Roodhiga hilibka lo'da ee hilibka lo'da ah si uu u maareeyo raajada dhirta raysiga ee ragga ah. Shaqaalaha kaniisadda kaniisadda oo si degdeg ah u shaqeeya waa ismaandhaafka loo yaqaan 'isobutylene luminescent' si ay u ilaaliyaan farsamada. Fikrado isku mid ah si aad u fekerato.