hydrogen compounds ntawm non-metals. Kawg hloov kho: 2023-12-17 05:12

Copolymer yog ib yam ntawm cov macromolecular compounds. Lawv tau siv dav hauv kev lag luam hauv daim ntawv ntawm cov pa polymers nrog cov khoom ntxiv uas txhim kho lawv cov thermal thiab lub cev-tsim khoom. Feem ntau cov roj hmab, hluavtaws fibers yog tag nrho cov copolymer. Kawg hloov kho: 2023-12-17 05:12

Paraffins yog qhov feem ntau pib kawm txog carbon chemistry. Qhov yooj yim tshaj plaws cov organic tebchaw, uas qhia meej meej cov ntsiab cai thiab cov yam ntxwv ntawm seem ntawm chemistry. Rau cov pej xeem, txawm li cas los xij, lawv zoo dua lub npe hu ua cov khoom tseem ceeb ntawm cov roj thiab cov nkev. Kawg hloov kho: 2024-01-15 17:01

Ntau yam teeb meem hauv physics tuaj yeem daws tau zoo yog tias txoj cai ntawm kev txuag ntawm ib lossis lwm qhov kom muaj nuj nqis thaum lub sijhawm txiav txim siab lub cev tau paub. Hauv tsab xov xwm no, peb yuav xav txog cov lus nug ntawm dab tsi yog lub zog ntawm lub cev thiab txoj cai ntawm nws txoj kev txuag. Kawg hloov kho: 2023-12-17 05:12

Cov ntsiab lus twg suav nrog hauv cov qauv kev sib raug zoo? Lawv sib cuam tshuam li cas? Yuav ntsuas cov txiaj ntsig ntawm kev sib cuam tshuam li cas thiab lawv puas tuaj yeem suav tias muaj kev vam meej? Sociology ze ze kawm xws li ib tug complex kab mob raws li tib neeg lub neej, vim hais tias cov ntsiab lus thiab hom ntawm nws lub neej muaj feem xyuam rau lub neej yav tom ntej ntawm tiam tshiab. Kawg hloov kho: 2023-12-17 05:12

Txawm tias peb lub ntiaj teb zoo li zoo nyob hauv lub ntiaj teb nyob ib puag ncig nws, nws tsuas yog lub ntiaj teb me me hauv lub hnub ci uas nyob thaj tsam loj. Nyob rau hauv lem, peb lub hnub ci system tsuas yog ib feem ntawm lub loj heev Milky Way galaxy, uas muaj xws li los ntawm 200 mus rau 400 billion hnub qub. Yog li muaj pes tsawg galaxies nyob hauv lub ntiaj teb?. Kawg hloov kho: 2023-12-17 05:12

Yog vim li cas thiab lub siab yog ob lub ntsiab lus uas ntau tus neeg sib piv thiab xav txog cov txheej txheem zoo ib yam. Qhov kev xav no yog qhov tsis ncaj ncees lawm, vim tias cov no yog ob lub ntsiab lus sib txawv uas muaj nyob hauv tib neeg lub siab thoob plaws hauv nws lub neej. Kawg hloov kho: 2023-12-17 05:12

Cov txheej txheem kev tsim kho tshiab yog qhov hloov pauv hloov pauv ntawm lub tswv yim mus rau hauv cov khoom lag luam. Nws tuaj yeem muab faib ua ob theem tseem ceeb: thawj theem (nws yog qhov ntev tshaj plaws) suav nrog kev tshawb fawb thiab kev tsim kho, theem ob yog cov khoom lag luam lub neej voj voog. Kawg hloov kho: 2023-12-17 05:12

Cov lus nug ntawm dab tsi sulfites hauv cov khoom tau nug los ntawm ntau tus neeg. Thiab yog li ntawd, vim kev paub txog qhov no tuaj yeem ua rau tib neeg lub neej ntev. Peb pom sulfites hauv cov zaub mov, tshwj xeeb, hauv cawv thiab txiv hmab txiv ntoo qhuav, tab sis cov tshuaj tua kab mob no tuaj yeem pom hauv ntau lwm yam khoom noj, tshwj xeeb tshaj yog txiv hmab txiv ntoo thiab zaub. Kawg hloov kho: 2023-12-17 05:12

