Cov txheej txheem:
- Yuav ua li cas cov tshuaj tiv thaiv raug tsim?
- Peb puas tuaj yeem pom cov tshuaj tiv thaiv hauv ntiaj teb?
- Paul Dirac nrhiav tau cov tshuaj tiv thaiv li cas?
- Vim li cas antimatter thiaj kim?
Video: Peb paub li cas cov tshuaj tiv thaiv muaj nyob?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Yog tias thaj chaw tiv thaiv tsis muaj teeb meem ntawm qhov chaw muaj, gamma rays uas tsim tawm hauv kev cuam tshuam kev puas tsuaj raws tus ciam teb ntawm thaj chaw teeb meem thiab thaj chaw antimatter yuav ntes tau. … Lub xub ntiag ntawm qhov tshwm sim antimatter yog kuaj pom los ntawm ob lub gamma rays tsim txhua zaus positrons rhuav tshem nrog cov teeb meem nyob ze.
Yuav ua li cas cov tshuaj tiv thaiv raug tsim?
Particle thiab antiparticle khub yog tsim los ntawm cov khoom loj ntawm lub zog … Hloov pauv, thaum cov khoom sib ntsib nrog cov tshuaj tiv thaiv, lawv rhuav tshem mus rau hauv qhov tawg ntawm lub zog. Thaum lub sij hawm ntawm qhov loj bang, lub siab zog ceev ntawm lub ntug yuav tsum tau tsim ib tug sib npaug npaum li cas ntawm hais thiab antiparticles.
Peb puas tuaj yeem pom cov tshuaj tiv thaiv hauv ntiaj teb?
Tus antimatter ploj lawm - tsis yog los ntawm CERN, tab sis los ntawm Lub Ntiaj Teb! Tsawg kawg yog qhov peb tuaj yeem txiav txim siab kom deb li deb ntawm kev ua tib zoo tshuaj xyuas cov pov thawj. Rau txhua qhov tseem ceeb ntawm cov teeb meem, muaj ib qho antiparticle nrog tib lub zog, tab sis tus nqi hluav taws xob rov qab.
Paul Dirac nrhiav tau cov tshuaj tiv thaiv li cas?
Paul Dirac xyoo 1928. … Tsuas yog ob peb xyoos tom qab ntawd, kev soj ntsuam ntawm cosmic rays nyob rau hauv cov huab cua sab saud nrhiav pom thawj cov tshuaj tiv thaiv kab mob, lees paub Dirac qhov kev xav. Nws tau qhia tias kev sib txheeb thiab quantum mechanics tuaj yeem ua ke tom qab tag nrho, tsim kom muaj ib ceg tshiab ntawm physics: quantum field theory.
Vim li cas antimatter thiaj kim?
Vim nws qhov xwm txheej tawg (nws rhuav tshem thaum sib cuag nrog cov teeb meem ib txwm muaj) thiab cov khoom siv hluav taws xob ntau, tus nqi ntawm kev ua cov tshuaj tiv thaiv yog hnub qub. CERN tsim tawm txog 1x10^15 antiprotons txhua xyoo, tab sis qhov ntawd tsuas yog 1.67 nanograms.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov tshuaj tiv thaiv thiab tshuaj tiv thaiv?
Raws li nouns qhov txawv ntawm antitype thiab hom yog hais tias antitype yog ib yam dab tsi uas yog cim los yog sawv cev los ntawm ib homthaum hom yog ib pab pawg raws li cov yam ntxwv sib koom; ib hoob . Antitype txhais li cas? 1a:
Cov tshuaj tiv thaiv puas muaj txiaj ntsig tiv thaiv delta variant?
Cov tshuaj tiv thaiv Delta muaj txiaj ntsig zoo li cas ntawm cov tshuaj tiv thaiv COVID-19? Hais txog Delta Variant: Cov tshuaj tiv thaiv muaj txiaj ntsig zoo rau kev mob hnyav, tab sis Delta variant ua rau ntau dua Kev kis kab mob thiab kis tau sai dua li cov qauv ua ntej ntawm tus kab mob uas ua rau COVID-19.
Cov neeg mob tiv thaiv kab mob yuav tsum tau txais cov tshuaj tiv thaiv?
Vim li cas CDC thiaj pom zoo tias cov neeg uas muaj kev tiv thaiv kab mob tiv thaiv kab mob tau txais koob tshuaj mRNA COVID-19 ntxiv los ntxiv rau 2-dose thawj koob tshuaj tiv thaiv kab mob mRNA COVID-19? Cov neeg uas muaj kev tiv thaiv kab mob los yog cov neeg siv tshuaj tiv thaiv kab mob yog nyob ntawm muaj kev pheej hmoo ntau rau tus kab mob COVID-19 hnyav .
Cov tshuaj tiv thaiv oxford puas muaj nyob hauv peb?
Lub sijhawm no, cov tshuaj tiv thaiv tau pom zoo siv hauv tebchaws Askiv thiab ntau lub tebchaws European txij lub Kaum Ob Hlis. Nws tseem tsis tau pom zoo hauv Asmeskas vim tias Lub Chaw Tswj Xyuas Khoom Noj thiab Tshuaj (FDA) tau thov kom lub tuam txhab muab cov txiaj ntsig los ntawm kev sim loj, Umair Irfan qhia rau Vox .
Cov tshuaj tiv thaiv kab mob puas muaj kev tiv thaiv kab mob?
Nws yuav siv sijhawm ntev npaum li cas txhawm rau txhim kho kev tiv thaiv kab mob COVID-19 tom qab tau txais cov tshuaj tiv thaiv? tshuaj tiv thaiv COVID-19 qhia peb lub cev tiv thaiv kab mob kom paub txog thiab tawm tsam tus kab mob uas ua rau COVID-19.
