put 3 balls on each side,
7 o r# |7 d8 a6 ]7 [; j公仔箱論壇if balance, we can prove that all 6 balls on 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。) u7 T% {9 O* I4 O
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。7 g& g" c' q! m2 `( [% J
then use the proved-normal ball on one side and put the other ball on other side
" X6 \% J( a$ z1 }) J5 V. Oto determine the abnormal is heavy and light |