put 3 balls on each side,
% d* h; a4 g& Q1 }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。if balance, we can prove that all 6 balls on the 天平 is normal, tvb now,tvbnow,bttvb* d, a! P$ Y. w2 `) J& [) S3 [ q
if not balance, we can prove that the 6 balls outside the 天平 is normal.
2 w# n+ d5 u) n) t( k( r+ v公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side 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。0 ~" R! d W! u- k, ?2 @
to determine the abnormal is heavy and light |