▁ ▁Rec y cling ▁ ▁Circ ular ▁Econom y ▁ ▁References ▁ ▁Further ▁reading ▁Edward ▁P . ▁F url ani , ▁" P erman ent ▁Mag net ▁and ▁Elect rome chan ical ▁Dev ices : ▁Material s , ▁Analysis ▁and ▁App lications ", ▁Academ ic ▁Press ▁Series ▁in ▁Elect romagnet ism ▁( 2 0 0 1 ). ▁. ▁Peter ▁Campbell , ▁" P erman ent ▁Mag net ▁Material s ▁and ▁their ▁Application " ▁( C amb ridge ▁Studies ▁in ▁Mag net ism )( 1 9 9 6 ). ▁. ▁ ▁External ▁links ▁Standard ▁Spec ifications ▁for ▁P erman ent ▁Mag net ▁Material s ▁( Mag net ic ▁Material s ▁Produ cers ▁Association ) ▁ ▁Category : Mag net ic ▁lev itation ▁Category : Types ▁of ▁magnet s ▁Category : F er romagnet ic ▁materials ▁Category : L oud spe akers <0x0A> </s> ▁Aur ora ▁A ks nes ▁( born ▁ 1 5 ▁June ▁ 1 9 9 6 ), ▁known ▁mon onym ously ▁as ▁Aur ora ▁( st yl ised ▁in ▁all ▁caps ), ▁is ▁a ▁Norwegian ▁singer , ▁song writer , ▁and ▁record ▁producer . ▁Born ▁in ▁St av anger , ▁Aur ora ▁released ▁her ▁debut ▁EP , ▁Running ▁with ▁the ▁Wol ves , ▁in ▁ 2 0 1 5 ▁through ▁De cca ▁Records . ▁Later ▁the ▁same ▁year , ▁she ▁provided ▁the ▁backing ▁track ▁for ▁the ▁John ▁Lewis ▁Christmas ▁advert , ▁singing ▁a ▁cover ▁of ▁the ▁O asis ▁song ▁" H alf ▁the ▁World ▁A way ". ▁Aur ora ▁released ▁her