Cov txheej txheem:
- Koj puas tuaj yeem tshav ntuj yam tsis muaj looj tsom iav?
- Puas hnub dhau los ntawm looj tsom iav?
- Puas looj tsom iav hauv lub hnub phem?
- Cov looj tsom iav dub puas tiv thaiv UV?
Video: Koj puas yuav tsum hnav looj tsom iav dub?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Tiv thaiv koj ob lub qhov muag thaum tanning Yog tias koj tanning sab nraum, ib txwm hnav looj tsom iav kom tsim nyog, tag nrho cov looj tsom iav dub. Nrhiav cov looj tsom iav dub uas sau tias "100% Kev Tiv Thaiv UV", thiab xyuas kom lawv siab thiab dav txaus los npog koj ob lub qhov muag thiab daim tawv muag tag.
Koj puas tuaj yeem tshav ntuj yam tsis muaj looj tsom iav?
Koj yuav tsum tsis txhob ntsia ncaj qha rau ntawm lub hnub, nrog lossis tsis muaj looj tsom iav, txawm tias thaum lub hnub ci ntsa iab, vim qhov ntawd tuaj yeem ua rau lub qhov muag puas tsuaj ntau.
Puas hnub dhau los ntawm looj tsom iav?
Hnub rays muaj zog tshajntawm 10 teev sawv ntxov txog 2 teev tsaus ntuj, tab sis qhov ntawd tsis yog tib lub sijhawm UV rays tuaj yeem ua mob rau koj ob lub qhov muag. Glare thiab reflections tuaj yeem ua rau koj muaj teeb meem ib yam nkaus, yog li npaj koj lub looj tsom iav dub yog tias koj yuav nyob ib puag ncig ntawm daus, dej lossis xuab zeb, lossis yog tias koj yuav tsav tsheb (cov iav iav yog qhov pom qhov muag loj).
Puas looj tsom iav hauv lub hnub phem?
Hnav looj tsom iav hauv tsev yuav tsis ua rau koj qhov muag tsis pom kev, tab sis nws tuaj yeem ua rau koj ob lub qhov muag, ua rau qhov muag nkees. Qhov no tuaj yeem ua rau mob taub hau, qhov muag tsis pom kev thiab nce lub teeb rhiab heev. … Hnav looj tsom iav dub nrog cov lo ntsiab muag tsaus yuav ua rau photophobia zuj zus mus ntev.
Cov looj tsom iav dub puas tiv thaiv UV?
Npely, cov looj tsom iav dub pheej yig dua tuaj yeem muab qib qis ntawm kev tiv thaiv UV… Piv txwv li, qee lub looj tsom iav dub yog qis dua $ 20 tab sis muab UV 400, qib siab tshaj plaws ntawm kev tiv thaiv. Uas tau hais tias, looj tsom iav dub pheej yig feem ntau muaj qee yam kev tiv thaiv UV - nws tsuas yog teeb meem ntau npaum li cas.
Pom zoo:
Maui jim looj tsom iav dub puas tsim nyog?
UV tiv thaiv yog qhov tseem ceeb tshaj plaws ntawm looj tsom iav dub. Kev tiv thaiv UV yog tib yam txawm tias polarized, lossis tsis yog polarized. Ray-Ban thiab Maui Jim lo ntsiab muag ob leeg muab kev tiv thaiv UV, thiab qhov ntawd suav nrog.
Cov looj tsom iav dub puas muaj nyob rau xyoo 1800?
Tsis yog, looj tsom iav dub tsis tau yooj yim, tshwj xeeb tshaj yog nyob rau thaj tsam sab hnub tuaj. … Nyob rau xyoo 1800, khw-yuav looj tsom iav dub tuaj hauv ntau yam duab, xws li puag ncig, kab rov tav lossis octagon. Lawv feem ntau yog xiav lossis dub, txawm tias ntsuab tsis yog qhov txawv.
Vim li cas doc ock hnav looj tsom iav dub?
Txawm hais tias tus kws kho mob Octopus nws tus kheej yog portly, nyob rau hauv lub cev tsis zoo, thiab yog nyob ze-pom, nrog nws txoj hlua txuas nws lub cev ntau tshaj qhov sib tw rau Kab laug sab-txiv neej. Qhov kev huam yuaj kuj ua rau nws lub qhov muag rhiab heev rau lub teeb, kom nws yuav tsum hnav tsom iav nrog cov tsom iav dub Vim li cas Dr Octopus hnav looj tsom iav dub?
Yuav tsum looj tsom iav dub kov koj ob sab plhu?
Ob lub tsom iav zoo yuav tsum tau xis nyob ntawm tus choj ntawm koj lub qhov ntswg, thiab yuav tsum tsis txhob nias tawm tsam koj lub hauv pliaj lossis lub puab tsaig. Tab sis lawv yuav tsum tsis txhob so kom deb ntawm qhov kawg ntawm koj lub qhov ntswg kom lawv plam thaum koj squint lossis wrinkle koj lub qhov ntswg .
Yuav ua li cas txhawm rau txhawm rau tsom iav tsom iav?
3 Cov kauj ruam yooj yim los kho koj lub Newtonian Reflector Telescope Kauj Ruam 1: Muab daim iav thib ob rau ntawm qhov axis ntawm lub qhov tsom iav. Kauj Ruam 2: Teem lub qhov muag ntawm qhov nruab nrab ntawm daim iav thawj. Kauj Ruam 3:
