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7 U# F g* i/ N6 ~6 L$ s* }! d
* @' s1 V% ?- Y% m# g! l! g5 ~ @! Stvb now,tvbnow,bttvbthe possibiolity is endless which will make it impossible to repeat the experiment. |