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.
1 T; o/ _0 V9 o; l- _% |+ x+ P0 K+ y2 t% i1 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
| 
