Abin da kuka koya ba kawai zai burge ku ba, amma zai canza halinku har abada.
Mafi sashin jikin jiki shine idanu. Suna iya faɗar abubuwa da yawa game da mutum - yanayin tunanin da tunaninsa, lafiya, da dai sauransu. A hanyar, ga dabba dabba, idanu ba wani bangare ne na jiki ba a gare mu. Mun dauki maka 52 abubuwa masu ban sha'awa game da idanu.
1. Mun ga duniya ba tare da ido ba, amma ta kwakwalwa.
A gaskiya, idanu kawai tattara bayanai, sabunta duk canzawa bayanai kuma canja wurin shi duka zuwa kwakwalwa. Kuma ya riga ya "ganin" cikakken hoton. Kuma wasu lokuta ba'a haifar da hoto mara kyau ta hanyar hangen nesa ba, amma ta matsaloli a wurin na kwakwalwa.
2. Cikin hankalin mutum da shark suna da kama da yawa.
Wannan shine dalilin da ya sa magunan sunyi matukar bukatar su a cikin maganin ophthalmology. An yi amfani dasu a matsayin implants.
3. Mutane da karnuka ne kawai a cikin duniyar duniyar da suke amfani da idanu yayin sadarwa.
Idanun ido yana kara muhimmancin abin da aka fada. Har ila yau, ra'ayi zai iya ƙayyade halin da mai magana da shi wanda ake magana da shi. By hanyar, karnuka kawai sadarwa tare da mutane "gani."
4. Ba zai yiwu a yi hanzari tare da idanu ba.
Akwai akalla 2 ƙididdigar bayani akan wannan batu. Bisa ga farkon kulle ido na atomatik, jiki yana kare idanunsa daga dukkan kwayoyin cuta da kwayoyin da ke tashi a lokacin sneezing. Hanya ta biyu tana haɗuwa da wannan lamari tare da kullun kwayoyin. Lokacin da sneezing, hawan fuska da hanci suna kwangila, saboda idanu suna rufewa ta atomatik.
5. Yara na ma'aurata cikin ƙauna, kallon juna, an kara girma.
A halin yanzu a cikin jikin akwai tarin kwayoyin hormonal kwayoyin (ji na jin dadi) da oxytocin (ma'anar abin da aka haɗe). A sakamakon haka, ana tura sakonni na musamman zuwa kwakwalwa, kuma ana kwashe 'yan makaranta da 45%.
6. Yara an haife su sosai.
Yawancin jarirai suna da matsakaici na tsaka-tsaki (kimanin 3 diopters). A shekara ta 3, an inganta tsarin tsarin da aka yi amfani da shi, kuma fadakarwa ta shiga cikin rashin ƙarfi. Bayan kuma a duk wannan matsala ta ɓace.
7. Launi na ido yana hade da gadon sararin samaniya.
Yawancin lokutan mutane masu launin shuɗi suna samuwa a yankunan arewacin. Alal misali, a Estonia, kashi 99 cikin 100 na asalin 'yan asalin suna da idanu masu launin. Masu launi-ƙungiyar Brown sun fi zama a cikin yankunan da yanayi ya kasance matsakaici. Amma a cikin iyakar yankin akwai mutane da idanu baki.
8. Kowane ido yana kunshe da kwayoyin kwayoyin halitta miliyan 107.
A lokaci guda kuma, nau'o'in miliyan 7 suna da alhakin fahimtar launi gamut. Kuma sauran suna buƙatar don gane launin fata da baki. A sakamakon haka, ya bayyana cewa kasa da kashi 10 cikin dari na masu karɓa na hoto suna da alhakin fahimtar hoto.
9. Hannun ido na mutum kawai yana kallon kawai 3 (blue, ja da kore).
Sauran sauran launuka 4 da muka gani (orange, rawaya, blue da purple) sune samfurin 3 launuka na farko. Bugu da ƙari, ido yana iya rarrabe kimanin dubu dari dari, wanda 500 daga sautin launin toka.
