Ingabe Umbala Ubalulekile?
Le yinkinga enkulu, futhi abadobi sekuyisikhathi eside bafuna izimfihlo zayo. Abanye abadobi bacabanga ukuthi ukukhetha kombala kubalulekile, kanti abanye bathi akunandaba. Ngokwesayensi,
Kunobufakazi bokuthi zombili izingcingo zingaba zilungile. Kunobufakazi obuhle bokuthi ukukhetha umbala ofanele kungathuthukisa amathuba akho okuheha izinhlanzi lapho izimo zezemvelo zilungile, kepha isayensi ingakhombisa ukuthi kwezinye izimo, kubaluleke kakhulu kunokucabanga.
Izinhlanzi zingaphezu kweminyaka engama-450 zineminyaka engaphezu kwezigidi ezingama-450 futhi ziyizidalwa eziphawuleka. Ngaphezu kwezinkulungwane zeminyaka, zenze ukuvumelana okuningi okuhle kakhulu endaweni yasolwandle. Ukuphila ezweni lamanzi akulula, ngamathuba aphezulu ezemvelo kanye nezinselelo ezinkulu. Isibonelo, umsindo ushesha kahlanu emanzini kunasemoyeni, ngakho-ke amanzi angcono kakhulu. Ulwandle empeleni luyindawo enomsindo omkhulu. Ngokubona kahle kokuqonda, kusetshenziswa indlebe yabo yangaphakathi kanye nomugqa we-lateral ukuthola inyamazane noma ukugwema izitha, izinhlanzi zingasizakala ngalokhu. Amanzi futhi aqukethe amakhompiyutha ahlukile asebenzisa izinhlanzi ukukhomba amanye amalungu ezinhlobo zawo, thola ukudla, atholwe abazingeli futhi enze eminye imisebenzi lapho kufika isikhathi sokuzala. Izinhlanzi ziye zakha umuzwa omangalisayo wephunga okucatshangwa ukuthi ziba yisigidi esingcono kunabantu.
Kodwa-ke, amanzi ayinselelo enkulu yokubukwa nombala yezinhlanzi nabadobi. Izici eziningi zokukhanya zishintsha ngokushesha ngokugeleza kwamanzi nokujula.
Kulethelwe ini?
Ukukhanya kwabantu kubona kuyingxenye encane kuphela yemisebe ye-electromagnetic etholwe elangeni, esikubonayo njenge-spectrum ebonakalayo.
Umbala wangempela ngaphakathi kwe-spectrum ebonakalayo unqunywa yi-wavelength yokukhanya:
Ama-wavelength amade abomvu futhi orenji
Ama-wavelength amafushane aluhlaza, aluhlaza okwesibhakabhaka futhi onsomi
Kodwa-ke, izinhlanzi eziningi zingabona imibala esingayenzi, kufaka phakathi ukukhanya kwe-ultraviolet.
Ukukhanya kwe-Ultraviolet kuhamba kude emanzini kunalokho kakhulu.
Ngakho-ke abanye abadobi bacabanga:Isibani se-Metal Halide Fishideukuheha izinhlanzi ngempumelelo
Lapho ukukhanya kungena emanzini, ukuqina kwalo kuncipha ngokushesha futhi umbala wayo ushintsha. Lezi zinguquko zibizwa ngokuthi i-attenuation. I-attenuation ingumphumela wezinqubo ezimbili: ukusakazeka nokumuncwa. Ukusakazeka kokukhanya kubangelwa izinhlayiya noma ezinye izinto ezincane ezimiswe emanzini - izinhlayiya eziningi, ukusakazwa okwengeziwe. Ukuhlakazwa kokukhanya kwamanzi ngamanzi ngandlela thile nomphumela wentuthu noma inkungu emkhathini. Ngenxa yokufaka komfula, izidumbu zamanzi ezisogwini zivame ukuba nezinto ezimisiwe eziningi, zivusa impahla kusuka phansi, nokwandisa iplankton. Ngenxa yaleli mali enkulu yezinto ezimisiwe, ukukhanya kuvame ukungena ekujuleni okuncane. Ngamanzi acace phesheya kwezilwandle, ukukhanya kungena ekujuleni okujulile.
Ukufakwa kokukhanya okubangelwa yizinto ezimbalwa, njengokukhanya okuguqulwa kube ukushisa noma okusetshenziswa ekuphendukeni kwamakhemikhali njenge-photosynthesis. Isici esibaluleke kakhulu ngumphumela wamanzi ngokwawo ngokutholwa kokukhanya. Kuma-wavelength ahlukene wokukhanya, inani lokutholwa lihlukile; Ngamanye amagama, imibala ithambekele ngendlela ehlukile. Ama-wavelength amade, anjengebomvu no-orange, amunwa ngokushesha kakhulu futhi angena ekujuleni okukhulu okulula kunama-wavelength amafushane aluhlaza okwesibhakabhaka nakunsomi.
Ukutholwa kubuye kunciphise ukukhanya kwebanga kungangena emanzini. Cishe amamitha amathathu (cishe amamitha ayi-10), cishe amaphesenti angama-60 okukhanyisela okuphelele (ukukhanya kwelanga noma ukukhanya kwelanga), cishe konke ukukhanya okubomvu kuzokwanyiswa. Kumamitha ayi-10 (cishe amamitha angama-33), cishe amaphesenti angama-85 okukhanya okuphelele nakho konke ukukhanya okubomvu, kwewolintshi kanye nophuzi kungenisiwe. Lokhu kuzothinta kakhulu umphumela wokuqoqa izinhlanzi. Ekujuleni kwamamitha amathathu, ubomvu uphendukela eqhweni ukuze ubonise ubumpunga, futhi njengoba ukujula kukhuphuka, ekugcineni kukhuphuka. Njengoba ukujula kukhuphuka, ukukhanya manje okunciphayo kuphenduka okwesibhakabhaka futhi ekugcineni kumnyama njengoba yonke eminye imibala imunwa.
Ukumunca noma ukuwohloka kombala nakho kusebenza ngokuvundlile. Ngakho-ke futhi, indiza ebomvu ngamamitha ambalwa ukusuka ezinhlanzini kubonakala sengathi yimpunga. Ngokufanayo, eminye imibala ishintsha ibanga. Ukuze umbala ubonakale, kufanele ashaywe ngokukhanya kombala ofanayo abese ekhombisa ukuqondiswa kwezinhlanzi. Uma amanzi esekwe noma ehlungiwe) umbala, lolo mbala uzovela njengompunga noma omnyama. Ngenxa yokujula okukhulu kokungena komugqa we-UV, i-Fluorescence ekhiqizwe ngaphansi kwemisebe ebaluleke kakhulu yendawo ecebile ngaphansi kwamanzi.
Ngakho-ke, le mibuzo emibili elandelayo kufanelekile ukucabanga ngabo bonke onjiniyela bethu:
1. Njengoba sonke sazi, i-LED ngumthombo wokukhanya okubandayo, akukho ukukhanya kwe-ultraviolet, kepha ungakhulisa kanjani inani lokukhanya kwe-UV kuIsibani sokudoba esiholwa,ukuze ukhuphule amandla okuheha izinhlanzi?
2. Ungayisusa Kanjani Yonke Imisebe ye-Ultraviolet Efushane Eyingozi Emzimbeni Womuntu KuIsibani sokudoba kwe-MH, futhi ugcine imisebe ye-UVA ethuthukisa amandla okuheha izinhlanzi?
Isikhathi Sokuthumela: Oct-26-2023