Zoo li txhua yam khoom nrog huab hwm coj, cov ntiaj chaw muaj lub siab nyiam tiv thaiv kev hloov pauv rau lawv cov kev taw qhia thiab kev txav ceev. Qhov kev nyiam los tiv thaiv kev hloov pauv yog hu ua inertia, thiab nws cov kev cuam tshuam nrog lub gravitational attraction ntawm lub hnub yog dab tsi ua rau cov ntiaj chaw ntawm lub hnub ci system, nrog rau lub ntiaj teb, nyob rau hauv ruaj khov orbits
Lub Laboratory tau tsim nyob rau hauv 1943 raws li qhov chaw Y ntawm Manhattan Project rau ib lub hom phiaj: tsim thiab tsim lub foob pob atomic. Nws tsuas siv 27 lub hlis xwb. Thaum Lub Xya Hli 16, 1945, lub ntiaj teb thawj lub foob pob tawg tau tawg 200 mais sab qab teb ntawm Los Alamos ntawm Trinity Site ntawm Alamogordo Bombing Range
Microscopes tau zoo tsuas yog cov hlab ntim nrog cov iav, nkhaus daim iav uas khoov (los yog thim rov qab) lightrayspassing los ntawm lawv. Qhov yooj yim tshaj plaws microscope ntawm tag nrho cov isamagnifying iav ua los ntawm ib tug convex lens, uas feem ntau magnifies txog li 5-10 zaug
Input ua hauj lwm yog ua hauj lwm ua nyob rau hauv ib tug machineas lub input quab yuam ua los ntawm lub input nrug.Qhov no yog nyob rau hauv sib piv rau cov zis ua hauj lwm uas yog ib tug quab yuam uas yog siv los ntawm lub cev los yog system rau lwm yam. Output work yog qhov ua haujlwm los ntawm lub tshuab ua haujlwm raws li cov zis tawm dag zog los ntawm qhov tso tawm qhov deb
Yog tias lub zog ntawm ib qho khoom sib npaug, lub zog ntawm lub zog yog xoom. Yog hais tias cov rog tsis sib npaug, cov teebmeem yuav tsis thim ib leeg. Txhua lub sij hawm lub zog ua rau ntawm ib qho khoom tsis sib npaug, lub zog ntawm lub zog tsis yog xoom, thiab kev txav ntawm cov khoom hloov
Plum qauv. Ib lub computer qauv siv los xam cov pa paug paug nyob rau ntawm qhov chaw receptor. Tus qauv xav tias cov pa phem plua plav yog nqa los ntawm nws qhov chaw emission los ntawm lub ntsiab lus cua thiab dispersed horizontally thiab vertically los ntawm atmospheric stability yam ntxwv
Diffraction yog tshwm sim los ntawm ib tug nthwv dej ntawm lub teeb raug hloov los ntawm ib tug diffraction. Qhov kev hloov no yuav ua rau lub nthwv dej muaj kev cuam tshuam nrog nws tus kheej.Kev cuam tshuam tuaj yeem ua rau muaj kev tsim lossis kev puas tsuaj. Cov qauv ntawm kev cuam tshuam no vam khom qhov loj ntawm qhov txawv txav thiab qhov loj ntawm yoj
Txhawm rau hloov 4/5 mus rau ib feem pua, teeb tsa 4/5 = x% / 100. Feem ntau yuav crossmultiply. Muab cov zauv ntawm feem ntawm sab laug los ntawm tus lej ntawm feem ntawm sab xis: 4 * 100 = 400
Cov tsos mob: luv stature
Yog hais tias ib kab yog sau li Ax + By = C, lawv-intercept yog sib npaug rau C / B. Yog hais tias txhua kab hauv qhov system muaj tib txoj kab nqes tab sis sib txawv y-intercept, cov kab sib npaug thiab tsis muaj kev daws teeb meem. Yog hais tias txhua kab nyob rau hauv lub system muaj tib txoj kab nqes thiab tib y-intercept, cov kab yog coincident