10. Kowane mutum 12 yana da lalata.
A cikin mata, wannan matsala ta faru sau 40 sau da yawa sau da yawa. Bugu da kari, bisa ga kididdigar, yawancin lokuta ana makantar da makaho a Slovakia da Jamhuriyar Czech. Amma daga cikin 'yan Indiyawan Brazil da kuma yawan mutanen da aka yi. Fiji wannan rashin lafiya bai wanzu ba.
11. A cikin kashi 2 cikin dari na mata akwai maye gurbin kwayoyin halitta - kasancewar wani karin mazugi a cikin ido na ido.
Saboda wannan bambanci daga al'ada, mata zasu iya bambanta kimanin miliyan 100.
12. Wasu mutane suna da idanu daban-daban.
Wannan sabon abu ana kiransa heterochromy. Yana faruwa a cikin mutum 1 daga 100.
13. Fusho mai idanu ne ainihin blue.
A cikin Iris, akwai mai yawa melanin - yana shafan haske mai tsawo da mita kadan. Lokacin da haske ya bayyana kuma launin ruwan kasa yana bayyana. By hanyar, akwai ma da laser dabara da ba ka damar cire pigment da launin ruwan kasa don yin shi blue. Sai dai wannan tsari ne wanda ba zai yiwu ba - ba zai yiwu a dawo launin launin ruwan kasa zuwa idanu ba.
14. Girman idanu daya ne ga dukan mutane.
Duk da nauyin nauyin mutum da siffofi na mutum na tsarin jikinsa, ido a cikin dukan manya suna da sifofin guda ɗaya. Tare da nau'in kwallin kwando na 24 mm yana auna 8 g. A cikin wadanda ba su da kyau, adadin diamita na ido ne 18 mm tare da nauyi na 3 g amma kawai 1/6 na ido ido ne.
15. Ƙananan tufafi ba su da wani hangen nesa.
Hanyoyi masu tasowa suna kara yawan jini. Wannan mummunan yana rinjayar yanayin dukan kwayoyin, ciki har da ido.
16. "Ba za ku sami lokacin yin hankali ba."
Mutumin yana lakabi 14,280 sau a rana a huta. A cikin shekara ya bar miliyan 5.2. Ɗaya daga cikin haske yana da 100-150 milliseconds. Wannan yana cikin ɓangare na aikin gwaninta.
17. Mata suna da sau 2 sun fi hankali fiye da maza.
Wannan shi ne saboda tsarin mai juyayi a cikin jima'i mai kyau ya fi damuwa fiye da maza.
18. Wasu mutane suna tunanin cewa hawaye ne kawai ruwa, amma ba haka ba ne.
A cikin kowane nau'i na hawaye suna da muhimman abubuwa uku. Bugu da ƙari, ruwa, akwai sauran raguwa da ƙwayoyi. Idan an yi rarrabawar waɗannan abubuwa, idanu sun bushe.
19. A lokacin rayuwarsa, mutum yana ganin hotuna miliyan 24.
Kuma, don 1 na biyu mutum zai iya mayar da hankalin abubuwa 50.
20. Cutar diagnose type II ciwon sukari a idanu.
Sau da yawa, mutanen da ke fama da wannan cuta, ba su gane cewa suna fama da ciwon sukari ba. Ga irin mummunar cutar, wadda ta kasance kusan asymptomatically. Sanin asalin cutar zai iya zama bayan binciken ido. A wannan yanayin, ana lura da ƙananan lalata a kan bango na ido.
21. A sarari, 'yan saman jannati ba za su iya kuka ba.
Saboda rashin nauyi, hawaye suna tattare a cikin ƙananan bukukuwa.
22. Mafi yawan aiki a jikin mutum shine tsokar ido.
Hanya ta idanu an samar ta 6 tsokoki.
23. Iris yana da halaye na musamman 256.
Don kwatanta: a cikin sawun yatsa akwai kawai 40. Saboda haka, duba bayanan din yana taimakawa wajen gano mutum marar kuskure.
