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. - ` _; H. T) r' ?! ?
% A9 P/ A- }2 q* D. S& Q- v5 t
the possibiolity is endless which will make it impossible to repeat the experiment. |
發表於 2011-6-24 09:56 AM
| 
發表於 2011-6-24 08:23 PM
| 
