Rikunarita-ORG/Wikinium huggingface dataset:
# Imitha ye-ultraviolet

Umthombo oyintloko wokukhanya kwe-ultraviolet eMhlabeni liLanga. Umfanekiso ngumfanekiso wombala wobuxoki othathwe kwi-ultraviolet spectrum ekude
Kwifiziksi, **imitha ye-ultraviolet** , ehlala ifinyeziwe kwi**-UV** kwaye eyaziwa ngokuba **yimitha ye-UV** okanye **ukukhanya kwe-UV**, ithathwa njengemitha ye -electromagnetic spectrum phakathi kokubonakalayo. ukukhanya kunye ne -4 nm . Imitha ye-Ultraviolet yenza malunga ne-10% yokukhanya okukhutshwa liLanga kwaye iveliswa ziigesi ze-ionized kunye nezibane ezithile ( izibane zemercury vapor kunye nezibane zeWood ).

Imitha ye-UV ayibonakali emehlweni abantu, ngokuqhelekileyo ayiboni ukukhanya ngobude obungaphantsi kwama-390. nm. Nangona kunjalo, kukho okungafaniyo: phantsi kweemeko ezithile, abantwana kunye nabaselula banokubona i-ultraviolet ukuya kuma-310. nm. I -lens, ngokubanzi, ihluza i-UV-B okanye i-frequencies ephezulu, kodwa abantu abaphethwe yi-pathologies efana ne -aphasia (ukungabikho kwe- lens ) banokubona kwakhona kwi-UV band. Imitha yeUV ekufutshane nobude obubonakalayo ebantwini inokubonwa zizinambuzane, ezinye izilwanyana ezincancisayo kunye neentaka ezininzi.

Imitha ye-UV inamandla kakhulu, inamandla amakhulu e-ionizing kunye ne-photoelectric, ibangela i-fluorescence kunye ne -phosphorescence kwizinto ezahlukeneyo, kwaye ineziphumo ezibonakalayo zebhayoloji, kuquka nokuguqulwa kwesakhiwo se -DNA . I-UV kubude bamaza amade (ukusuka ~ 200 ukuya kwi-400 nm) inokubangela ukusabela kweekhemikhali, njengokukhazimla okanye i-fluorescence phenomena.

Iimpembelelo zebhayoloji ze-UV, ngenxa yokusebenzisana kwazo kunye neemolekyuli zezinto eziphilayo, zinoxanduva lweziganeko ezifana nokutshisa, i-freckles kunye nokutshiswa kwelanga; zikwamela oyena nobangela womhlaza wolusu . Nayiphi na into ephilayo inokonakala kanobom yimitha ye-UV evela eLangeni ukuba indawo elungileyo yemitha yemitha ibingahluzwanga yiatmosfera yoMhlaba . Ubude obufutshane be-ultraviolet, obungaphantsi kwe-121 nm, bukhupha umoya ngokukhawuleza kangangokuba uphantse ufunxeke ngokupheleleyo ngaphambi kokuba ufikelele emhlabeni. Ngakolunye uhlangothi, i-ultraviolet nayo inoxanduva lokuqinisa amathambo, ukuthatha inxaxheba ekubunjweni kwe-vitamin D, kwiindawo ezininzi ze-vertebrates zomhlaba , ngoko ke i-UV inemiphumo enenzuzo kunye neyingozi kwimpilo yabantu (kuxhomekeke kakhulu kwi-dose).
# Ingonyama

Ibhubesi
Ividiyo yengonyama kunye namathole ayo ePhinda Reserve
**Ingonyama** (Panthera leo) yikati enkulu yohlobo *lwePanthera*, inzalelwane yaseAfrika naseIndiya.