Kasancewar iska yana daya daga cikin mahimman abubuwan duniya, albarkar rayuwa a kanta. Ma'anar iska ga abubuwa masu rai suna da banbanci sosai. Tare da taimakon iska, ƙwayoyin halitta suna motsawa, ciyarwa, adana abubuwan gina jiki, da musayar sautin ingantacce. Ko da kuwa ka fitar da numfashin daga cikin kwatancen, sai ya juya cewa iska tana da mahimmanci ga dukkan rayayyun halittu. An riga an fahimci wannan a zamanin da, lokacin da aka ɗauki iska ɗayan manyan abubuwa huɗu.
1. Tsohon falsafar Girka mai suna Anaximenes ya dauki iska a matsayin tushen duk wani abu da yake a yanayi. Duk yana farawa da iska kuma yana ƙarewa da iska. Abubuwan da abubuwan da ke kewaye da mu, a cewar Anaximenes, ana yin su ne ko dai lokacin da iska tayi kauri ko lokacin da iska ke da wuya.
2. Bajamusheen masanin kimiyya kuma burgomaster na Magdeburg, Otto von Guericke, shine farkon wanda ya nuna ƙarfin matsi na yanayi. Lokacin da ya fitar da iska daga wata kwalliya wacce ke dauke da karfun karfe, sai ya zamto cewa yana da matukar wuya a raba marassa lafiyar. Ba za a iya yin wannan ba ko da haɗakar ƙoƙarin dawakai 16 har ma da dawakai 24. Lissafin da aka yi daga baya ya nuna cewa dawakai na iya sadar da gajeren lokacin da ake bukata don shawo kan matsin yanayi, amma kokarinsu bai daidaita ba. A cikin 2012, manyan motocin daukar kaya na musamman 12 har yanzu suna da ikon raba iyakokin Magdeburg.
3. Ana watsa duk wani sauti ta hanyar iska. Kunne yana ɗaukar motsi a cikin iska na mitoci daban-daban, kuma muna jin sautuka, kiɗa, hayaniyar zirga-zirga ko waƙar tsuntsaye. Thearancin ba daidai yake ba. A cewar wani gwarzon adabi, a sararin samaniya ba za mu ji fashewar wata kasa ba, koda kuwa hakan ta faru a bayan bayanmu.
4. Hanyoyin farko na konewa da hadawan abu kamar hada abubuwa da wani bangare na iska (oxygen) an bayyana a karshen karni na 18 ta hanyar masanin Faransanci Antoine Lavoisier. Oxygen sananne ne a gabansa, kowa ya ga konewa da hadawan abu, amma Lavoisier ne kawai zai iya fahimtar asalin aikin. Daga baya ya tabbatar da cewa iska a sararin samaniya ba abu ne na musamman ba, amma cakuda gas ne daban-daban. Compatan ƙasa masu godiya ba su yaba da nasarorin da babban masanin ya samu ba (Lavoisier, bisa ƙa'ida, ana iya ɗaukarsa a matsayin mahaifin ilimin sunadarai na zamani) kuma suka aike shi zuwa gajan don shiga cikin gonakin haraji.
5. Ikon sararin samaniya ba kawai cakuda gas bane. Hakanan ya ƙunshi ruwa, ɗan kwayar halitta har ma da ƙananan ƙwayoyin cuta. Sayar da gwangwani da aka yiwa lakabi da "City Air NN" tabbas, kamar yaudara ce, amma a aikace iska a wurare daban-daban da gaske ta bambanta ƙwarai a cikin abubuwan da ta ƙunsa.
6. iska tana da haske sosai - mita mai siffar sukari ya dan fi kilogram kadan. A gefe guda, a cikin komai a cikin daki mai tsayin mita 6 X 4 da 3, akwai kimanin kilogram 90 na iska.
