Unfortunately we're getting way off topic now. But it's worth it. Watch http://web.jjay.cuny.edu/~acarpi/NSC-2/Jesus%20Lizard.avi of a Basilisk Lizard running on water.
So when people rescuing someone after having broken the ice lie down, is it to distribute their weight over a larger area? I think I've seen ladders put on the ice used, too.
Reminds me of an episode of the tv show Mythbusters, in which they proved that running in rain gets you more wet than walking in rain does. Unfortunately I didn't get to see how they conducted the tests.
It's also important to remember that you can break ice while running. I'm sure many of the competitors on "World's Strongest Man" would be very likely to break ice even while running on it. :biggrin:
Think of it this way.
When one stands still, all of his or her weight is a slave to gravity, forcing pressure perpendicular to the ground.
But when this person runs, part of their weight is moving forward as a result of momentum (and all that good stuff). It's almost as if, according to...