Izigayo zokunyathelayimishini eguquguqukayo evame ukutholakala ezindaweni zokuzivocavoca nasemakhaya emhlabeni jikelele. Iwumshini wokuzivocavoca odumile osetshenziselwa ukugijima, ukugijima, ukuhamba, ngisho nokukhuphuka. Nakuba sivame ukuwuthatha kalula lo mshini namuhla, bambalwa abantu abazi umlando walolu hlobo lwemishini yokuzivocavoca. Wake wazibuza ukuthi i-treadmill yasungulwa nini? Kulesi sihloko, sixoxa ngomlando othakazelisayo we-treadmill nokuthi uye washintsha kanjani ngokuhamba kwesikhathi.
Uhlobo lokuqala olwaziwayo lwe-treadmill yi-"treadwheel" noma "turnspit" eyasungulwa amaRoma ngekhulu loku-1 AD. Luyithuluzi elisetshenziselwa ukugaya okusanhlamvu, ukupompa amanzi, kanye nokunikeza amandla imishini ehlukahlukene. I-treadwheel inesondo elikhulu elijikelezayo elixhunywe ku-axis eqondile. Abantu noma izilwane babenyathela isondo, futhi lapho liphenduka, i-axle yayinyakazisa eminye imishini.
Ngokushesha ngekhulu le-19, futhi umshini wokugijima washintsha waba ithuluzi lokujezisa elisetshenziswa ohlelweni lwejele. Iziboshwa zazisebenza usuku lonke ezimotweni zokugijima, zikhiqiza ugesi wemishini efana nokugaya ufulawa noma ukupompa amanzi. Izitsha zokugibela zazisetshenziswa futhi njengomsebenzi ophoqelelwe ezigebengwini, futhi isijeziso kanye nomsebenzi kwakubhekwa njengokungabi nonya kunezinye izinhlobo zesijeziso. Lokhu kuwukuhlushwa okubi kakhulu, futhi ngeshwa, akugcini eNgilandi.
Nokho, ngokushesha, umbono we-treadmill washintsha futhi, futhi waba yimishini yokuzivocavoca ethandwayo ekupheleni kwekhulu le-19. Yasungulwa nguWilliam Staub ngo-1968, i-treadmill yesimanje yashintsha ukugijima ngaphakathi endlini. Umshini kaStaub unebhande elixhunywe kunjini elihamba ngesivinini esibekiwe, okuvumela umsebenzisi ukuthi ahambe noma agijime endaweni yakhe. UStaub wayekholelwa ukuthi ukusungula kwakhe kwakunamandla embonini yokuzivocavoca, futhi wayeqinisile.
Ekhulwini lama-21, ama-treadmill obuchwepheshe obuphezulu avele futhi athandwa kakhulu ezindaweni zokuzivocavoca nasemakhaya emhlabeni jikelele. Ama-treadmill anamuhla afakwe izibonisi zedijithali eziqapha ukushaya kwenhliziyo yomsebenzisi, ibanga lomzila, ubude kanye nesivinini. Ngaphezu kwalokho, eza ngezimo nobukhulu obuhlukahlukene futhi zinikeza izici ezingenziwa ngokwezifiso njengezilungiselelo zokuthambekela nokwehla.
Namuhla, ama-treadmill athandwa kakhulu ngabantu babo bonke ubudala kanye namazinga okuqina komzimba. Ayindlela ephephile nelula yokuzivocavoca ngaphakathi endlini, enikeza abantu ithuba lokuqhubeka nohambo lwabo lokuqina komzimba ngaphandle kokukhathazeka ngezinto zangaphandle njengezimo zezulu noma isikhathi esilinganiselwe. Ama-treadmill nawo alungele labo abathanda ukuzivocavoca bodwa noma emakhaya abo.
Ekuphetheni, ama-treadmill ahambe ibanga elide kusukela asungulwa. Kusukela ekusetshenzisweni kwasendulo kokugaya ufulawa kuya emishinini yokuzivocavoca ethandwayo ekhulwini lama-21, umlando we-treadmill uthakazelisa njengoba uthakazelisa. Njengoba ubuchwepheshe buqhubeka nokuthuthuka, singacabanga nje ngekusasa le-treadmill. Into eyodwa eqinisekile; ama-treadmill akhona futhi azoqhubeka nokuba yinto ebalulekile embonini yokuzivocavoca.
Isikhathi sokuthunyelwe: Juni-12-2023