2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib lub gravitational nthwv dej yog an pom (tsis tau nrawm heev) ripple hauv qhov chaw. Gravitational nthwv dej taug kev ntawm lub teeb nrawm (186, 000 mais ib ob). Cov nthwv dej no nyem thiab ncab txhua yam hauv lawv txoj kev thaum lawv hla dhau. Lub gravitational nthwv dej yog qhov pom tsis tau (tseem ceev heev) ripple hauv qhov chaw.
Dab tsi yog qhov gravitational nthwv dej?
“Gravitational nthwv dej yog ripples hauv lub sijhawm. Thaum cov khoom txav mus, qhov curvature ntawm spacetime hloov thiab cov kev hloov no txav tawm sab nraud (xws li ripples ntawm lub pas dej) raws li gravitational nthwv dej. Lub gravitational nthwv dej yog qhov ncab thiab squash ntawm qhov chaw thiab yog li tuaj yeem pom los ntawm kev ntsuas qhov hloov ntawm qhov ntev ntawm ob yam khoom."
Dab tsi yog gravitational nthwv dej rau menyuam yaus?
Ntshai Ntshai yog ripples nyob rau hauv lub sijhawm uas yog tsim los ntawm acceleration lossis deceleration ntawm cov khoom loj hauv qhov chaw. Qhov no txhais tau tias, lawv yog cov ripples uas nqa lub zog gravitational deb ntawm qhov chaw ntawm kev cuam tshuam ntawm ob yam khoom hauv qhov chaw. Txhua yam khoom cosmic loj tuaj yeem tsim cov no ntawm acceleration.
LIGO txhais li cas?
LIGO stands rau " Laser Interferometer Gravitational-wave Observatory". Nws yog lub ntiaj teb qhov loj tshaj plaws gravitational yoj observatory thiab ib tug marvel ntawm precision engineering.
Yuav ua li cas gravitational nthwv dej propagate?
Ntsig Nkoj yog, hauv lawv qhov kev nkag siab yooj yim tshaj plaws, ripples hauv spacetime. … Yog hais tias lub hnub qub tawg raws li ib tug supernova,gravitational nthwv dej nqa lub zog tawm ntawm lub detonation ntawm qhov ceev ntawm lub teeb. Yog hais tias ob lub qhov dub sib tsoo, lawv yuav ua rau cov ripples nyob rau hauv lub sij hawm mus propagate zoo li ripples hla lub pas dej.
Pom zoo:
Puas yog einstein ntseeg hauv cov nthwv dej gravitational?
Einstein sai sai rau ntawm cov qauv tsim nyog, tab sis ob xyoos tom qab nws tsis lees paub qhov tseeb ntawm lub cev ntawm cov nthwv dej gravitational, thiab nws tseem tsis ntseeg txog lawv mus tas nws lub neej. … Cov nthwv dej nqus yog tsim los ntawm cov xwm txheej hnyav xws li kev sib tsoo lub qhov dub lossis cov hnub qub neutron.
Yuav ua li cas lub zog gravitational puas yuav tsis zoo?
Lub zog gravitational muaj peev xwm tuaj yeem txawm tias qhov tsis zoo yog tias qhov khoom yuav dhau mus qis dua tus lej xoom. Qhov no tsis muaj teeb meem, txawm li cas los xij; peb tsuas yog yuav tsum nco ntsoov tias tib lub xoom point yog siv tas li hauv kev suav.
Qhov twg yog qhov gravitational lo ntsiab muag?
Hom kev sib nqus yooj yim tshaj plaws tshwm sim thaum muaj ib qho teeb meem ntawm qhov chaw, xws li cov tub ntxhais ntom ntom ntawm lub galaxy. Lub teeb ntawm lub galaxy nyob deb yog redirected nyob ib ncig ntawm lub core no, feem ntau tsim ntau yam duab ntawm lub keeb kwm yav dhau galaxy.
Leej twg g hu ua universal gravitational tas li?
Txoj cai ntawm gravitation tau muab los ntawm Sir Isaac Newton uas yog tus kws lej Askiv. Txoj cai lij choj hais tias ob lub cev loj heev nyiam ib leeg thaum khaws cia ntawm qhov deb ntawm lub zog hu ua lub zog gravitational. Vim li cas G thiaj hu ua universal gravitational tas li?
Thaum lub peev xwm gravitational yog xoom?
Yog tias thaj teb yog vim muaj qhov khoom sib cais loj heev (lossis ib yam khoom ntawm qhov loj me), ces nws yog ib qho yooj yim los txhais lub peev xwm los ua xoom ntawm qhov kev ncua deb ntawm qhov khoom; lub peev xwm tsis zoo nyob txhua qhov chaw vim tias lub zog gravitational yeej ib txwm nyiam.
