Video: Puas yog gravitational tsis muaj pov thawj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv paus ntsiab lus, gravitational nthwv dej tuaj yeem muaj atany zaus. Txawm li cas los xij, tsawg zaus nthwv dej yuav tsis muaj peev xwm ntes tau thiab tsis muaj qhov chaw ntseeg tau los kuaj pom nthwv dej ntawm ntau zaus.
Nyob rau hauv no, yuav ua li cas gravitational nthwv dej nrhiav tau?
Supersensitive detectors Siv laser beams, cov kws tshawb fawb muaj kuaj pom thephysical distortions tshwm sim los ntawm kev dhau gravitational nthwv dej . Tab sis yog tias ib qho ntawm cov kab teeb tuaj txog lig me ntsis, lub teeb liab raug tsim, uas tuaj yeem ua pov thawj ntawm ib qho gravitational yoj . Gravitational nthwv dej , tom qab tag nrho, distort cov ntaub ntawm qhov chaw-lub sij hawm.
Ib yam li ntawd, thaum twg LIGO tau ntes cov nthwv dej gravitational? Kev tsim kho ntawm LIGO cov tus thawj gravitationalwave detectors (dubbed Initial LIGO los yog iLIGO) tau ua tiav xyoo 1999. Thawj qhov kev tshawb nrhiav gravitational nthwv dej pib xyoo 2002 thiab xaus rau xyoo 2010 thaum lub sijhawm no gravitational nthwv dej tau kuaj pom.
Ib yam li ntawd, hom nthwv dej twg yog gravitational yoj?
A gravitational yoj yog qhov pom tsis tau (yetincredibly ceev) ripple hauv qhov chaw. Gravitational nthwv dej taug kev ceev ntawm lub teeb (186,000 mais ib ob). Cov no nthwv dej nyem thiab ncab txhua yam hauv lawv txoj kev thaum lawv hla. A gravitational yoj yog qhov pom tsis tau (yetincredibly ceev) ripple hauv qhov chaw.
Peb puas tuaj yeem tsim cov nthwv dej gravitational?
Gravitational nthwv dej yog kev cuam tshuam nyob rau hauv curvature ntawm spacetime, generated los ntawm accelerated masses, uas propagate li nthwv dej sab nraud los ntawm lawv qhov chaw ntawm qhov ceev ntawm lub teeb. Tom qab thawj zaug tshaj tawm cov cuab yeej LIGO tau kuaj pom ob qho ntxiv, thiab ib muaj peev xwm, gravitationalwave xwm txheej.
Pom zoo:
Lub cev puas tuaj yeem muaj lub zog tsis muaj zog muab qhov laj thawj?
Teb thiab piav qhia: Lub cev tsis tuaj yeem muaj lub zog tsis muaj zog. Qhov no yog vim hais tias tsuas yog txav cov khoom havemomentum, thiab ib yam khoom nyob rau hauv motion ib txwm haskinetic
Koj ua pov thawj li cas cov kab yog sib npaug hauv cov ntawv pov thawj?
Thawj yog yog tias cov ces kaum sib thooj, cov ces kaum uas nyob rau tib lub ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces cov kab sib npaug. Qhov thib ob yog yog tias qhov sib txawv sab hauv lub kaum sab xis, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab sab hauv cov kab sib npaug, sib npaug, ces cov kab sib npaug
Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov xim thiab tsim cov npuas. Lub tsib yam kev hloov ntawm tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim cov roj, tsw hloov, kub hloov
Dab tsi pov thawj siv cov duab ntawm lub dav hlau sib koom ua pov thawj cov khoom geometric?
Cov ntaub ntawv pov thawj uas siv cov duab ntawm lub dav hlau sib koom ua pov thawj geometric zog yog hu ua trigonometric
Puas muaj pov thawj tias lub teeb ua raws li nthwv dej?
Teb Chaws Asmeskas: Dab tsi yog qhov pov thawj tias lub teeb tseem yog nthwv dej? Nws yog vim ib yam dab tsi hu ua Ob Chav Slit Experiment. Yeej, thaum photons raug tua los ntawm ib qho slit thiab lawv ntaus lub detector, lawv ua ib tug qauv ntawm tsuas yog ib txoj kab uas slit