Kuyini ukubona kwamakati?

Kukhona abantu abambalwa emhlabeni abangenandaba namakati. Lezi zilwane ezinomkhuhlane ziyamthakazelisa futhi ziyasithakazelisa, futhi amehlo abo anamandla omlingo. Amehlo wekati ayinkulu kakhulu, njengazo zonke izilwane ezisebusuku. Uma umzimba wethu neso linye lilingana nalezo zezilwane zethu ezifuywayo, sasizobona izikhathi eziningi.

Umbono wamakati emnyama

Ebumnyameni obukhulu ikati ayiboni nhlobo, kodwa kubalulekile ukuvela i-ray encane yokukhanya, njengoba iphenduka ibe ngumzingeli ongabonakali ebusuku, nakuba ibona ebusuku konke okumnyama nomhlophe. Kumele kuthiwa ngokukhanya okukhulayo kokukhanya, ukubona kwekati, ngokungafani nezinja , kuyaba kubi nakakhulu. Ukuphila okuvamile, izilwane zethu ezifuywayo zidinga ukukhanya okuncane izikhathi ezingu-6 kunathi.

Kuyathakazelisa ukuthi ukuziphatha kwamakati angaboni akufani neze nokujwayelekile. Ukuntuleka kombono kuhlawulelwa ngempumelelo ngokuhlukumeza kweminye imizwa, njengokuzwa iphunga nokuthinta. Ubude bamadevu kulawo makakati bukhulu kunolunye wesithathu kunalokho okufanele lube khona.

Amehlo ethu, ngokungafani namehlo ekati, anebala eliphuzi, lapho kufika khona ukukhanya okukhanyayo futhi lapho umbono wezwe elizungezile uxhomeke khona, kuhlanganise nokubonakala okubonakalayo nokukhanya kwembala. Emakati, indawo ephuzi ayitholakali, futhi i-retina yamehlo abo ihlukaniswe yaba izingxenye ezimbili. Ingxenye yayo engaphezulu inesibopho sombono ebumnyameni. Umbala ohlaza okwesibhakabhaka wamehlo enkathi ubusuku akuyona into engaphezu kokubonakala kwengxenye engenhla ye-retina. Ukungabi khona kwebala eliphuzi kuthinta ubuciko obubonakalayo. Kodwa amakati akabukeli i-TV futhi akawafundi izincwadi, futhi ngeke kube nzima ukubamba igundane kwimigqa yalo. Umuntu kangcono ubona izinto ezihamba kancane, kodwa ikati ephikisanayo. Uthola ukusabela okusheshayo kumzingeli, nakuba engaboni kahle ngaphansi kwekhala lakhe. Ibanga elingcono kakhulu lapho ikati elibona khona liyi-0.75 - 6 m.

Sekuyiminyaka eminingi, izingxabano zazibhekwa njengoba amehlo enkathi abona. Abantu bacabanga isikhathi eside ukuthi amakati kuphela anamehlo amnyama namhlophe. Noma kunjalo, impumelelo yesayensi yamanje ibonisa ukuthi amakati anombono wombala ntambama. Imvelo inikeze amakati ukuba akwazi ukubona ama-shades amaningi embala wegundane, umbala oyintandokazi wamakati. Ngombono, ingxenye engezansi ye-retina, ene-brown pigment, ihlangana emini. Le pigment ivikela amehlo ekati ekushiseni, okungabangelwa yimisebe ye-ultraviolet yelanga. Ukukhanya kokukhanya okungena emehlweni kulawulwa yi-iris, futhi umfundi wekati unomqondo ovalwe ovalweni futhi uyakwazi ukwehlisela endaweni efana nesigxobo.

Uma unayo ikati, unake amehlo akhe, uwasuse, uvimbele izifo ezihlukahlukene. Uzokubonga ngothando lwakhe.