24. Gilashin ido na ido na mutum yana da hankali fiye da kyamara mafi girma.
Ya isa ya gudanar da ƙananan gwaji. Tsaya a tsakiyar dakin kuma duba kewaye da kai. Abubuwan da kuke gani suna a nesa daban-daban. Amma ruwan tabarau zai iya sauya saurin mayar da hankali - wannan tsari ya faru ba tare da shigarku ba. Lissafi na hoto don "sauyawa" daga wani zuwa wani nesa zai dauki seconds.
25. Abubuwan da ke kallon kwakwalwarmu fiye da kowane nau'i.
Kowace lokuta mai yawa bayanai na gani suna shiga cikin kwakwalwa. Dangane da bandwidth, ana iya kwatanta tashar ta hanyar da dukkanin wannan bayanan aka kwatanta da tashar mai ba da Intanet na megapolis.
26. Squint a cikin Maya mayaƙa ya kasance mai laushi.
Wannan batu an dauke shi alamar kyau. Abin da ya sa da yawa iyaye, lokacin da aka haife su yarinya da idon dama, ya haɓaka ƙyamarta.
27. Babbar idanu mai girma ta tudu.
Kusan adadin halittar wannan halitta shi ne 40 cm.Da ne 1/10 na tsawon jikinsa.
28. Kowane ɗakin "yana rayuwa" na kimanin watanni 5.
Sa'an nan kuma ya saukad da waje kuma sabon ya girma a wurinsa.
29. Cikin kwakwalwa yana karɓar hoton da aka juya daga idanun.
A cikin ɓangaren na gani na kwakwalwa, ana nazarin bayanan da aka gani. A sakamakon haka, muna samun hoto "dama".
30. Gwanayen ƙudan zuma suna haɗe da gashi.
Irin waɗannan "na'urorin" sun bada izinin kwari don ƙayyade jagorancin motsi na iska da jirgin.
31. A lokacin takaici, duniya ta bayyana a launin launin toka.
A wannan lokacin akwai kuskuren ƙwarewar ƙwayoyin hannu don bambanta sautunan. Bugu da ƙari, matakin dopamine yana raguwa. Duk wannan yana haifar da murguwa na hoton da ya fito.
32. Pirates ba daya ido!
Cikin takalma, ado a ido, hanya ce ta musamman don dacewa da rayuwa a cikin yanayin ruwa. Yayin da ido daya yayi amfani da hasken rana mai haske, na biyu - taimakawa a ƙarƙashin bene, inda fadin duhu ya yi sarauta.
33. Idanun idanu biyu sun wanzu.
Kwararrun yara biyu a idon daya bane bafane ba ne, amma wani abu ne mai ban mamaki, wanda a cikin maganin likita ba shi da wani abu. Liu Chune, wani ministan kasar Sin wanda ya rayu a karni na 20 BC, ya sha wahala daga wannan cuta.
34. Mafi yawan abubuwan idanu.
Kim Goodman daga Birnin Chicago ya zama mai rikodin mai rikodin da zai iya fadada idanunsa. Suna da nauyinta a cikin 1.2 cm. Wannan irin basirar ga mace ta buɗe bayan da kwallo ta hoton ta buga shi a kansa.
35. Sakamakon ilimin schizophrenia zai iya zama daidai da motsi na idanu.
Ya nuna cewa mutanen da ke fama da wannan cuta, ba su da ikon yin saka idanu ga abubuwa masu motsi. Bugu da ƙari, yana da wuya a gare su su mayar da hankalin su akan batutuwa.
36. Bayan shafawa idanun karkashin idanu, akwai hasken haske.
Ba kome ba sai phosphene. Wannan sabon abu yana wucewa kuma baya buƙatar magani.
37. Zamanin lokaci na fara ido tare da baƙo yana da 4 seconds.
Wannan lokaci ya isa don ƙirƙirar ra'ayi na farko kuma tuna wasu bayanan, alal misali, launi na idanun mutum.
