Tadyant tella-d d ubrid ɣer taddart. Ɣas akken, taddart teldi-d tiwwura-ines i lɛadat n temdint, ama d tin yelhan Tussna n Archimed, takerrust, tilifun...; ama d tid n diri: tiqerɛatin d tilmawin, ticekkarin n plastikɣef yisekla ...