7. Kowane mutum na zamani ya saba da gurɓataccen iska kai tsaye. Amma iska, wacce ta ƙunshi abubuwa da yawa masu ƙarfi, tana da haɗari ba kawai ga hanyar numfashi da lafiyar ɗan adam ba. A cikin 1815, dutsen Tambora ya yi aman wuta a ɗaya daga cikin tsibirin Indonesiya. An jefa mafi ƙarancin barbashin toka a cikin adadi mai yawa (wanda aka kiyasta kimanin kilomita cubic 150) zuwa cikin manyan matakan sararin samaniya. Toka ta lulluɓe duniya gabaki ɗaya, tana toshe fitowar rana. A lokacin rani na 1816, ya kasance sanyin da ba a saba gani ba a ko'ina cikin arewacin duniya. An yi dusar ƙanƙara a cikin Amurka da Kanada. A Switzerland, dusar kankara ta ci gaba a duk lokacin bazara. A Jamus, ruwan sama kamar da bakin kwarya ya sa koguna sun cika makil. Babu tambaya game da duk wani kayan amfanin gona, kuma hatsi da aka shigo da shi ya ninka sau 10. 1816 kuma ana kiranta "Shekarar Ba Tare Da Bazara". Akwai abubuwa masu ƙarfi da yawa a cikin iska.
8. Iskar “abin maye ne” a cikin zurfin ruwa da kuma can can can sama. Dalilan wannan tasirin sun sha bamban. A zurfin, karin nitrogen zai fara shiga jini, kuma a tsawo, karancin oxygen a iska.
9. Yawan iskar oxygen a cikin iska ya fi dacewa da mutane. Ko da ɗan raguwar yanayin oxygen yana shafar yanayin mutum da aikinsa. Amma ƙarin abun cikin oxygen ba shi da kyau ko dai. Da farko dai, 'yan sama jannatin Amurka sun shaka iskar oxygen a cikin jiragen ruwa, amma a matse sosai (kusan sau uku na al'ada). Amma kasancewa a cikin irin wannan yanayi yana buƙatar dogon shiri, kuma, kamar yadda ƙaddarar Apollo 1 da ƙungiyoyinta suka nuna, tsarkake oxygen ba kasuwanci ne mai aminci ba.
10. A cikin tsinkayen yanayi, lokacin da ake magana game da danshi, ana saurin manta ma'anar “dangi”. Sabili da haka, wani lokacin tambayoyi kan taso kamar haka: "Idan damshin iska ya kasance kashi 95%, shin ashe ruwa ɗaya muke shaka?" A zahiri, waɗannan ƙididdigar suna nuna rabon adadin tururin ruwa a cikin iska a wani lokacin da aka bayar zuwa matsakaicin yuwuwar adadin. Wato, idan muna magana ne game da kashi 80% na zafi a zafin jiki na + 20 digiri, muna nufin cewa mita mai siffar sukari ya ƙunshi 80% na tururi daga matsakaicin gram 17.3 - gram 13.84.
11. Matsakaicin saurin motsi na iska - 408 km / h - an rubuta shi a tsibirin Barrow na Australiya a cikin 1996. A wancan lokacin, babban guguwa yana wucewa a can. Kuma a kan Tekun Kasashen Commonwealth da ke makwabtaka da Antarctica, saurin iska na kai tsaye yana kilomita 320 / h. A lokaci guda, a cikin cikakkiyar nutsuwa, ƙwayoyin iska suna motsi cikin saurin kusan 1.5 km / h.
12. "Kudi a cikin magudana" ba yana nufin jefa takardar kudi ba. Dangane da ɗayan zato, bayanin ya fito ne daga makirci "cikin iska", tare da taimakon wanda aka sanya ɓarna. Wato, an biya kuɗi a wannan yanayin don ƙaddamar da makirci. Hakanan magana zata iya zuwa daga harajin iska. Manyan mashahuran masarautu sun ɗora ta akan masu injinan tuka iska. Iska tana tafiya akan filayen maigidan!
13. Don numfashi 22,000 a kowace rana, muna shan kusan kilo 20 na iska, yawancinmu muna fitarwa baya, muna ɗaukar kusan oxygen kawai. Yawancin dabbobi ma haka suke. Amma tsire-tsire suna cinye carbon dioxide, kuma suna ba da oxygen. Kashi na biyar na oxygen a duniya ana samar da shi ne daga dajin da ke yankin Amazon.
14. A kasashen da suka ci gaba, kashi daya cikin goma na wutan lantarkin da ake samarwa yana zuwa samar da iska mai matse iska. Adana makamashi ta wannan yafi tsada fiye da ɗauka daga mai ko ruwa na gargajiya, amma wani lokacin baza ka iya yin ba tare da matattarar iska ba. Misali, lokacin amfani da jackhammer a cikin ma'adinai.
15. Idan duk iska a duniya aka tara ta cikin kwalli a matsin lamba, diamita kwallon zai kai kimanin kilomita 2,000.