38. Idan akwai haske mai hasken rana ko mummunan sanyi, launi na idanu na iya sauya sauƙi.
Wannan sabon abu a magani ana kiranta "chameleon".
39. Gwanin tarin man fetur yana kimanin kilo 1.
Duk da haka, duk da irin wadannan sifofin sha'awa na gabobin gani, yawancin whales ba su ga wani abu gaba da kansu ba.
40. Dangane da wurin da idanu suke, yana yiwuwa a rarrabe dabba daga mai cin ganyayyaki daga mai magunguna.
An saka ido na farko a kowane gefen kai: wannan shine ganin hatsari a lokaci. Abun dabba yana da idanu a gaban kai: saboda wannan, yana sauƙaƙe wa wanda aka azabtar.
41. Tare da shekaru, kusan kowane mutum yana buƙatar gilashi don karantawa.
Wannan sanarwa yana dogara ne akan gaskiyar cewa a tsawon lokacin da ruwan tabarau na ƙaura ya rasa ikonsa don mayar da hankali ga abubuwa masu kusa. Bugu da ƙari, an kiyaye wannan a cikin 99% na mutane a cikin tsawon shekaru 45 zuwa 50.
42. Wutan Red.
Wannan launi mai ban mamaki ne kawai ke samuwa a cikin Albinos. Tun da babu wani melanin a cikin iris, yana da cikakken m. Amma saboda tasoshin jini a cikin ido, idon ya dubi ja.
43. Launi mai laushi mai tsabta.
Mafi mahimmanci, watakila, shine launi mai launi m. Idan aka karɓa daga ra'ayi na kwayoyin halitta, to wannan irin launi ne mai nuna launin shuɗi ko blue. An tabbatar da shi a kimiyya cewa mutanen da kullun idanu suke zaune a yankunan kudancin Kashmir.
44. The Big Dipper zai taimaka wajen duba hangen nesa.
Wajibi ne mu dubi wannan rukuni a daren. Idan, lokacin da kake duban Big Dipper a kusa da tsakiyar tsakiyar guga za ka ga karamin alama, to, kana da komai don ganinka.
45. Babbar jariri ba ta da hawaye.
Wannan abu ne na al'ada. Bayan bayyanar crumbs, hawaye gland fara aiki ba nan da nan. Na farko hawaye zai iya bayyana ne kawai zuwa makon 6 na rayuwar jaririn.
46. Mata suna kuka kusan sau 7 sau da yawa fiye da maza.
A cewar kimanin kwanan nan, a matsakaicin lokaci, wakilin mata tana kururuwa sau 47 a shekara, kuma mutum - sau 7.
47. Rubuce-rubuce mai sauri yana taimakawa wajen adana idanu.
Tare da karatu mai sauri, idanuna sun gaji. Bugu da} ari, kamar yadda likitoci suka ce, yin amfani da hanzarin bayanai, na kawo ƙarin amfani ga idanu.
48. Kusan duk suna da lalatawa da shekarun 70-80.
Wannan canjin yanayi ne a cikin jiki. Ci gabanta yana kama da bayyanar launin gashi.
49. A ƙarshe, launi na idanu an saita shi zuwa shekaru 10.
Duk idanu masu baƙi sune launin toka-launin shuɗi a launi. Kuma wannan duk da cewa iyaye na iya samun idanu masu duhu.
50. A cikin Misirar Tsoho, an yi idanu ba kawai ga mata ba, har ma da maza.
Fentin da aka yi amfani da shi shine cakuda jan karfe da gubar. An yi imanin cewa irin kayan da ake yi ba kawai yana zama kayan ado ba, amma yana kare daga hasken rana.
51. Yaren launi na jawo alama ce ta cututtukan koda.
Yawan launi na idanu an samo shi ne saboda kasancewar alamar lipochrome a cikin iris.
52. Zinariya mai kyau ne ga idanu.
Masana kimiyya sun yanke shawarar cewa launi na zinariya yana taimakawa wajen sake hango nesa.