Science 2024, Hlis ntuj nqeg

Eagle Nebula: nrhiav, khoom, khoom txawv txawv

Kab lus no yog hais txog Eagle Nebula, uas nyob rau hauv lub constellation Serpens. Nws qhia txog keeb kwm ntawm kev nrhiav pom ntawm no nebula, nws cov khoom, cov khoom txawv txawv nyob rau thaj tsam ntawm Eagle Nebula. Cov khoom siv yuav muaj txiaj ntsig zoo rau cov neeg siv khoom txaus siab rau qhov chaw, astronomers thiab tsis yog xwb. Kawg hloov kho: 2023-12-17 05:12

Rosing Boris Lvovich, Lavxias teb sab physicist, kws tshawb fawb, engineer-inventor: biography, inventions

Rosing tau tswj kom ua tiav txoj kev npau suav ntev ntawm noob neej kom xa cov duab hla mus deb heev. Ua tsaug rau nws, zaj dab neeg tau dhau los ua qhov tseeb. Dab tsi yog keeb kwm ntawm qhov kev tshawb pom no thiab dab tsi tshwm sim ua rau tus kws tshawb fawb xaiv lub ntsiab lus tshwj xeeb rau kev tshawb fawb?. Kawg hloov kho: 2023-12-17 05:12

Fluvioglacial deposits: piav qhia, txheej txheem tsim, nta

Cov lus geological li fluvioglacial deposits tsis paub txhua leej txhua tus, thiab yog li ntawd nws tsis yog qhov xav tsis thoob tias nws ua rau nyuaj rau kev nkag siab thaum nws tshwm sim hauv cov ntawv nyeem, sib tham lossis yog lub ntsiab lus tseem ceeb ntawm kev sib tham. Nws yog ib qho yooj yim los twv tias cov no yog cov deposits uas sib sau lub sij hawm nyob rau hauv av nyob rau hauv tej yam kev mob. Cov xwm txheej no yog dab tsi?. Kawg hloov kho: 2023-12-17 05:12

Ammonium polyphosphate: piav qhia, khoom, daim ntawv thov

Ammonium polyphosphate: tshuaj formula thiab nws cov qauv, piav qhia ntawm cov khoom, lub cev lub cev. Lub toxicity ntawm lub compound rau cov kab mob nyob. Cov txheej txheem kom tau txais ammonium polyphosphate. Kev siv cov tshuaj no. Kawg hloov kho: 2023-12-17 05:12

Binary kev sib raug zoo thiab lawv cov khoom

Lub tswv yim ntawm "kev sib raug zoo binary" uas muaj nyob hauv kev ua lej qhia ib qho ntawm cov kev sib txuas ntawm cov khoom siv ntau yam, txheej txheem thiab tshwm sim ob qho tib si hauv xwm thiab hauv zej zog, kev xav ntawm nws tus kheej thiab lawv tag nrho. Kawg hloov kho: 2023-12-17 05:12

V.I. Vernadsky: noosphere raws li kev tshawb fawb

Peb txhua tus tau paub ntev, txij li thaum kawm ntawv, tus kws tshawb fawb V.I. Vernadsky. Noosphere, qhov ntawd yog qhov nws lub npe cuam tshuam nrog hauv peb lub cim xeeb. Kawg hloov kho: 2023-12-17 05:12

Tib neeg lub siab ua haujlwm li cas, nws ua haujlwm li cas?

Lub siab yog lub cev nqaij daim tawv. Nws yog ib qho tseem ceeb tshaj plaws nyob rau hauv tib neeg lub cev, vim hais tias ua tsaug rau nws cov hauj lwm, cov ntshav circulates los ntawm lub cev. Txhua tus neeg yuav tsum paub tias lub siab ua haujlwm li cas. Kawg hloov kho: 2023-12-17 05:12

Dwarf ntiaj chaw: Pluto, Eris, Makemake, Haumea

Dwarf ntiaj chaw yeej tsis muaj nyob txog xyoo 2006. Tom qab ntawd lawv tau muab cais rau hauv chav kawm tshiab ntawm qhov chaw khoom. Lub hom phiaj ntawm qhov kev hloov pauv no yog los qhia txog kev sib txuas nruab nrab ntawm cov ntiaj chaw loj thiab ntau lub asteroids los tiv thaiv kev tsis meej pem hauv cov npe thiab cov xwm txheej ntawm lub cev tshiab pom dhau lub orbit ntawm Neptune. Kawg hloov kho: 2024-01-02 17:01