Caprolactam yog cov muaju dawb, yooj yim soluble hauv dej, cawv, ether, benzene. Thaum rhuab nyob rau hauv lub xub ntiag ntawm ib tug me me dej, cawv, amines, organic acids thiab ib co lwm cov tebchaw, caprolactam polymerizes los ua ib tug polyamide resin, los ntawm cov capron fiber yog tau. Cov cuab yeej tseem ceeb ntawm caprolactam yog lub peev xwm los ua polymerize nrog tsim cov khoom muaj txiaj ntsig polymer - polycaproamide. Kawg hloov kho: 2023-12-17 05:12

Roxellan's rhinopithecines, lossis golden snub-nosed liab liab, yog cov tsiaj txawv txawv heev. Lawv muaj plaub hau golden thiab luv upturned qhov ntswg. Tab sis feem ntau ntawm tag nrho cov, lub complexion ntawm cov liab yog txawv: lawv muaj nws xiav! Kab lus yuav piav qhia txog cov yam ntxwv tshwj xeeb, kev ua neej nyob, tus cwj pwm ntawm Roxella rhinopithecines. Cov duab tseem yuav nthuav tawm. Kawg hloov kho: 2023-12-17 05:12

Thaum physics kawm txog cov txheej txheem ntawm kev txav ntawm lub cev nyob rau hauv cov ntaub ntawv uas tsis yog inertial ntawm kev siv, ib tug yuav tsum coj mus rau hauv tus account lub thiaj li hu ua Coriolis acceleration. Nyob rau hauv tsab xov xwm peb yuav muab nws ib tug txhais, peb yuav qhia rau dab tsi yog vim li cas nws tshwm sim thiab qhov twg nws manifests nws tus kheej nyob rau hauv lub ntiaj teb no. Kawg hloov kho: 2023-12-17 05:12

Sodium borohydride: kev piav qhia dav dav, tshuaj thiab lub cev muaj zog. Cov txheej txheem kom tau txais cov khoom hauv kev lag luam. Kev siv ntawm sodium borohydride hauv ntau qhov kev lag luam. Kev tsim cov hlau-boron txheej thiab lawv cov yam ntxwv ua haujlwm. Kawg hloov kho: 2023-12-17 05:12

Ua ntej txiav txim siab tias lub luag haujlwm thiab qhov tseem ceeb ntawm blastula tsim thaum lub sijhawm cell fertilization, nws tsim nyog xav txog lub tswv yim ntawm fertilization. Hauv tsab xov xwm no, peb yuav muab cov ntsiab lus tseeb ntawm qhov blastula yog dab tsi thiab qhov tseem ceeb nws muaj nyob rau hauv tus txheej txheem ntawm fertilization. Kawg hloov kho: 2023-12-17 05:12

Txoj kev kawm thiab kev tshawb fawb hauv USSR tau suav tias yog ib qho zoo tshaj plaws hauv ntiaj teb. Thaum lub sij hawm Soviet Union, cov kev lag luam no tau suav hais tias yog cov thawj coj, vim tias txoj kev loj hlob ntawm kev lag luam ncaj qha nyob ntawm lawv. Qhov tseem ceeb ces yog thaj chaw technical thiab natural sciences. Ua tsaug rau kev tshawb fawb, USSR tau tswj hwm los tsim kom muaj peev xwm tshawb fawb thiab thev naus laus zis, suav nrog cov khoom siv thiab sab ntsuj plig, txhim kho kev tsim khoom, kev kho mob, kev sib raug zoo. Kawg hloov kho: 2023-12-17 05:12

Rau cov kws tshawb fawb niaj hnub no, lub qhov dub yog ib qho tshwm sim tsis meej tshaj plaws hauv peb lub ntiaj teb. Txoj kev kawm ntawm cov khoom no yog qhov nyuaj, nws tsis tuaj yeem sim lawv "los ntawm kev paub". Qhov loj, qhov ntom ntawm cov khoom ntawm lub qhov dub, cov txheej txheem ntawm kev tsim cov khoom no, qhov ntev - tag nrho cov no ua rau muaj kev txaus siab ntawm cov kws tshaj lij, thiab qee zaum - kev xav tsis thoob. Cia peb xav txog lub ncauj lus kom ntxaws ntxiv. Ua ntej, cia peb xam seb lub qhov zoo li cas. Kawg hloov kho: 2023-12-17 05:12