Ukukhanya kudlala indima ebalulekileyo ebomini bethu.Kwelona nqanaba lisisiseko, ngephotosynthesis, ukukhanya kukwimvelaphi yobomi ngokwabo.Uphononongo lokukhanya lukhokelele ekuthembisweni kweminye imithombo yamandla, ukuqhubela phambili kwezonyango okusindisa ubomi kubuchwepheshe boxilongo kunye nonyango, isantya sokukhanya kwe-intanethi kunye nokunye okuninzi okufunyenweyo okuthe kwaguqula uluntu kwaye kwabumba ukuqonda kwethu indalo iphela.Ezi teknoloji zaphuhliswa kwiinkulungwane zophando olusisiseko kwiimpawu zokukhanya - ukuqala ngomsebenzi we-seminal ka-Ibn Al-Haytham, i-Kitab al-Manazir (iNcwadi ye-Optics), eyapapashwa ngo-1015 kunye nokubandakanya umsebenzi ka-Einstein ekuqaleni kwenkulungwane yama-20, apho. yatshintsha indlela esicinga ngayo ngexesha nokukhanya.

IUsuku lokuKhanya lweHlabathiibhiyozela indima edlalwa ukukhanya kwisayensi, inkcubeko kunye nobugcisa, imfundo, kunye nophuhliso oluzinzileyo, nakwiinkalo ezahlukeneyo njengamayeza, unxibelelwano kunye namandla.Lo mbhiyozo uya kuvumela amacandelo amaninzi oluntu kwihlabathi jikelele ukuba athathe inxaxheba kwimisebenzi ebonisa indlela isayensi, iteknoloji, ubugcisa kunye nenkcubeko enokunceda ngayo ukufezekisa iinjongo ze-UNESCO - ukwakha isiseko soluntu olunoxolo.

Usuku lwamazwe ngamazwe lokuKhanya lubhiyozelwa kwi-16 ngoMeyi ngonyaka ngamnye, isikhumbuzo sokuqala sokusebenza ngempumelelo kwe-laser kwi-1960 yi-physicist kunye nonjiniyela, uTheodore Maiman.Olu suku lubizo lokomeleza intsebenziswano yezenzululwazi kunye nokusebenzisa amandla ayo okukhuthaza uxolo kunye nophuhliso oluzinzileyo.

Namhlanje ngoMeyi 16, usuku olufanele ukukhunjulwa kunye nokubhiyozelwa kuye wonke umntu okhanyayo.Lo mhla we-16 kuCanzibe wahlukile kwiminyaka edlulileyo.Ukuqhambuka kwehlabathi lobhubhani omtsha wesithsaba kwenze ukuba ngamnye wethu abe nokuqonda okutsha ngokubaluleka kokukhanya.I-Global Lighting Association ikhankanywe kwileta yayo evulekileyo: Iimveliso zokukhanyisa ziyimfuneko yokulwa nobhubhane, kunye nokuqinisekisa ukunikezelwa okuqhubekayo kweemveliso zokukhanyisa kuyisenzo esibalulekileyo sokulwa nobhubhane.