Mary Allen
Makati anoona nyika zvakasiyana zvakanyanya kupfuura vanhu. Verenga pano izvo katsi dzinoona mavara, nei katsi dzichifambidzana zvakanaka munguva yerubvunzavaeni uye ndezvipi zvakakosha izvo ziso rekatsi rine.
Kufarirwa kwemaziso ekatsi kuri mu "cat image" yedu kupfuura munhengo chaiyo yekunzwa yekatsi, iyo inonyanya kufanana muchimiro neziso remunhu.
Kutaura zvazviri, ziso remhuka imwe neimwe inoyamwisa rine buri (mwana) iro chiedza chinowira palenzi. Mwaranzi yemwenje inodzorwa nelenzi uye, mushure mekupfuura nemukati mekamuri ine rima (muviri wevitreous), inowira pane yakapenya-inonzwa layer (iyo retina). Ikoko kunouya kune kuratidzwa kwezvinoonekwa.
Katsi Dzinogona Kuona Aya Mavara
Nyika yekatsi ingangove yakati pfumbu pane yedu. Mareceptor ari muziso rekatsi anoumbwa nemakoni mashoma, ari maseru anotibvumira kuona ruvara. Katsi dzinoshayawo makoni ayo anonzwira mwenje mutsvuku. Semuenzaniso, katsi inogona kusiyanisa pakati pegirinhi nebhuruu, asi inoona tsvuku chete semumvuri wegrey.
Mukudzoka, kati ine "tsvimbo" yakawanda iyo inokonzera chiedza chekunzwa uye chiedza-rima maonero. Mukuwedzera, kati inyanzvi ye "ziso rinokurumidza". Special receptors mumaziso ake anoshanda sema detectors ekufamba uye anomugonesa kuita nekumhanya kwemheni. Mukuwedzera, katsi dzinoona mafambiro mune zvakadzama. Vanokwanisa kugadzira mafuremu akawanda pasekondi kupfuura vanhu.
Ongororo yakaitwa neZoological Institute muMainz yakaratidza kuti bhuruu ndiyo yaifarirwa nekatsi dzakawanda. Kuti asvike pakudya, makati aifanira kusarudza pakati peyero nebhuruu. 95% vakasarudza bhuruu!
Maziso eKatsi Akakura Kuenzaniswa NeZiso Romunhu
Nehupamhi hwe 21 mm, ziso rekati ihombe - mukuenzanisa, maziso emunhu akakura zvikuru anosvika pachiyero che 24 mm chete.
Mukuwedzera, ziso rekati rinoratidzika rakasimba. Isu vanhu tajaira kuona zvichena zvakawanda mumaziso evamwe vedu. Kana vanhu vachichinja kwavakatarira, iris inoita seinofamba ichipfuura nepamunda chena weziso. Mukati, chena yakavanzwa muziso reziso. Kana katsi ikachinja kwairi kutarisa, isu hatitombooni "chena" uye tinotenda kuti maziso akanyarara.
Vana, vanogona kutetepa kuita slits akatwasuka, havavhunduke kune vamwe vanhu nekuti vanoyeuchidza maziso ereptilian. Muchokwadi, katsi ine vadzidzi vakamira iyi inogona kuenzanisa chiitiko chechiedza zvakanyanya kupfuura isu vanhu vane denderedzwa vadzidzi vedu uye nekudaro tinokwanisa kushandisa zvakanyanya mwenje wechiitiko.
Ndokusaka Katsi Dzichinyatsoona Pamadekwana
Maziso ekati anozivikanwa nekugona kwavo kuratidza. Katsi dzinopfuura nechiedza chakapetwa kashanu kana katanhatu pane vanhu, izvo zvinobatsira chaizvo pakuvhima manheru. Chimwe chezvikonzero zveiyi "clairvoyance" mumakatsi ndeye "tapetum lucidum", inoratidzira dhizaini pane retina yekatsi. Iri ziso rekatsi rinoshanda se“residual light amplifier” nekuratidza mwaranzi wega wega wechiedza uye nokudaro kushandura masero ekuona ekati zvakare.
Lens yayo yakakura inobatsirawo pakushandiswa kuri nani kwechiedza. Mushure mezvose, katsi dzine maseru akapetwa kaviri anoona chiedza sevanhu. Ichi ndicho chikonzero katsi dzinogona kuona zvakanyanya manheru. Nekudaro, panofanirwa kuve nechiedza chidiki, murima rakazara katsi haigone kuona chero chinhu.
Sezvo maziso ekatsi ari kupenya, haaone pini-yakapinza. Kune rumwe rutivi, ivo havakwanisi kugadzirisa maziso avo kune madaro uye, kune rumwe rutivi, vane kona yakakura yekuona acuity kana ichienzaniswa nevanhu. Iko kona yekuona acuity chiyero chekugona kuparadzanisa pfungwa mbiri dziri pedyo pamwe chete.