Uruhererekane rwibicuruzwa bikozwe muri fibre luminous.Igihe cyose ikurura urumuri urwo arirwo rwose rugaragara muminota 10, ingufu zumucyo zirashobora kubikwa muri fibre, kandi irashobora gukomeza gutanga urumuri mumasaha arenga 10 mumwijima.Ibibi, radioactivite ntabwo irenze ibisanzwe, igera kumutekano wabantu ...
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