Cov qauv yog cov ntaub ntawv uas muaj qhov paub meej meej ntawm cov khoom siv rau hauv kev tshuaj xyuas kom muaj nuj nqis. Ib tus qauv muab cov ntaub ntawv siv uas tuaj yeem siv los txiav txim siab tsis paub ntau ntxiv lossis los ntsuas cov ntsuas ntsuas ntsuas
Muaj 10 milliliters hauv ib Centiliter
Yuav ua li cas algebra yog siv nyob rau hauv ua noj ua haus Feem ntau ntau yam muaj dials uas tso saib qhov kub ntawm qhov cub. Hauv North America, feem ntau ntawm cov ntsuas kub no tau sau ua Fahrenheit. Peb kuj siv kev hloov pauv thaum peb ci los yog ua noj kom hloov qhov ntau thiab tsawg
Yooj yim rau siv cov kauj ruam: Muab tso rau hauv qab ntawm pipette rau hauv cov kua koj xav hloov. Kos cov kua siv lub qhov muag teev (squeezing lub teeb) los yog pipette twj tso kua mis (rolling lub pipette twj log). Tshem cov pipette los ntawm cov kua thiab txav pipette mus rau qhov xav tau koob tshuaj
Cov Ntsiab Lus Tseem Ceeb Muaj ob yam xwm txheej uas yuav tsum tau ua kom tau raws li qhov khoom kom muaj kev sib npaug. Thawj qhov xwm txheej yog tias lub zog ntawm cov khoom yuav tsum yog xoom rau qhov khoom sib npaug. Yog hais tias lub zog net yog xoom, ces net force raws li ib qho kev taw qhia yog xoom
1 Inorganic ntsev hydrates li PCMs. Ntsev hydrates suav nrog ib pawg tseem ceeb ntawm PCMs. Inorganic ntsev hydrate (hydrated ntsev los yog hydrate) yog ib tug ionic compound nyob rau hauv uas ib tug xov tooj ntawm cov dej molecules yog attracted los ntawm cov ions thiab yog li ntawd nyob rau hauv nws siv lead ua lattice. Cov mis mos ntawm hydrated ntsev yog MxNy
Cov teeb meem ib puag ncig hauv Tebchaws Meskas suav nrog kev hloov pauv huab cua, lub zog, kev txuag tsiaj, tsiaj txhu, deforestation, mining, nuclear xwm txheej, tshuaj tua kab, muaj kuab paug, pov tseg thiab muaj neeg coob coob. Txawm hais tias siv ntau pua qhov kev ntsuas, tus nqi ntawm cov teeb meem ib puag ncig yog nce sai heev es tsis txhob txo
Kev kuaj mob tau lees paub los ntawm kev tshawb pom ntawm qhov kev tshem tawm ntawm Wolf-Hirschhorn syndrome tseem ceeb cheeb tsam (WHSCR) los ntawm cytogenetic (chromosome) tsom xam. Kev soj ntsuam cytogenetic ib txwm pom tsawg dua ib nrab ntawm kev tshem tawm uas ua rau WHS
Loj tshaj 400 km Lub Cev Radius # (km) Hnub Ci 696342 ± 65 1 Jupiter 69911 ± 6 2 Saturn 58232 ± 6 (w/o rings) 3
Muab qhov no ua ke nrog cov kev hloov pauv, thiab koj tau txais tias txoj kab nqes ntawm txoj kab nruab nrab yog qhov 'tsis zoo reciprocal' ntawm txoj kab nqes ntawm thawj kab - thiab ob kab nrog txoj kab nqes hav uas tsis zoo reciprocals ntawm ib leeg yog perpendicular rau ib leeg
