1st trial - put 6 balls at each side .. take out the lighter 6 ballsTVBNOW 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。! }% p/ i7 Y. K. d: i3 I2 P- Q( _) l
2nd trial - put the heavier 6 balls by 3 balls at each side公仔箱論壇5 L; p9 h9 w& ? f& r
lastly, take out the lighter 3 balls.... now left 3 balls..
$ v9 J; Q1 ~7 w: swww2.tvboxnow.com3rd trial - put 1 ball on each side, left 1 ball on table. if both sides balance, the ball on table is the heaviest. if one side on the scale is heavier then it is the heaviest... |