put 3 balls on each side,
7 @4 J2 E. Y" P5 YTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。if balance, we can prove that all 6 balls on the 天平 is normal,
% y. J/ f# R5 A& u9 r, M公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。" r- n( a% |5 T! @) f! ~
then use the proved-normal ball on one side and put the other ball on other side
% f# S5 L2 R: b- z0 q3 m; S& a! Ktvb now,tvbnow,bttvbto determine the abnormal is heavy and light |