for the glass fragment to strike her, the glass has to be smash at a precise speed and precise angle with a precise orientation, and possibly if the glass has any pre-existing defect. 公仔箱論壇2 i" P% g8 e3 E
8 \/ B" g6 P4 d1 y% Dtvb now,tvbnow,bttvbthe possibiolity is endless which will make it impossible to repeat the experiment. |