He hit the water-impacted really is the word for it-at over six hundred miles an hour, with a report so loud that it made birds fly out of trees up to three miles away. At such a speed water effectively becomes a solid. I don't believe Mr. Milton penetrated it at all, but just bounced off it about fifteen feet, limbs suddenly very loose, and then lay on top of it, still, like an autumn leaf, spinning gently.