Njengamanje, ukungcoliswa komsindo sekungenye yezinto eziyisithupha ezinkulu zokungcoliswa kwemvelo.
Imuphi umsindo ohlukaniswa njengomsindo?
Incazelo yesayensi iwukuthi umsindo okhishwa umzimba ozwakalayo lapho udlidliza ngendlela engavamile ubizwa ngokuthi umsindo. Uma umsindo okhishwa yindikimba enomsindo udlula amazinga okukhishwa komsindo wemvelo abekwe izwe futhi uthinta impilo evamile yabantu, ukufunda nomsebenzi, sikubiza ngokuthi ukungcoliswa komsindo kwemvelo.
Ukulimala okuqondile kakhulu komsindo emzimbeni womuntu kubonakala ekulimazeni kokuzwa. Isibonelo, ukuchayeka isikhathi eside emsindweni ophindaphindayo, noma ukuchayeka emsindweni we-super decibel isikhathi eside ngesikhathi, kuzodala ukungezwa kwemizwa yezinzwa. Ngesikhathi esifanayo, uma umsindo ojwayelekile udlula ama-decibel angu-85-90, uzodala umonakalo ku-cochlea. Uma izinto ziqhubeka kanje, ukuzwa kuzokwehla kancane kancane. Uma usuchayeke endaweni engama-decibel angu-140 nangaphezulu, kungakhathaliseki ukuthi isikhathi sokuchayeka sisifishane kangakanani, umonakalo wokuzwa uzokwenzeka, futhi ezimweni ezimbi kakhulu, uyobangela ngisho nokulimala okuhlala njalo okungenakulungiseka.
Kodwa bewazi yini ukuthi ngaphezu kokulimala okuqondile ezindlebeni nasekuzweni, umsindo ungathinta namehlo ethu nokubona.
●Ukuhlola okufanelekile kubonisa lokho
Lapho umsindo ufinyelela kuma-decibel angu-90, ukuzwela kwamangqamuzana okubuka komuntu kuzokwehla, futhi isikhathi sokusabela sokuhlonza ukukhanya okubuthakathaka sizokwelulwa;
Lapho umsindo ufinyelela kuma-decibel angu-95, abantu abangamaphesenti angu-40 banabafundi abavuleke futhi bangaboni kahle;
Lapho umsindo ufinyelela kuma-decibel angu-115, ukuzivumelanisa kwamehlo abantu abaningi nokukhanya kokukhanya kuyehla kuye ngamazinga ahlukahlukene.
Ngakho-ke, abantu asebehlale endaweni enomsindo isikhathi eside bathambekele ekulimaleni kwamehlo njengokukhathala kwamehlo, ubuhlungu bamehlo, i-vertigo, nezinyembezi ezibonakalayo. Ucwaningo luphinde lwathola ukuthi umsindo ungehlisa ukubona kwabantu okubomvu, okuluhlaza okwesibhakabhaka nokumhlophe ngo-80%.
Kungani lokhu? Ngenxa yokuthi amehlo nezindlebe zomuntu zixhunywe ngezinga elithile, zixhunywe esikhungweni sezinzwa. Umsindo ungathinta isimiso sezinzwa esimaphakathi sobuchopho bomuntu kuyilapho ulimaza ukuzwa. Lapho umsindo udluliselwa esithweni somuntu sokuzwa-indlebe, usebenzisa isimiso sezinzwa sobuchopho ukuze usidlulisele esithweni somuntu esibonakalayo-iso. Umsindo omningi uzodala ukulimala kwezinzwa, okubuye kuholele ekwehleni nasekuphazamisekeni kokusebenza kokubonwayo jikelele.
Ukunciphisa ukulimala komsindo, singaqala kulezi zici ezilandelayo.
Eyokuqala iwukuqeda umsindo emthonjeni, okungukuthi, ukuqeda ukuvela komsindo ngokuyisisekelo;
Okwesibili, kunganciphisa isikhathi sokuchayeka endaweni yomsindo;
Ngaphezu kwalokho, ungakwazi futhi ukugqoka ama-earphone amelene nomsindo ukuze uzivikele;
Ngaso leso sikhathi, qinisa ukwazisa nokufundisa ngezingozi zokungcoliswa komsindo ukuze wonke umuntu azi ngokubaluleka nesidingo sokunciphisa ukungcoliswa komsindo.
Ngakho ngokuzayo uma othile ebanga umsindo okhethekile, ungamtshela ukuthi “Shhh! Ngicela uthule, unomsindo emehlweni ami.”
Isikhathi sokuthumela: Jan-26-2022