Muva nje, ithimba labacwaningi abavela eNyuvesi yase-Exeter e-UK lithole ukuthi ezingxenyeni eziningi ze-Europe, uhlobo olusha lokungcoliswa kokukhanya selugqame kakhulu ngokwanda kokusetshenziswa kweI-LED yokukhanyisa kwangaphandle. Ephepheni labo elishicilelwe kujenali i-Progress in Science, leli qembu lichaze ucwaningo lwalo ngezithombe ezithathwe e-International Space Station.

Ucwaningo lwangaphambilini lubonise ukuthi ukukhanya okwenziwa endaweni yemvelo kungaba nemiphumela emibi ezilwaneni zasendle nakubantu. Ngokwesibonelo, ucwaningo luye lwabonisa ukuthi kokubili izilwane nabantu babhekana nokuphazamiseka kwendlela yokulala, futhi izilwane eziningi zididaniswa ukukhanya ebusuku, okuholela ochungechungeni lwezinkinga zokusinda.

Kulolu cwaningo olusha, izikhulu ezivela emazweni amaningi bezikhuthaza ukusetshenziswa kweUkukhanyisa kwe-LEDemigwaqweni nasezindaweni zokupaka, kunokukhanyisa isibani se-sodium esivamile. Ukuze bathole ukuqonda okungcono komthelela walolu shintsho, abacwaningi bathole izithombe ezithathwe osomkhathi ku-International Space Station kusukela ngo-2012 kuya ku-2013 nango-2014 kuya ku-2020. Lezi zithombe zinikeza ububanzi obungcono bamaza okukhanya kunezithombe zesathelayithi.

Ngezithombe, abacwaningi bangabona ukuthi yiziphi izifunda eYurophu eziguqulele kuzoUkukhanya kwesikhukhula se-LEDfuthi ngezinga elikhulu, ukukhanya kwe-LED kuye kwaguqulwa. Bathole ukuthi amazwe anjenge-UK, i-Italy, ne-Ireland aye abhekana nezinguquko ezinkulu, kuyilapho amanye amazwe anjenge-Austria, iJalimane neBelgium engakaze abe nezinguquko. Ngenxa yobude obuhlukene bokukhanya okukhishwa ama-LED uma kuqhathaniswa nama-sodium bulb, ukwanda kokukhishwa kokukhanya okuluhlaza okwesibhakabhaka kungabonwa ngokucacile ezindaweni eziguqulelwe ekukhanyeni kwe-LED.

Abacwaningi baveza ukuthi bathole ukuthi ukukhanya okuluhlaza okwesibhakabhaka kungaphazamisa ukukhiqizwa kwe-melatonin kubantu nakwezinye izilwane, ngaleyo ndlela kuphazamise indlela yokulala. Ngakho-ke, ukwanda kokukhanya okuluhlaza okwesibhakabhaka ezindaweni ezikhanyisa i-LED kungase kube nemiphumela emibi emvelweni nakubantu abahlala futhi abasebenza kulezi zindawo. Baphakamisa ukuthi izikhulu kufanele zifunde ngokucophelela umthelela wokukhanyisa kwe-LED ngaphambi kokuthuthukisa amaphrojekthi amasha.