7 , ▁▁▁ 视 <0xE5> <0xB9> <0xBB> <0xE8> <0xA7> <0x89> ▁( Opt ical ▁ill us ions ), ▁China ▁Friend ship ▁Publishing ▁Company , ▁China , ▁ 2 0 0 7 , ▁▁ ▁Opt ische ▁Ill usion en , ▁Welt bild , ▁Germany , ▁ 2 0 0 6 , ▁▁ ▁N iew e ▁Opt ische ▁Ill us ies , ▁B Z Z TO H , ▁The ▁Netherlands , ▁ 2 0 0 6 , ▁▁ ▁N ouvelles ▁Ill us ions ▁d ’ Opt ique , ▁France ▁Lo is irs , ▁France , ▁ 2 0 0 6 , ▁ ▁Mate Mag ica , ▁Ed izioni ▁La ▁Mer id iana , ▁Italy , ▁ 2 0 0 5 , ▁ ▁L ’ Al man ach ▁du ▁Math ém atic ien ▁en ▁her be , ▁Ed itions ▁Arch im ède , ▁France , ▁ 2 0 0 2 , ▁▁ ▁La ▁Cou leur ▁dans ▁tous ▁ses ▁ét ats , ▁Ed itions ▁Y va ▁P ey ret , ▁France , ▁ 1 9 9 5 , ▁ ▁References ▁ ▁Rel ated ▁links ▁▁ ▁Neu ros cience ▁ ▁Op ▁art ▁ ▁Opt ical ▁ill usion ▁ ▁Visual ▁thinking ▁ ▁Th inking ▁outside ▁the ▁box ▁ ▁Rec re ational ▁mathematics ▁ ▁Best ▁Ill usion ▁of ▁the ▁Year ▁Cont est ▁ ▁External ▁links ▁▁▁▁▁ ▁These ▁Pattern s ▁Move ▁But ▁It ’ s ▁All ▁An ▁Ill usion ▁by ▁G . ▁Sar con e ▁ ▁The ▁Opt ical ▁Ill usion ▁That ▁M akes ▁St atic ▁L ines ▁Look ▁Like ▁They '