2 ways, 1. most of pig body is float on water with head, 2 front

1. most of pig body is float on water with head, 2 front legs hold on the bridge. That is less than half of the pig's whole body is on the bridge, pig's two rear legs and rear body (is just float on water)..

2. pigs can also buy (less than air weight) balloons, to help left at least half weight and walk through the bridge.

(all original answers, no copyright infringed.:)

所有跟帖： 

• 高 -createuniverse2- ♂ (0 bytes) () 04/02/2010 postreply 11:36:44