Kule minyaka engaphezu kweyishumi, uluntu luye lwaphikisana nomphumo wefowuni ephathekayo kwimpilo. Ukususela kwiminyaka engama-90, iziphumo zophando ziye zabonakala zibonisa ukuba ukusetyenziswa kwefowuni kubangele utshintsho oluthile lwezempilo kunye nokutshintshwa kwezi zifundo, ezilungiselelwe ziingcali ezifanayo. Okwangoku, akukho nkcazelo yokugqibela eya kuqinisekisa okanye ukuphikisa ingozi ngokusebenzisa ifoni yeselula.
Ngomzuzu ngokuqinisekileyo kusekwa ukuba inzakalo ethile evela kumnxeba weselula ikhoyo. Eyona nto ihambelana nemisebe ye-electromagnetic i-fowuni eyenza ngokuzenzekelayo, kunye nayo nayiphi na ifowuni esebenza kumbane - isethi seTV, isiqandisisi, i-oven microwaves kunye nezinto ezifana. Nangona kunjalo, inyaniso kukuba ifowuni idla ngokuchanekileyo kunye nentloko yethu, eyandisa impembelelo engalunganga yale ntsimi kwimizimba ngomyalelo wobukhulu. Ngokwezifundo ezithile, olu hlobo lomsakazo luyingozi kubantu, ingakumbi ngenxa yokuba imiphumo yesiphumo ayinakubonakala ixesha elide, kuba kunzima ukuphawula impembelelo engaphandle kwimeko enzima kwaye inobungozi njengengqondo yethu, umzimba womntu.
Ngokubanzi, ifowuni echaphazelekayo ayithinteli kuphela intloko yomntu, kodwa nayo yonke inxalenye yomzimba ngokupheleleyo, kuba abaninzi bethu behlala benomnxeba kunye nathi, ngamanye amaxesha nobusuku, besoyika ukuphosa umnxeba obalulekileyo. Ngaloo ndlela, ngenxa yokuba esondele kuthi kwindawo esondeleyo isoloko umthombo owongezelelweyo wemisebe ye-electromagnetic, umzimba wethu usengozini enkulu.
Eyona nto inesifo kwi-radiation ye-electromagnetic yomnxeba ngabafowuni. Ngenxa yokuba amathambo abo, kuquka namathambo ekhanda, anqabile kunamathambo eengqayi zabantu abadala, abanako ukukhusela umbane onobungozi, kwaye ngenxa yento encinci (kwakhona xa kuthelekiswa nabantu abadala) ipharamitha yesisindo I-SAR kubo ingaba ngaphezu kokubalwa.
I-SAR (emele i-Specific Absorption) ibonisa umbane ocacisa amandla endle ekhutshwe emzimbeni womntu ngexesha elilinganayo nesibini. Ngalom parameter, abaphandi banokulinganisa indlela ifowuni echaphazela ngayo umzimba womntu. Ilinganiswa kwiitts nganye kilogram. Ixabiso lokugcina umbane we-electro-magnetic radiation ezimbini iitts nganye kilogram.
Abaphandi be-European Union baye babonisa ukuba imisebe, ephakathi kwexabiso le-SAR ye-0.3 ukuya kwi-2 watts kilogram, ingonakalisa i-DNA kumandla.
Iingcali zenzululwazi, ukuba zihlolisise abantwana abangaphezu kwewaka elishumi, ziye zazimisela ukuba ukusetyenziswa rhoqo kweefowuni ngexesha lokukhulelwa kunokuchaphazela kakubi impilo yomntwana ozayo.
Kukho iziphumo ezaziwa kakhulu zophando lukaDkt. J. Highland waseYunivesithi yaseWarwick, eBrithani. Uxela ukuba iifowuni zefowuni azikhuselekanga, ngokukodwa zingabangela ukuphazamiseka kokulala, ukulahleka kwememori kunye nezinye iingxaki zempilo. Uthi kwakhona oku kuchaphazela abantwana ngakumbi, ekubeni isistim somzimba sabo sisebenza kakuhle kunabantu abadala.
Ukongeza, ubunkokheli bePalamente yeYurophu benza uphando lucebisa ukuba onke amazwe aseYurophu Union avumele ngokupheleleyo ukusetyenziswa kweefowuni eziphathekayo ngabantu abangaphantsi kweminyaka yobudala. Ngokombiko wabo, ukusetyenziswa kwezonxibelelwano zeselula kunokuthintela ukuphuhliswa komntwana, kwaye kuyachaphazela kakubi ukuvavanywa kwakhe esikolweni. Kwizifundo, iziphumo zazo zifakwe kwingxelo, izazinzulu ezivela kwiYunivesithi yaseWarwick, iqela laseBritani leeNgcali ezizimeleyo kunye neJamani leNkcubeko ye-Biophysics ithathe inxaxheba.
E-UK, sele sele kuvaliwe ukuthengiswa kweefowuni zomntu kubantu abangaphantsi kweminyaka yobudala. Kwakhona, abantwana abangaphantsi kweminyaka eyi-8 bavumeleke ukuba basebenzise ii-fowuni.