Kev piav qhia ntawm asteroid siv ntawm lub hnub ci system. Main siv asteroids

Ib qho lus piav qhia tag nrho ntawm lub hnub ci yog qhov xav tsis thoob yam tsis tau hais txog cov khoom ntawm txoj siv lub hnub qub. Nws nyob nruab nrab ntawm Jupiter thiab Mars thiab yog ib pawg ntawm cosmic lub cev ntawm ntau yam duab tig ncig lub hnub nyob rau hauv kev tswj tsis tu ncua los ntawm cov pa roj loj. Kawg hloov kho: 2023-12-17 05:12

Auriga yog ib lub hnub qub nyob rau sab qaum teb hemisphere ntawm lub ntuj. Description, brightest hnub qub

Nyob rau lub caij ntuj no, cov hnub qub saum ntuj ci ntsa iab ntau dua li lub caij ntuj sov, thiab yog li ntawd tsis yog cov kws tshawb fawb thiab cov neeg nyiam taug kev lig tuaj yeem txaus siab rau lawv. Thiab muaj ib yam dab tsi los pom! Majestic Orion nce siab saum lub qab ntug, nrog Gemini thiab Taurus, thiab tom ntej no rau lawv teeb rau Auriga - lub hnub qub uas muaj keeb kwm ntev thiab ntau yam khoom nthuav. Qhov ntawd yog qhov tseem ceeb ntawm peb lub siab niaj hnub no. Kawg hloov kho: 2023-12-17 05:12

Constellation Eridanus: yees duab, vim li cas lawv hu nws tias, lus dab neeg

Eridanus yog ib lub hnub qub qub nyob saum ntuj. Nws keeb kwm thiab lub npe yog shrouded nyob rau hauv legends, thiab scientific txaus siab rau nws cov khoom tsis tau ploj mus ntau xyoo. Kawg hloov kho: 2023-12-17 05:12

Fiber optics thiab nws cov ntawv thov

Cov kab lus yog mob siab rau fiber ntau optics. Cov yam ntxwv ntawm cov cuab yeej technology, hom khoom, qhov zoo thiab kev siv tau raug txiav txim siab. Kawg hloov kho: 2023-12-17 05:12

New in science and technology of the 21st century

Tib neeg yog nyob rau hauv lub xeev ntawm kev txhim kho tas li, xav tau kev txhawb nqa kev vam meej, thiab muaj ntau dua txhua xyoo. Yog tias thaum xub thawj qhov kev xav tau yog zaub mov thiab qhov chaw nyab xeeb rau pw, tam sim no cov kev xav tau ntawm tus neeg noj qab haus huv, uas yuav tsum tau txaus siab, tau dhau ntau lub kaum os. Kawg hloov kho: 2023-12-17 05:12

Cov ntaub ntawv tshawb fawb: hom, txoj hauv kev tau txais thiab siv

Nyob hauv kab lus peb yuav tham txog cov ntaub ntawv tshawb fawb. Peb yuav pom tias nws zoo li cas, qhov chaw ntawm nws daim ntawv txais nyiaj yog dab tsi thiab nws tau sau thiab txheeb xyuas li cas. Thiab kuj tau paub txog cov yam ntxwv ntawm kev tshawb nrhiav cov ntaub ntawv tshawb fawb. Kawg hloov kho: 2023-12-17 05:12

Tus qauv ntawm lub atom. Lub zog ntawm cov atom. Protons, neutrons, electrons

Cov qauv hluav taws xob ntawm lub atom muaj lub atomic nucleus, muaj xws li neutrons thiab protons, nrog rau cov hluav taws xob, uas ua rau muaj kev hloov pauv nyob ib ncig ntawm lub nucleus nyob rau hauv tas li orbits, zoo li cov ntiaj chaw nyob ib ncig ntawm lawv cov hnub qub. Cov qauv ntawm lub atom yog tuav ua ke los ntawm electromagnetic quab yuam, ib qho ntawm plaub lub ntsiab zog ntawm lub ntug. Kawg hloov kho: 2023-12-17 05:12

Yuav ua li cas yog hlau (steel) thiab nws yog dab tsi?

Hlau thiab hlau raws li nws tau siv txhua qhov chaw hauv kev lag luam thiab lub neej txhua hnub. Txawm li cas los xij, ob peb tus neeg paub tias cov hlau yog ua los ntawm cov hlau, los yog zoo li cas nws yog mined thiab hloov mus rau hauv cov hlau alloy. Kawg hloov kho: 2023-12-17 05:12

Luminous flux - yog dab tsi?