Graden Cog Depth Koj yuav tau yuav koj cov calla lilies li dormant rhizomes, uas zoo li qhov muag teev. Cog calla lily rhizomes 4 mus rau 6 ntiv sib sib zog nqus hauv lub txaj npaj vaj nyob rau lub caij nplooj ntoo hlav. Cov rhizomes loj dua yuav tsum tau cog kom tob txaus kom sab saum toj ntawm rhizome yog 2 ntiv hauv qab ntawm cov av saum npoo
Lub voj voog. npe. ib puag ncig cov duab uas muaj cov kab nkhaus uas ua tiav ib qho chaw thiab yog tib qhov deb ntawm qhov chaw ntawm txhua qhov chaw. Ib yam dab tsi hauv cov duab ntawm lub voj voog yog ncig
Lub xub ntiag ntawm HLA-B27 yog txuam nrog qee yam kab mob autoimmune thiab tiv thaiv kab mob, suav nrog: ankylosing spondylitis, uas ua rau mob pob txha hauv koj tus txha nraub qaum. reactive arthritis, uas ua rau o ntawm koj pob qij txha, urethra, thiab ob lub qhov muag, thiab tej zaum qhov txhab ntawm koj daim tawv nqaij
Tus qauv ntawm DNA ob lub helix qhia dab tsi txog DNA cov khoom? DNA tuaj yeem rov ua dua los ntawm kev ua cov ntawv luam ntawm txhua txoj hlua. DNA khaws cov ntaub ntawv ntawm caj ces nyob rau hauv ib theem ntawm nws cov hauv paus. DNA tuaj yeem hloov pauv
50 av qeeg
Discovery ntawm Neutron. Nws yog qhov zoo tshaj plaws uas cov neutron tsis tau tshawb pom txog thaum xyoo 1932 thaum James Chadwick siv cov ntaub ntawv tawg los mus xam qhov loj ntawm qhov nruab nrab no. Qhov kev soj ntsuam no ua raws li qhov kev sib tsoo ntawm lub taub hau elastic qhov twg ib qho me me tawm tsam ib qho loj dua
Schrödinger's miv yog ib qho kev sim xav, qee zaum piav raws li kev tsis sib haum xeeb, tsim los ntawm Austrian physicist Erwin Schrödinger hauv xyoo 1935, txawm tias lub tswv yim los ntawm Albert Einstein. Nws qhia txog qhov nws pom yog qhov teeb meem ntawm Copenhagen txhais lus ntawm quantum mechanics siv rau cov khoom siv niaj hnub
Magnesium chloride yog lub npe rau cov tshuaj compound nrog rau cov mis MgCl2 thiab nws ntau hydratesMgCl2 (H2O) x. Cov ntsev no yog cov ionic halides, uas yog soluble hauv dej. Cov hydratedmagnesium chloride tuaj yeem muab rho tawm los ntawm brine lossis dej hiav txwv
Atoms muaj peb yam tseem ceeb: protons, electrons, thiab neutrons. Lub nucleus (center) ntawm lub atom muaj cov protons (zoo them) thiab cov neutrons (tsis muaj nqi). Atoms muaj cov khoom sib txawv raws li kev teeb tsa thiab tus lej ntawm lawv cov ntsiab lus
Nuclear lwj. Radioactive decay yog cov txheej txheem ntawm ntau yam txheej txheem uas tsis ruaj tsis khov atomic nucleusspontaneously emits subatomic hais. Kev lwj yog hais tias muaj tshwm sim nyob rau hauv niam txiv nucleus thiab tsim ib tug ntxhais nucleus.Qhov feem ntau decay hom yog alpha, beta, thiab gammadecay
1, ci ntsa iab, ci ntsa iab, effulgence, flash, glare, gleam, ci ntsa iab, ci ntsa iab, ci ntsa iab, incandescence, lambency, luminescence, luminosity, lustre, phosphorescence, radiance, ray, refulgence, scintillation, ci, sparkle
