Kuyisimo esivame kakhulu. Imigwaqo eyonakele, egcwele imigodi, iphusha ukuxhumeka komhlaba kuze kube umkhawulo futhi iguge ngaphambi kwesikhathi. Noma ngisho nokuholela ekupheleni kwayo, noma ngabe ngama-puncture namathayi aqhumayo, noma i-shock absorber eyonakele.
Izindleko ziphezulu, kubashayeli, ababhekene nezikweletu eziphezulu zokukhanda, nomasipala nezinye izinhlaka, okumele zinakekele noma zakhe kabusha yona le migwaqo.
Manje, abaphenyi baseSwitzerland bafinyelele isixazululo esibukeka njengomlingo… omnyama, njengethoni yetiyela. Bakwazile ukwakha imigwaqo ekwazi ukuzilungisa, ukuvimbela ukwakheka kwemigodi engalungile. Kodwa akuwona umlingo, kodwa isayensi enhle, ukusebenzisa i-nano-technology ukuxazulula inkinga ekhona kusukela umgwaqo ogandayiwe wadalwa.
Kungenzeka kanjani ukuthi umgwaqo uzilungise?
Okokuqala kufanele sithole ukuthi izimbobo zakha kanjani. Itiyela lomgwaqo owenziwe ngalo libhekana namazinga aphezulu okushisa nokucindezela kwemishini, ingasaphathwa eyokuchayeka ezintweni. Lezi zici zicindezela i-material ukuthi ifinyelele emkhawulweni, ikhiqize ukuqhekeka okuncane, okunwebeka ngokuhamba kwesikhathi kuze kube yilapho eyeka ukuba imifantu futhi agcine eseyizimbobo.
Okusho ukuthi, uma sivimbela ukwakheka kwemifantu, sizovimbela ukwakheka kwezimbobo. Uyathanda? Imfihlo ikubitumen - into emnyama yokubopha i-viscous, etholakala kumafutha angcolile, abamba zonke izinto ezisetshenziswa ku-asphalt ndawonye.
Kubitumen eyaziwayo, inani eliqondile le-iron oxide nanoparticles lengeziwe eliqinisekisa izakhiwo zokulungisa. Lezi uma zichayeke endaweni kazibuthe ziyashisa. Futhi zishisa kuze kube yilapho zingancibilikisa itiyela, ngaleyo ndlela zigcwalise noma yimiphi imifantu.
Etienne Jeoffroy, ETH Zurich kanye neMpa Complex Materials LaboratoryUmqondo uwukuba nezinhlayiya ze-nano ezihlanganiswe ne-binder [...] futhi zishise zize zigeleze kancane futhi zivale imifantu.
Lesi sixazululo asivimbeli ukwakheka kwemifantu ngokwayo. Ngamanye amazwi, bekuzophoqa umgwaqo ukuthi uvezwe, ngezikhathi ezithile, uye endaweni kazibuthe ukuze izici ezivuselelayo zezinto zisebenze. Ngokusho kwabacwaningi, bekungaba okwanele kanye ngonyaka ukuqinisekisa ukusebenza kwekhambi. Futhi okungcono kakhulu, ubude bomgwaqo bunganwetshwa ngokuhamba kwesikhathi, bufike ngokuphindwe kabili kunalokhu okwenziwa manje.
Ukuphila isikhathi eside okukhulu, izindleko eziphansi zesikhathi eside. Futhi ngeke kudingeke amakhono amasha noma imishini yokwakha imigwaqo, njengoba izinhlayiya ze-nano zengezwa phakathi nenqubo yokulungiselela itiyela.
Ukuze kuvezwe umgwaqo endaweni kazibuthe, abacwaningi basikisela ukuthi izimoto zihlonyiswe ngamakhoyili amakhulu, okungukuthi, amajeneretha asebenza ngozibuthe. Uma sekufika isikhathi sokulungisa umgwaqo, uzovalwa amahora ambalwa, ukuze lawa majeneretha agingqikayo ajikeleze.
Ukuze ikhambi lisebenze ngokugcwele, umgwaqo kufanele wakhiwe ngale nto kusukela ekuqaleni. Kodwa-ke, ayikuvimbeli ukuthi isetshenziswe emigwaqweni ekhona, njengoba uJeoffroy esho: “Singaba nezinhlayiya ezithile ze-nano kule ngxube futhi endaweni sisebenzise insimu kazibuthe, sifinyelele izinga lokushisa elidingekayo ukuze sihlanganise into entsha naleyo umgwaqo okhona”.
Umgomo weqembu manje uwukuthola ozakwethu bebhizinisi abangakala isistimu futhi bathole indlela engabizi kakhulu yokusetshenziswa kwayo kwangempela.