Lub zog ntawm pom lub teeb hluav taws xob, uas kwv yees los ntawm kev hnov ntawm tib neeg lub qhov muag thiab ntsuas hauv lumens, yog lub luminous flux. Qhov no yog lub zog uas txhua qhov teeb pom kev zoo muab. Kawg hloov kho: 2023-12-17 05:12

Atomic moos: keeb kwm thiab niaj hnub

Nyob rau xyoo 1967, hauv International SI system, qeb ntawm lub sijhawm tau txiav txim siab los ntawm kev ntsuas hnub qub - lawv tau hloov los ntawm tus qauv cesium zaus. Nws yog nws uas tau txais lub npe nrov tam sim no - atomic moos. Lub sijhawm tiag tiag uas lawv tso cai rau koj los txiav txim siab muaj qhov tsis txaus ntseeg ntawm ib thib ob hauv peb lab xyoo, uas tso cai rau lawv siv raws li lub sijhawm tus qauv hauv txhua lub ces kaum ntawm lub ntiaj teb. Kawg hloov kho: 2023-12-17 05:12

European Space Agency: keeb kwm ntawm kev tsim, kev ua haujlwm thiab kev ua ub no

Lub Chaw Haujlwm European Chaw Haujlwm tau tsim nyob rau xyoo 1975. Txog hnub no, nws suav nrog 22 lub tebchaws. Lub luag haujlwm tseem ceeb ntawm lub koom haum yog kev koom tes ntawm nws cov tswv cuab hauv kev tshawb nrhiav thiab kev tshawb fawb ntawm qhov chaw sab nrauv rau nws txoj kev thaj yeeb nyab xeeb. Kawg hloov kho: 2023-12-17 05:12

Bevel iav, lawv daim ntawv thov thiab tsim khoom

Ib yam ntawm cov iav bevel yog lub peev xwm los faib kev sib hloov mus rau lub ncej nyob ntawm txoj cai kaum rau lub qag tsav. Kawg hloov kho: 2023-12-17 05:12

Russian Humanitarian Science Foundation (RGHF): piav qhia, keeb kwm, tus thawj coj thiab cov haujlwm

Lub Russian Humanitarian Science Foundation (RHF) tau tsim los ua ib feem ntawm lub xeev txoj haujlwm rau kev tiv thaiv tib neeg. Lub hom phiaj ntawm lub koom haum yog kev txhim kho, nce kev paub, kev tshawb fawb thiab kev tshawb pom. Lub luag haujlwm tseem ceeb ntawm lub hauv paus yog kev txhawb siab ntawm kev coj noj coj ua thiab kev tshaj tawm hauv zej zog. Kev ua haujlwm ntawm lub koom haum yuav tsum txhawb nqa tib neeg txoj kev txaus siab rau tib neeg. Kawg hloov kho: 2023-12-17 05:12

Cov khoom siv hluav taws xob. Kev piav qhia

Roj thiab hluav taws xob cov peev txheej yog suav tias yog lub hauv paus ntawm kev lag luam niaj hnub no hauv txhua lub tebchaws. Nyob rau tib lub sij hawm, qhov kev lag luam no yog lub ntsiab polluter ntawm lub ntuj complex. Kawg hloov kho: 2023-12-17 05:12

Oxidation ntawm cov hlau hauv tsev

Kab lus no yuav tsom mus rau kev txheeb xyuas qhov tshwm sim ntawm cov hlau oxidation. Ntawm no peb yuav xav txog ib lub tswv yim dav dav ntawm qhov tshwm sim no, tau paub txog qee yam thiab kawm lawv siv cov piv txwv ntawm cov hlau. Tus nyeem ntawv kuj yuav kawm paub ua cov txheej txheem zoo sib xws ntawm lawv tus kheej. Kawg hloov kho: 2023-12-17 05:12

Cov nqaij fibers. Hom nqaij fibers

Nyias cov nqaij fibers tsim txhua cov leeg pob txha. Lawv tuab tsuas yog li 0.05-0.11 hli, thiab qhov ntev ncav cuag 15 cm. Cov nqaij fibers ntawm cov leeg nqaij striated yog sau nyob rau hauv bundles, uas muaj xws li 10-50 fibers txhua. Cov pob khoom no nyob ib puag ncig los ntawm cov ntaub so ntswg (fascia). Kawg hloov kho: 2023-12-17 05:12

Thermal expansion of solids and liquids

Nws paub tias nyob rau hauv qhov cuam tshuam ntawm cov khoom cua sov ua kom lawv txoj kev chaotic. Yog tias koj rhaub cov roj, ces cov molecules uas ua rau nws yuav tsuas tawg ntawm ib leeg. Cov kua rhuab yuav thawj zaug hauv ntim, thiab tom qab ntawd pib evaporate. Yuav ua li cas rau cov khib nyiab? Tsis yog txhua tus tuaj yeem hloov lawv lub xeev ntawm kev sib sau. Kawg hloov kho: 2023-12-17 05:12

