Iintambo zethu eziguquguqukayo ziyilelwe zombini ukufakelwa kwangaphandle nangaphakathi kwiindawo ezifumileyo nezimanzi.Ziyiyo ukhetho olugqibeleleyo lokudibanisa iiyunithi zokubonisa kunye nokulawula kuluhlu olubanzi lwamashishini, kubandakanywa oololiwe, iimpawu zendlela, i-thermopower, kunye nezikhululo zombane wamanzi.Ezi ntambo zinokuthi zibekwe lula emoyeni, kwiibhobho, imisele, izibiyeli zenkxaso yensimbi, okanye ngokuthe ngqo emhlabeni, zinika ukhuseleko oluthembekileyo kwiindawo ezahlukeneyo.