Niaj hnub no Wb tham txog qee yam txog UV! Kuv tsis paub ntau npaum li cas koj paub txog ultraviolet rays, thiab seb lawv tseem nyob rau theem uas ultraviolet rays ua rau cov tawv nqaij tsaus. Qhov tseeb, ultraviolet rays muaj ntau txoj kev paub sib cuam tshuam, uas yog kev tsim txom rau peb thiab kuj muaj txiaj ntsig.
Ua ntej tshaj plaws, cia peb paub txog ultraviolet rays ua ntej. Peb txhua hnub kev pom ntawm ultraviolet rays los ntawm lub hnub tiv thaiv thiab kev tua kab. Feem ntau, cov khoom tiv thaiv tshav ntuj yuav cim nrog cov lus qhia ntawm "tiv thaiv ultraviolet rays", thiab peb feem ntau siv ultraviolet rays rau tshuaj tua kab mob. Yog li dab tsi yog ultraviolet rays?
Cov lus piav qhia muab rau peb los ntawm Wikipedia yog tias ultraviolet Rays ib txwm muaj nyob rau hauv xwm, thiab yog ib hom teeb uas tsis tuaj yeem pom los ntawm lub qhov muag liab qab. Nws yog qhov tsis pom lub teeb tau siab dua li lub teeb xiav-violet teeb.
Thib ob, peb tham txog dab tsi ua phem UV Rays ua rau peb. Ultraviolet tshav kuj tseem muaj kev puas tsuaj rau peb, tshwj xeeb yog cov menyuam ntxhais uas nyiam kev zoo nkauj, uas suav nrog tus yeeb ncuab ntuj. Zoo li kev laus tawv nqaij, 80% los ntawm UV rays. Ultraviolet Rays tuaj yeem ncav cuag cov tawv nqaij ntawm daim tawv nqaij, ua rau daim tawv nqaij, zas tawv nqaij, ua rau cov tawv nqaij sib sib zog, ua rau daim tawv nqaij thiab txawm tias tawv nqaij. Yog li ntawd, ultraviolet rays tsis tsuas yog txhawb cov xim tab sis kuj ua cov tawv nqaij ua suab thiab cov kab zoo.
Txawm li cas los xij, cov kws tshawb fawb tau hloov dua siab tshiab UV rays los ntawm kev tsim txom los ntawm cov txiaj ntsig. Ultraviolet Rays tau siv nyob rau hauv kev ua lag luam rau kom tsis muaj menyuam thiab kev tua kab rau qee lub sijhawm. Kev tshawb fawb ntxov tshaj plaws tau pib thaum xyoo 193, siv nyob rau hauv chav tsev kho mob hauv xyoo 1937 thiab hauv cov tsev kawm los tswj Rubbella cov kev lag luam, kev siv tau yooj yim, yooj yim thiab yooj yim siv. Tam sim no ultraviolet tshuaj tua kab mob yog ib qho kev siv tshuaj tua hluav taws, uas yog siv dav hauv chav tsev hauv tsev kho mob, chav kho mob, thiab chav pov tseg.
(Tam sim no ntau lub tsev pabcuam thiab cov chaw ua lag luam siv cov khoom siv hluav taws xob ua kom tsis muaj menyuam yaus thiab tua kab mob)
Tom qab nkag siab txog cov kev puas tsuaj no, peb tuaj yeem npaj peb cov haujlwm sab nraum zoov raws li Ultraviolet chaw nres tsheb, thiab zoo dua tiv thaiv peb tus kheej los ntawm cov raystiolet. Nyob rau tib lub sijhawm, ultraviolet tshuaj tua kab mob kuj tseem nkag mus rau peb lub tsev. Feem ntau ib qho yog kom tshem tawm mites. Txhua tus paub txog mites. Nws tseem tuaj yeem tshem tawm cov kab mob sab laug ntawm cov tsiaj. Peb tseem tuaj yeem siv UV cov khoom lag luam ntsig txog pab peb huv cov pa ib puag ncig peb thiab muab peb tus kheej nrog lub neej zoo.
(Tam sim no ntau tsev neeg lees txais kev siv UV teeb cov khoom lag luam)
Ntxiv rau cov neeg no ib txwm muaj, muaj qee qhov uas tsis tshua tau kov los ntawm txhua tus. Piv txwv li, peb cov dej num hauv nroog, xws li cov dej phwj tuaj, kev lag luam khib nyiab, kev lag luam (hauv tsev), thiab lwm yam. Qhov tseeb, UV cov khoom yog tam sim no tsis tseem ceeb hauv kuv lub neej.
(Peb lub neej yeej tsis muaj kev sib raug zoo los ntawm UV cov tshuaj tua kab mob)
Thaum kawg, nws tsim nyog sau cia tias kev siv tshuaj tua kab mob siv kom ua rau kev nyab xeeb. Thaum siv nyob hauv tsev, tib neeg, tsiaj txhu tsiaj thiab nroj tsuag yuav tsum tawm ntawm thaj chaw ua haujlwm thiab tsis tuaj yeem raug ntev. Yog tias UV teeb kuj muaj qhov ua haujlwm ozone, nws yuav tsum nkag mus rau cov haujlwm ua haujlwm ib teev tom qab lub tshuab raug muab tua. Ozone yuav ua kom raug mob rau tib neeg lub cev yog tias ntau dua qee qhov kev xav tau, tab sis nws yuav cia li decompose thiab tseg tsis muaj qhov chaw nyob, yog li tsis txhob txhawj. Lwm qhov chaw yuav tsum tau ua haujlwm los ntawm cov kws tshaj lij los tiv thaiv kev sib tsoo.
Peb tau tsom mus rau ultraviolet kom tsis muaj menyuam thiab ua kab mob rau 22 xyoo. Yog tias koj muaj kev xav tau lossis lus nug, koj tuaj yeem sab laj rau peb.
Lub Sijhawm Post: Jul-27-2022