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. `/ [( t: h" g6 h- T" c5 k) S" \
7 T# z7 x% ?3 D; Y; B. N
the possibiolity is endless which will make it impossible to repeat the experiment. |