Cov hlau nplaum tas mus li thiab nws ntau yam

Cov hlau nplaum tas mus li yog tsim los siv los ua qhov chaw sib nqus tas li hauv hluav taws xob, tsis siv neeg, xov tooj cua engineering thiab lwm yam khoom siv. Ntxiv mus, nws tso cai rau koj kom txo tau lawv qhov ntev thiab qhov hnyav, thaum nce kev ywj pheej thiab kev ntseeg tau. Kawg hloov kho: 2023-12-17 05:12

Kev ua haujlwm ntawm lub tshuab hluav taws xob yog dab tsi? Yuav ua li cas txhawm rau txhim kho kev ua haujlwm ntawm lub tshuab hluav taws xob?

Cov tshuab hluav taws xob tau tshwm sim ntev dhau los, tab sis kev txaus siab rau lawv tau tshwm sim thaum lawv pib sawv cev rau lwm txoj hauv kev sib xyaw ua ke. Ntawm qhov kev txaus siab yog cov lus nug ntawm kev ua haujlwm ntawm lub tshuab hluav taws xob, uas yog ib qho ntawm nws cov yam ntxwv tseem ceeb. Kawg hloov kho: 2023-12-17 05:12

High txawj ntse - kos npe. IQ xeem. Kev txawj ntse yog dab tsi thiab yuav txhim kho nws li cas

Koj puas tau xav paub vim li cas qee tus neeg tuaj yeem nrhiav kev daws teeb meem sai sai hauv txhua qhov xwm txheej, thaum lwm tus poob thaum muaj teeb meem tshwm sim? Nws tsis yog hais txog tus cwj pwm zoo xwb. Qhov tseem ceeb tshaj plaws uas txawv peb ntawm ib leeg yog lub peev xwm kev txawj ntse uas ib tus neeg nyias muaj nyias. Kawg hloov kho: 2023-12-17 05:12

Siberian xaiv cov txiv lws suav - nta thiab qhov zoo. Qhov zoo tshaj plaws ntau yam ntawm Siberian txiv lws suav

Siberian xaiv cov txiv lws suav tuaj yeem txaus siab rau cov neeg muaj lub hom phiaj xwb. Koj muaj peev xwm txawm hais tias altruists, vim hais tias loj hlob zaub nyob rau hauv tej yam kev mob tsis haum rau "nyob" nyob rau hauv Siberia yog zoo li npau taws. Yuav ua li cas tshwm sim - Vajtswv tsuas paub. Kawg hloov kho: 2023-12-17 05:12

Iron oxide thiab nws cov khoom tsim los ntawm cov khoom siv ntxhia

Iron oxide yog ib qho kev sib xyaw ua ke uas ua haujlwm ua cov khoom siv ntxhia rau kev tsim cov hlau thiab hlau. Kawg hloov kho: 2023-12-17 05:12

Sab qaum teb hemisphere thiab nws cov hnub qub hnub qub

Hnub qub thiab ntiaj chaw, galaxies thiab nebulae - saib lub ntuj hmo ntuj rau teev koj tuaj yeem txaus siab rau nws cov khoom muaj nqis. Txawm tias kev paub yooj yim ntawm cov hnub qub thiab muaj peev xwm nrhiav tau lawv nyob saum ntuj yog ib qho txuj ci tseem ceeb heev. Kab lus no piav qhia luv luv txog cov hnub qub ntawm lub hnub qub ntawm sab qaum teb hemisphere, thiab tseem muab cov lus qhia ua kom pom lawv nyob saum ntuj. Kawg hloov kho: 2023-12-17 05:12

Kev tsis saib xyuas yog li cas? Lub ntsiab lus, synonyms thiab txhais lus

Lub neej nyuaj. Yog li ntawd, ib tug neeg willy-nilly yuav tsum xaiv. Yog lawm, txhua qhov kev xaiv tau teeb tsa raws li hauv qab no: tus neeg xav, txheeb xyuas qhov tseem ceeb thiab qhov tsis yog. Tom qab ntawd nws teev qhov tseem ceeb, thiab, ntawm chav kawm, ib yam dab tsi yuav tsum tau txi, uas yog, tsis saib xyuas, qhov no yog qhov ntuj tsim. Niaj hnub no peb yuav xav txog lub ntsiab lus ntawm cov lus qhia kawg, nws cov lus sib dhos thiab tham kom ntxaws txog ntau lub ntsiab lus. Kawg hloov kho: 2023-12-17 05:12