Lithosphere yog tsim los ntawm lub ntiaj teb txheej txheej sab nrauv, lub crust, thiab sab saum toj ntawm lub mantle. Nyob rau hauv kev sib piv, lub asthenosphere yog lub sab sauv ntawm lub ntiaj teb mantle (uas kuj yog nruab nrab txheej ntawm lub ntiaj teb). Lub asthenosphere yog ntau ntom thiab khov nyob rau hauv kev sib piv rau lithosphere
Ib tus kws paub txog thaj tsam li cas thiaj li xaus tias ob lossis ntau qhov tshwm sim yog 'spatially txuam', txhais tau tias lawv muaj qee yam ua rau thiab cuam tshuam rau kev sib raug zoo. Ib tus kws qhia thaj chaw xaus lus tias ob lossis ntau qhov tshwm sim yog 'spatial txuam' los ntawm kev soj ntsuam cov xwm txheej uas pom zoo sib xws spatial distributions
Cov kua dej ntawm lub ntiaj teb sab hauv yog hu ua cov tub ntxhais sab nraud
Lub Sijhawm mus los ntawm ib lub ncov mus rau tom ntej (los yog los ntawm ib qho taw tes mus rau qhov sib piv tom ntej): Lub Amplitude yog qhov siab ntawm kab nruab nrab mus rau lub ncov (los yog mus rau lub trough). Tam sim no peb tuaj yeem pom: amplitude yog A = 3. lub sij hawm yog 2π / 100 = 0.02 π theem hloov yog C = 0.01 (mus rau sab laug) ntsug hloov yog D = 0
Txiav cov ntoo cedar cov hauv paus ntiav los ntawm kev khawb ib qhov trench 18 mus rau 24 ntiv tob ib ncig ntawm tsob ntoo. Lub trench yuav tsum yog kwv yees li 1 ko taw dav dua li cov ceg hauv qab. Ntxig lub duav hauv qab tsob ntoo ntawm 45-degree lub kaum sab xis, nqa kom nthuav tawm cov hauv paus hniav. Txiav lub feeder keeb kwm thiab taproot
AC zaus suav tus naj npawb ntawm kab rov tav faib los ntawm ib qho taw tes siab mus rau tom ntej (piv txwv li ncov mus rau lub ncov) ntawm koj lub teeb liab oscillating. Tom ntej no koj yuav muab tus naj npawb ntawm kab rov tav faib los ntawm lub sij hawm / faib kom pom lub teeb liab lub sij hawm. Koj tuaj yeem suav cov teeb liab zaus nrog qhov sib npaug no: zaus = 1 / lub sijhawm
Yuav Ua Li Cas Thiaj Ua Ib Lub Ntsiab Lus? Xaiv koj lub ntsiab lus. Raws li tus kws tshawb fawb, muaj ntau yam hauv ntiaj teb koj tuaj yeem xaiv los tshawb xyuas. Ua koj cov lus nug tshawb fawb. Ua kev tshuaj xyuas cov ntaub ntawv. Xaiv koj cov kev hloov pauv. Xaiv koj txoj kev sib raug zoo. Tsim lub tswvyim. Xaiv koj lub ntsiab lus. Ua koj cov lus nug tshawb fawb
Felsic pob zeb, siab tshaj cov ntsiab lus ntawm silicon, nrog predominance ntawm quartz, alkali feldspar thiab / los yog feldspathoids: felsic minerals; Cov pob zeb no (piv txwv li, granite, rhyolite) feem ntau yog xim xim, thiab muaj qhov ntom ntom
Nyob rau hauv kis tau tus mob electron microscope (TEM), lub hauv paus ntawm illumination yog ib tug beam ntawm electrons ntawm luv luv wavelength, tawm los ntawm ib tug tungsten filament nyob rau sab saum toj ntawm ib tug cylindrical kem ntawm txog 2 m siab. Tag nrho cov kab ke kho qhov muag ntawm lub tshuab microscope yog kaw hauv lub tshuab nqus tsev