HaveyouevertriedtheMagicCube(魔方)”？Pickuponeofthesecubesandyouprobablywon’tbeabletoPlitdown.Howhardcanitbetorearrangetheninelittles2oneachsideofthecube?Infacttherearemillionsofpossib

　　  HaveyouevertriedtheMagicCube(魔方)”？Pickuponeofthesecubesandyouprobablywon’tbeabletoPl itdown.Howhardcanitbetorearrangetheninelittles2 oneachsideofthecube?In

　　facttherearemillionsofpossibilities!Ithasbeenover40yearssincethecubefirsth3 themarket.Howevernotmanypeopleknowthatitwasusedjustasasimpleclassroomm4 inthebeginning.

　　  In1974ErnoRubiki5 the“MagicCube”ashecalledit.Hedidthistohelphisstudentsu6 difficult3-Dconcepts(概念).Thisclassroomexamplewasquicklyt7 intoapopulartoy.In1979IdealToysstartedtosellitas“Rubik'sCube”.Theinventionquicklybecameac8 iconinthe1980s.

　　  Astimewentbythecubeonce19 itsattractivequalities.HoweveritmadeacomebackwiththeInternet.Nowanyonecangoonlineandfindmanyvideosthatshowwaystos10 thecube. 

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