Svetlana Savitskaya: biography, duab

Svetlana Savitskaya yog tus poj niam thib ob cosmonaut tom qab Valentina Tereshkova, tseem paub txog kev ua haujlwm taug kev. Kawg hloov kho: 2023-12-17 05:12

Hom pab pawg: kev faib tawm, kev txhais thiab cov ntsiab lus

Peb ntsib kev sib koom ua ke txhua hnub. Los ntawm kev ua haujlwm, peb sib txuas lus nrog peb cov neeg ua haujlwm, rov qab los tsev peb ntsib nrog tsev neeg. Thiab txhua pab pawg neeg belongs rau ib tug los yog lwm hom ntawm collective. Cov kev tshawb fawb niaj hnub no qhia txog ntau yam ntawm cov zej zog zoo li no, uas peb yuav tham hauv kab lus no. Peb yuav sim nkag siab txog lawv txoj haujlwm thiab kev ua haujlwm. Kawg hloov kho: 2023-12-17 05:12

Hygroscopicity - yog dab tsi? Hygroscopicity ntawm cov ntaub ntawv

Dab tsi yog hygroscopicity ntawm cov ntaub ntawv. Hygroscopicity - yog dab tsi? Qhov no yog kev nplij siab. Hydrophilic thiab hydrophobic fibers, hygroscopicity ntawm cov ntaub sib txawv: wool, silk, viscose, linen, paj rwb. Feem pua ntawm cov dej noo nqus ntawm ntau hom ntaub. Kawg hloov kho: 2023-12-17 05:12

Lub qhov dub nyob ze tshaj plaws rau lub ntiaj teb

Dub qhov yog qhov chaw loj loj uas nqos tag nrho cov ntiaj chaw. Lawv qhov hnyav thiab qhov ntev yog qhov loj heev uas tus neeg tsuas yog tsis tuaj yeem xav txog cov nplai no. Tshawb nrhiav seb qhov twg ntawm txhua qhov dub nyob ze koj tshaj plaws thiab nws txaus ntshai npaum li cas rau koj lub neej. Kawg hloov kho: 2023-12-17 05:12

Phosphoric acid, nws lub cev thiab tshuaj lom neeg thiab kev siv

Phosphoric acid tau paub ntev los lawm thiab tau tshawb pom los ntawm kev sib tsoo thaum muaj kev sim tshuaj. Txawm li cas los xij, txawm tias niaj hnub no, vim nws lub cev thiab tshuaj lom neeg thiab kev tsim khoom pheej yig, nws tau siv dav hauv ntau yam lag luam xws li kev ua liaj ua teb, kho hniav, molecular biology, kev lag luam zaub mov, thiab lwm yam. Kawg hloov kho: 2024-01-02 17:01

Cov cuab yeej rau tshuaj tshawb nrhiav thiab tswj

Cov cuab yeej hluav taws xob thiab tshuaj lom neeg tshawb nrhiav thiab tswj tau siv los txiav txim siab kwv yees qib siab ntawm cov tshuaj lom hauv huab cua. Cov cuab yeej siv hauv tsev thiab hauv qhov chaw qhib. Nrog lawv cov kev pab, qhov concentration ntawm cov khoom nyob rau hauv cov zaub mov, dej, fodder, nyob rau hauv sib txawv qhov chaw yog txiav txim. Kawg hloov kho: 2023-12-17 05:12

Cov khoom siv hluav taws xob. cov khoom siv hluav taws xob. hluav taws xob cuam tshuam

Cov kab lus no mob siab rau cov khoom siv hluav taws xob. Kuj tseem suav tias yog qhov cuam tshuam ntawm hluav taws xob thiab raug hluav taws xob, chaw cia khoom rau cov khoom siv, thiab lwm yam. Kawg hloov kho: 2023-12-17 05:12

Meteoric hlau: muaj pes tsawg leeg thiab keeb kwm

Meteoric hlau yog dab tsi? Nws tshwm sim li cas hauv ntiaj teb? Koj yuav pom cov lus teb rau cov lus nug no thiab lwm yam hauv kab lus. Meteoritic hlau yog cov hlau pom nyob rau hauv meteors thiab muaj ob peb theem ntxhia: taenite thiab kamacite. Nws ua rau feem ntau ntawm cov hlau meteorites, tab sis kuj pom nyob rau hauv lwm hom. Xav txog cov hlau meteoric hauv qab no. Kawg hloov kho: 2023-12-17 05:12